マイクロニクス List of Products and Services

This report will compare and explain the results of measuring the same DUT in a standard EMC anechoic chamber and a simplified EMI test system MR2300. 【Product Introduction】 ■EMI Test System MR2300 *For more details, please refer to the PDF document or feel free to contact us.*

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This is a wideband, lightweight, and inexpensive log-periodic antenna. It is suitable for use in combination with our handheld spectrum analyzer. Additionally, by performing antenna gain correction within our spectrum analyzer, the values can be directly read in terms of electric field strength (dBμV/m). ■MAN160A - Frequency range: 700MHz to 4GHz - Maximum power: 100W (CW at 400MHz) - Impedance: 50Ω (nominal) - VSWR: 2.0 or less (typical value) - Gain: 4dBi (typical value) - Antenna factor: 23 to 38dB/m - Connector: SMA(J) - Dimensions: 340(L) × 200(W) × 25(D) mm - Weight: 270g ■MAN160B - Frequency range: 700MHz to 6GHz - Maximum power: 100W (CW at 400MHz) - Impedance: 50Ω (nominal) - VSWR: 2.0 or less (typical value) - Gain: 5dBi (typical value) - Antenna factor: 26 to 41dB/m - Connector: SMA(J) - Dimensions: 340(L) × 200(W) × 25(D) mm - Weight: 250g

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● A simple radio anechoic chamber that can be widely used for 5G OTA, radio wave law measures, EMC testing, and more. ● No major construction is required, and the construction period is about 2-3 days (for standard configuration). ● We offer a lineup of 8 standard sizes.

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3-part assembly type. It maintains shielding performance while allowing for disassembly and assembly. It is ideal for transport via passenger elevators and installation in narrow spaces such as office buildings. For more details, please download the catalog or contact us. 【Main Features】 ○ Disassembly and assembly type that can be transported via passenger elevators and installed in narrow spaces ○ Uses ferrite-based electromagnetic wave absorbers, making it suitable for EMI testing ○ Standard equipped with a turntable with a diameter of 500mm and a load capacity of 50kg for large EUTs ● For more details, please download the catalog or contact us.

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At Micronics, we are offering monitoring equipment that combines our 'MSA Series' with a magnetic field probe for the constant monitoring/recording of noise levels on power lines at a special price. Utilizing the characteristics of our magnetic field probe, which allows for non-contact electrical measurements, we conduct noise monitoring of various secondary power lines using a combination of a spectrum analyzer and logging software. 【Campaign Details】 ■ Period: Until March 31, 2021 (Wednesday) ■ During the campaign period, eligible products are up to 25% OFF *For more details, please refer to the PDF document or feel free to contact us. 【Eligible Products】 <Spectrum Analyzer "MSA400 series"> ■ MSA438 ■ MSA458 ■ MSA438TG ■ MSA438E <Signal Analyzer "MSA500 series"> ■ MSA538 ■ MSA558 ■ MSA538TG ■ MSA538E ■ MSA558E *For more details, please refer to the PDF document or feel free to contact us.

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【Product Introduction】 ■ Signal Analyzer MSA500 Series Equipped with both real-time method using Fast Fourier Transform (FFT) and traditional sweeping method. Each method can utilize its respective advantages. ■ Spectrum Analyzer MSA400 Series Compact and lightweight. A full-fledged spectrum analyzer with performance and functionality that rivals large bench-type models. Both oscilloscopes and spectrum analyzers are devices that measure electrical signals. The measurement results of an oscilloscope are displayed on the screen with the horizontal axis representing time and the vertical axis representing amplitude. On the other hand, the measurement results of a spectrum analyzer are displayed with the horizontal axis representing frequency and the vertical axis representing amplitude. I will explain the relationship of amplitude when measuring a sine wave signal with both an oscilloscope and a spectrum analyzer.

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【Product Introduction】 ■ RF Signal Generator MSG703 IQ vector generation function, extensive modulation functions, and sweep functions. ■ Signal Analyzer MSA538 The most popular model in the MSA500 series - Measurement frequency: 20kHz to 3.3GHz ■ PC Software MAS400/500 Software that displays spectral waveforms on a PC screen.

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The MSG703 is an RF signal generator equipped with advanced modulation, sweeping, and triggering functions. It supports standard modulations such as FSK, PSK, and AM, and by adding the optional IQ modulator MIQ700, it can flexibly use various modulations such as PSK and QAM as a vector signal generator. IQ modulation is adopted in various wireless standards, and here we will introduce how to output modulation signals from the MSG703 using π/4QPSK, which is used in Japan's ETC2.0 and professional digital radio, along with actual images of the MSG703. 【Product Introduction】 ■ RF Signal Generator [MSG703] ■ IQ Modulator [MIQ700] *For more details, please refer to the PDF document or feel free to contact us.

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The electromagnetic wave radiation pattern measurement system MRP770 is a system designed to measure the radiation patterns of small wireless devices, information communication equipment, antennas, and more. In today's rapidly advancing IoT environment, various devices are equipped with wireless modules, making the understanding of antenna performance increasingly important. This system is one such example. We provide suitable systems tailored to our customers' needs.

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To conduct a conducted interference noise test, we use a LISN (Line Impedance Stabilization Network). However, based on the demand for a more convenient way to perform this test or to identify the noise source, the magnetic field probe MMP500 was developed. With the MMP500 and the signal analyzers MSA538E/MSA558E, it is possible to easily measure this conducted interference noise. The MMP500 was developed in collaboration with the Tokyo Metropolitan Industrial Technology Research Institute, a local independent administrative agency.

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Generally, an anechoic chamber is perceived as having a large scale, high installation costs, and significant maintenance expenses. However, our electromagnetic shielded tent-type anechoic chamber offers a proposal to construct an anechoic chamber in a cost-effective and easy manner, similar to a small anechoic box. In particular, it is suitable for cases where strict RF characteristic testing or antenna evaluation is not conducted, such as for radio law compliance, protocol testing, function testing, and interoperability testing. It meets the needs of those who do not require a full anechoic chamber but desire a simple anechoic chamber. Our product utilizes high-performance shielding materials that combine shielding effectiveness, cost, and lightweight properties. Due to its tightly packed seams, it maintains high shielding performance while being affordable and lightweight, allowing for the safe construction of large spaces on a low budget. Its lightweight design and ease of assembly, disassembly, and mobility mean it can be set up in various locations without difficulty.

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The "MY5505" is a partition designed to absorb and shield against interference waves from other sources in the evaluation and testing of radio wave propagation. If you are already using a shielded room or tent, it can help reduce the reflection of radio waves inside. Both sides are angled inward at 30°, suppressing radio wave reflections from backlobes and sidelobes. With its flexible casters, it is easy to move and set up. 【Features】 ■ Suitable for simple measurements of mobile phones, GPS, wireless LAN, 5G, and various millimeter waves ■ Convenient caster design for mobility ■ Customizable to the required size and desired frequency band *For more details, please refer to the PDF document or feel free to contact us. 【Specifications】 ■ External dimensions: Approximately 1370(W) × 1850(H) × 700(D) mm (excluding protrusions) ■ Weight: Approximately 55 kg (excluding weight plate) ■ Material: Aluminum plate ■ Casters: Flexible casters (with stopper) × 4 ■ Others: Eye bolts, protective caps (for edge protection) *For more details, please refer to the PDF document or feel free to contact us.

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The "ME8901" is a system for communication after installing the ETC on-board unit in the vehicle. It is based on our "DSRC Roadside System ME9300." By connecting each device and connecting the dedicated AC adapter for the modified ME9302 to the power supply, the power will turn ON, and the scenario recorded internally will automatically start, allowing the test to begin. The test is initiated by pulling the tether switch. Customization according to your testing environment is also possible. Please contact us for more details. 【System Configuration】 ■ Antenna Unit: ME9301 modified ■ Interface Box Unit: ME9302 modified ■ Connection Cable: ME9303 ■ Tether Switch ■ Switch Cable (connected to the DI connector of ME9302 modified) ■ Lamp ■ Lamp Cable (connected to the DO connector of ME9302 modified) * For more details, please refer to the PDF materials or feel free to contact us.

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■EMI Test System MR2300 Ideal for preliminary compliance testing "Pre-compliance" for official EMI testing. This is an integrated system that combines our spectrum analyzer technology, anechoic chamber technology, and antenna technology. ■Anechoic Chamber / Shielded Box MY5410 An anechoic chamber optimal for large-scale EMI testing. It comes standard with a turntable with a diameter of 756mm and a load capacity of 100kg for large EUTs. *For more details, please refer to the PDF materials or feel free to contact us. We measured the noise emitted by the CNE (Comparative Noise Emitter), which is widely used for the calibration of anechoic chambers, using the MR2300 and the anechoic chamber, and compared the results.

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■EMI Testing System MR2300 Ideal for preliminary compliance testing "Pre-compliance" for official EMI tests. This is an integrated system that combines our spectrum analyzer technology, anechoic chamber technology, and antenna technology. ■Anechoic Chamber/Shielded Box MY5410 An anechoic chamber optimal for large-scale EMI testing. It comes standard with a turntable with a diameter of 756mm and a load capacity of 100kg, suitable for large EUTs. *For more details, please refer to the PDF document or feel free to contact us. The MR2300/MY5410 has been developed for pre-compliance use. This enables the measurement of harmonics from switching power supplies in the 40-100MHz range, which was previously difficult. Below are the measurement results obtained with the MR2300/MY5410, compared with measurements conducted in a 10m anechoic chamber equipped with equivalent facilities using the 3m method.

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■ETC/ITS Spot Electric Field Strength Measurement System ME9200 A system that measures the electric field strength distribution of ETC or ITS spots and creates electric field strength graphs and maps. It quickly measures the electric field strength distribution of ETC/ITS spots using operational waves or CW and generates electric field strength graphs or maps. ■ETC/ITS Spot Electric Field Strength Measurement System ME9200C This is an upgraded version of the ME9200. ■Multi-Wave Electric Field Strength Automatic Measurement System ME9500 An ideal system for investigating radio wave service areas and maintaining retransmission systems. It allows for high-speed measurement of electric field strength for AM radio, FM radio, business radio, VICS, etc. *For more details, please refer to the PDF document or feel free to contact us.

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■High-Speed Programmable Attenuator MAT800 Series Maximum attenuation of 80dB. A multifunctional, fully programmable feature that allows for ultra-fast control of attenuation levels. ■High-Speed Programmable Attenuator MAT810 Maximum attenuation of 60dB. A multifunctional, fully programmable feature that allows for ultra-fast control of attenuation levels. *For more details, please refer to the PDF document or feel free to contact us. The MAT800/810 has certain frequency characteristics. The attenuation varies with frequency, creating a gentle curve overall. Therefore, for the corresponding 16 frequency ranges, the MAT800 has 1600 steps of attenuation calibrated using an SG and power meter, while the MAT810 has 1200 steps. The MAT800 can set attenuation from 0dB to 80dB in 0.05dB increments with 1600 steps, and the MAT810 can set attenuation from 0dB to 60dB in 0.05dB increments with 1200 steps.

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【Product Introduction】 ■ High-Speed Programmable Attenuator MAT800 Series Maximum attenuation of 80dB. A multifunctional, fully-fledged programmable feature that allows for ultra-fast control of attenuation. ■ ETC On-Board Unit Tester ME8800Dα *For more details, please refer to the external link or feel free to contact us.

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【Product Introduction】 ■ High-Speed Programmable Attenuator MAT800 Series Maximum attenuation of 80dB. A multifunctional, fully-fledged programmable feature that allows for ultra-fast control of attenuation levels. ■ ETC On-Board Unit Tester ME8800Dα It is said that approximately 2,000 issues have occurred at ETC toll booths. These include problems such as gates not opening and counting two large trailers as one, among others. The main cause of these issues is believed to be the multipath phenomenon caused by reflections from the toll booth ceiling, adjacent gates, and water accumulated on the road surface. Therefore, we propose the following method to simulate this multipath effect.

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【Product Introduction】 ■DSRC On-Board Unit Tester ME9100 Tests whether the DSRC on-board unit installed in the vehicle communicates properly at the radio level. ■DSRC Communication Unit ME9115 Performs WCN reading of the DSRC on-board unit and measures the electric field strength of the DSRC roadside unit and the on-board unit. ■*For more details, please refer to the PDF document or feel free to contact us. 1. Signal processing of π/4 QPSK in ETC/DSRC 2. Transmission system circuit 3. Reception system circuit

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【Product Introduction】 ■ Conducted EMI Test System MR2150 A system for pre-compliance testing of conducted EMI (noise terminal voltage). By using this system for debugging evaluation before conducting the official tests at a certified EMC site, development costs can be significantly reduced. ■ Total EMI Test System MR2300 Ideal for preliminary compliance testing of official EMI tests, known as "Pre-compliance." This is an integrated system that combines our spectrum analyzer technology, anechoic chamber technology, and antenna technology. ■ EMS Test System MR2350 A pre-compliance EMS test system for radiated immunity testing (IEC/EN61000-4-3). ■ EMI+EMS Test System MR2400 Capable of conducting EMC (EMI+EMS) tests. This system combines the EMI test system MR2300 and the EMS test system MR2350. ■ *For more details, please refer to the PDF materials or feel free to contact us.

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■Conducted EMI Test System MR2150 A pre-compliance system for conducted EMI (noise terminal voltage) testing. By using this system for debugging evaluation before conducting the official tests at a certified EMC site, significant reductions in development costs can be achieved. ■Total EMI Test System MR2300 Ideal for preliminary compliance testing ("Pre-compliance") for official EMI tests. This is an integrated system that combines our spectrum analyzer technology, anechoic chamber technology, and antenna technology. ■EMS Test System MR2350 A pre-compliance EMS test system for radiated immunity testing (IEC/EN61000-4-3). *For more details, please refer to the PDF materials or feel free to contact us.

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【Product Introduction】 ■Spectrum Analyzer MSA438TG Model with Tracking Generator Measurement Frequency: 50kHz to 3.3GHz ■DTF Adapter MA430 Measures the fault location of cables and the length of normal cables. *For more details, please refer to the PDF document or feel free to contact us.

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【Product Introduction】 ■Spectrum Analyzer MSA400 Series Compact and lightweight. A full-fledged spectrum analyzer with performance and features that rival those of large bench-type models.

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In the previous installment of this series, it was revealed that in the experiment introduced, it is not the access point (AP) but the terminal side that determines the timing for executing roaming over Wi-Fi (wireless LAN). Additionally, it became clear that some terminals do not roam quickly and only change their connection to the next AP after a while following a communication interruption. 【Product Introduction】 ■ Radio Shield MY1530 ■ High-Speed Programmable Attenuator MAT810 *For more details, please refer to the PDF document or feel free to contact us.

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【Product Introduction】 ■ Step Attenuator MAT850 Manual adjustment in 0.1dB increments is possible while checking the current attenuation level. ■ Spectrum Analyzer MSA438 The most popular model in the MSA400 series - Measurement frequency: 50kHz to 3.3GHz ■ RF Shielded Box / Shield Box Taurus Series MY1520 The most versatile medium-sized model suitable for various applications. Excellent workability with a front opening. ■ RF Shielded Box / Shield Box Taurus Series MY1510 A lightweight and portable small-sized model. Offered at a very affordable price of under 200,000 yen.

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"How far can Wi-Fi (wireless LAN) communicate?" This is one of the questions frequently asked by users, but it cannot be easily answered as various conditions are involved. I have seen various news articles and reports on long-distance wireless LAN communication experiments in the past, but what left an impression on me was the story of a successful wireless LAN communication test between islands. It was surprising to hear that they achieved communication over approximately 60 km using antennas with high directionality and gain on both the receiving and transmitting sides. [Product Introduction] ■ Radio Wave Dark Box MY1530 ■ High-Speed Programmable Attenuator MAT810 *For more details, please refer to the PDF materials or feel free to contact us.

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【Product Introduction】 ■Radio Wave Dark Box / Shield Box Low price, lightweight, short delivery time! High-quality, reliable, and cost-effective radio wave dark boxes and shield boxes provided by a measurement instrument manufacturer. ■Programmable Attenuator Capable of supporting various tests and simulations in an ideal environment without chattering or spikes. ■Step Attenuator MAT850 Manual adjustment in 0.1dB increments while checking the current attenuation level. Many of today's wireless communication devices are designed with low receiving sensitivity to allow for reception over longer distances. Additionally, small wireless communication devices, including IoT devices, often have antennas mounted on the circuit board and may lack RF connectors. When conducting receiving sensitivity tests under such conditions, excessive surrounding noise can obscure the desired radio waves, making it impossible to accurately measure receiving sensitivity. To measure receiving sensitivity more accurately, we recommend using a radio wave dark box that can create a low-noise environment.

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【Product Introduction】 ■Radio Wave Absorbing Box / Shield Box Low price, lightweight, short delivery time! High quality, reliability, and excellent cost performance radio wave absorbing boxes and shield boxes provided by a measurement instrument manufacturer. ■Signal Analyzer MSA538 The most popular model in the MSA500 series - Measurement frequency: 20kHz to 3.3GHz In recent years, with the increase in electronic devices equipped with wireless communication functions, there have been more cases where engineers who have specialized in circuit design or digital design need to acquire wireless technology. In particular, there are likely many who are not accustomed to or are not proficient in dB calculations. Here, we will introduce the basic dB calculation methods for creating level diagrams of communication systems using a radio wave absorbing box.

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【Product Introduction】 ■EMI Total Testing System MR2300 Ideal for preliminary compliance testing, known as "Pre-compliance," for official EMI testing. Generally, official tests using anechoic chambers for EMI (emission) measurements require a lot of time and cost. This system allows for relative evaluations as a pre-assessment or debugging tool before conducting official tests. Since the measurements are taken in the near field, the correlation with anechoic chambers is not necessarily 'equal,' but it can be used as a guideline to determine whether noise countermeasures are sufficient (relative evaluation before and after countermeasures). Additionally, by using dedicated software (MAS430), it is possible to measure not only peak values but also QP (quasi-peak) values.

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In an office with multiple Wi-Fi access points (APs) that have the same SSID, I connected to an AP at my desk after arriving at work. After that, when I moved to the conference room, I automatically connected to the AP in the conference room without having to perform the connection operation again. This process of moving between multiple APs with the same SSID while carrying a device is called roaming. 【Product Introduction】 ■ Radio Shielding Box MY1530 ■ High-Speed Programmable Attenuator MAT810 *For more details, please refer to the PDF document or feel free to contact us.

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【Product Introduction】 ■Shielded Box / Shielding Box Taurus Series MY1520 The most versatile medium-sized model that accommodates various applications. It features a front opening, providing excellent operability. Even when using a shielded box for electromagnetic wave measurements or wireless communication tests, it is common to encounter issues such as varying measurement results each time or unstable measurement values. There are potential points for improvement regarding this issue. I will explain those points.

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【Product Introduction】 ■Radio Wave Dark Box / Shield Box Taurus Series MY1510 A lightweight and portable compact size. Offered at a very affordable price of under 200,000 yen. ■IF Module A module equipped with AC, DC, LAN, USB, SMA, BNC, N, D-sub connectors and feedthroughs. An interface (such as AC power, LAN, USB ports, etc.) for connecting devices is essential for a radio wave dark box. When choosing a radio wave dark box, one of the performance metrics is its shielding performance, and it is crucial to consider whether this performance includes the interfaces. In fact, it is not an exaggeration to say that the performance of the interface section determines the shielding performance of the radio wave dark box. This application note compares the shielding performance of MY1510 (+IFM-1) with that of other overseas products. Micronix's radio wave dark box achieves stable shielding performance even with the implementation of interfaces.

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【Product Introduction】 ■ Signal Analyzer MSA538TG Model with Tracking Generator - Measurement Frequency: 20kHz to 3.3GHz ■ Battery Lithium-ion Battery MB400 For MSA400/500 series ■ Portable Antenna Covers a frequency range of 300MHz to 6.2GHz with 9 types of antennas. When inspecting and evaluating using a radio wave dark box or shielded box, there may be a need to confirm whether the shielding performance is ensured. However, it is not practical to send it for regular calibration every time. By using a handheld spectrum/signal analyzer equipped with TG functionality and sleeve antennas, daily inspections can be easily conducted.

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【Product Introduction】 ■ Electric Turntable (Custom Product) We offer an electric turntable (table diameter 200mm, load capacity approximately 10kg, powered by AC adapter, connected to PC via RS232C cable) as an option, which can be integrated into our company's radio-shielded box. This document explains how to control the electric turntable via serial communication using terminal software on a PC.

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【Product Introduction】 ■ Signal Analyzer MSA538 Equipped with both real-time method using Fast Fourier Transform (FFT) and traditional sweeping method, allowing the utilization of the advantages of both approaches. The most popular model in the MSA500 series. - Measurement frequency: 20kHz to 3.3GHz ■ Biconical Antenna MAN150/MAN150B A wideband, compact, and lightweight antenna. The antenna converts radio waves in the air into electrical signals flowing through a cable (or converts electrical signals flowing through a cable into radio waves in the air). The conversion factor at this time is called the antenna factor. The relationship between electric field strength and voltage can be expressed using the antenna factor as follows: 1. Electric field strength (V/m) = Voltage (V) × Antenna factor (1/m) 2. Electric field strength (μV/m) = Voltage (μV) × Antenna factor (1/m)

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【Product Introduction】 ■ Signal Analyzer MSA538E Model equipped with EMI measurement function - Measurement frequency: 20kHz to 3.3GHz ■ Line Impedance Stabilization Network (LISN) MPW201B Easily build a test environment in a limited space. ■ Magnetic Field Probe CP-2SA Measures the magnetic field of patterns on printed circuit boards and device terminals. MR2150 (Spectrum/Signal Analyzer, LISN, PC Software) is a pre-compliance system for conducted EMI testing. By using this system for debugging evaluation before the official tests conducted at certified EMC sites, development costs can be significantly reduced.

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The MR2150, a pre-compliance system for conducted EMI testing using MICRONIX's EMI measurement spectrum analyzer and signal analyzer, can utilize not only the MICRONIX MPW201B as the LISN but also LISNs from other manufacturers. By using LISNs from other manufacturers, the MR2150 can be used for products with DC power supplies, three-phase power supplies, and power supplies of 250V and 15A or more. 【Product Introduction】 ■ Conducted EMI Testing System MR2150 *For more details, please refer to the PDF materials or feel free to contact us.*

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【Product Introduction】 ■Spectrum Analyzer MSA400 Series Compact and lightweight. A full-fledged spectrum analyzer with performance and features that rival those of large bench-type models. When looking at documents related to radio waves or specifications of wireless communication equipment, various units appear. Here, we will explain the units that can be set on our spectrum analyzers (MSA300/400 series) and the units used during noise measurement.

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For more details, please refer to the PDF document or feel free to contact us.

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【Product Introduction】 ■Handheld Spectrum Analyzer Compact, lightweight, battery-operated (low power consumption), and low cost. Despite being handheld, it offers performance comparable to larger models. ■Anechoic Chamber / Shielded Box Low cost, lightweight, and short delivery time! High-quality, reliable, and cost-effective anechoic chambers and shielded boxes provided by a measurement instrument manufacturer. The anechoic chamber has the following functions, allowing for accurate characteristic measurements of the DUT (Device Under Test): 1. Provides an environment unaffected by external electromagnetic waves. 2. Blocks leakage of electromagnetic waves to the outside. 3. Reduces interference within the anechoic chamber. By leveraging these characteristics and combining them with other measuring instruments and testing evaluation terminals, they can be permanently installed as production line equipment for quality inspection and functional testing of various wireless module-equipped devices (such as wireless LAN and Bluetooth).

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【Product Introduction】 ■Spectrum Analyzer MSA438 Compact and lightweight. A full-fledged spectrum analyzer with performance and features that rival large bench-type models. The most popular model in the MSA400 series. - Measurement Frequency: 50kHz to 3.3GHz By converting signals received in the 7.9 to 14.5GHz range with a parabolic antenna to low frequency using a downconverter attached to the parabolic antenna, it can measure signals in the 50kHz to 3.3GHz range with our handheld spectrum analyzers (MSA300, MSA400 series). This enables measurements while moving or observing specific satellite waves. Our handheld spectrum analyzer is compact, lightweight, and battery-operated, making it very advantageous for field measurements. In particular, the MSA400 series allows for easy management by directly writing images/received status during measurements to a USB memory stick. The product price is also reasonable, minimizing the introduction costs.

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【Product Introduction】 ■MSA500 Series Equipped with both real-time method using Fast Fourier Transform (FFT) and traditional sweep method, allowing for the utilization of the advantages of both approaches. ■Signal Analyzer MSA538 The most popular model in the MSA500 series - Measurement frequency: 20kHz to 3.3GHz ■Signal Analyzer MSA558 Covers most applications in wireless information communication with an 8.5GHz bandwidth - Measurement frequency: 20kHz to 8.5GHz

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【Product Introduction】 ■Radio Wave Dark Box / Shield Box Taurus Series MY1530 A large size that accommodates large test objects. A turntable can be installed as an option. When you stop in front of a station in the city and look up, you may see Wi-Fi (wireless LAN) antennas among various antennas on the rooftops of buildings. From what I have observed, it seems that many Wi-Fi antennas are "directional antennas" designed to transmit signals in a specific direction.

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【Product Introduction】 ■Radio Wave Dark Box MY1530 A large size that accommodates large test objects. A turntable can be installed as an option. For 802.11n and 11ac, there is a technology called channel bonding that allows multiple channels to be combined (i.e., expanding the frequency width used) to increase the communication bandwidth, as shown in Figure 1. In particular, with 802.11ac, bonding can be done over a width of 80MHz, equivalent to four channels. This results in approximately four times the communication speed compared to a 20MHz width. *For more details, please refer to the PDF document or feel free to contact us.

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