Microwave Switch

Introduction

The microwave switch, also known as the RF switch, controls the conversion of the microwave signal channel. An RF (radio frequency) is a device that routes high-frequency signals through a transmission path. RF switches are widely used in microwave test systems for signal routing between instruments and DUTs. By combining switches into a switch matrix system, signals from multiple instruments can be routed to a single or multiple DUTs.

Principle

A microwave inductive switch is a mobile object detector designed by using the principle of the Doppler effect. It detects whether the position of the object moves in a non-contact way, and then generates the corresponding switch operation. This product has a strong anti-RF interference ability and is not affected by temperature, humidity, light, airflow, dust, etc. It can be installed in a certain thickness of plastic, glass, wood, and other non-metallic shells without affecting its detection function technology. It can be very convenient to apply equipment control, environmental auxiliary light source control, underground parking lot, passage lighting, and other fields.

Function

The microwave switch utilizes the PIN tube to present approximately on or off impedance characteristics under DC positive and reverse bias voltages, and realizes the conversion of the control microwave signal channel.

The DC volt-ampere characteristics of PIN diodes are the same as those of PN junction diodes, but there are fundamental differences in the microwave frequency band. Since the total charge of the I layer of the PIN diode is mainly generated by the bias current rather than the instantaneous value of the microwave current, it only presents a linear resistance to the microwave signal. This resistance value is determined by the DC bias, the resistance value is small when forward biased, close to a short circuit, and the resistance value is large when reverse biased, close to an open circuit.

Therefore, PIN diodes do not have nonlinear rectification effects on microwave signals, which is fundamentally different from general diodes, so they are very suitable for microwave control devices.

Main features

1. Intelligent detection: if someone enters the sensing range of the radar inductive switch, the microwave detector will work, and the light will automatically turn on when people come. If people leave the sensing range, the light will automatically delay closing. It can automatically identify day and night.

2. All LED lamps within the control power range can be modified.

3. Intelligent delay: after the switch senses human activity, it will automatically delay for a cycle, starting from the delay time of the last human activity.

4. Working mode: After the induction switch is connected, if there is human activity during the delay period, the switch will continue to open until the person leaves and the time is extended.

5. Sensitization adjustment: control whether the switch works according to the external lighting it, so as to achieve the energy-saving effect.

6. Small size, no need to expose the inductive probe, can be embedded in the lamp, without affecting the appearance of the lamp.

7. Compared with infrared products: the microwave induction switch has a longer detection distance, a wider angle, no dead zone, and can penetrate glass and thin wood. Depending on the power, it can penetrate walls with different thicknesses and is not affected by the environment, temperature, dust, etc. The detection distance will not be shortened to 37 degrees. A microwave inductive switch is an ideal substitute for the infrared switch.

Application
Scope of application of microwave switch: corridors, corridors, toilets, basements, garages, warehouses, and other places requiring automatic lighting. The use of microwave induction switch products is not only more high-grade and tasteful in life, but also more energy-saving and environmental protection.

Testing equipment

Our microwave measurement capability makes us the best choice for the design and manufacturing of your components.

Certificate

We implement TQM (Total Quality System) and SOP (Standard Operation Procedure) with ISO 9001:2017 certification, which assures a strong commitment to quality standards and customer satisfaction.

Delivery

We will send the goods to you by DHL, FEDEX, UPS, EMS, AIR, etc. Usually 7-15 working days after receiving your 100% payment. For bulk orders: 15-35 working days after receiving the deposit.

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