Impedance Converter

Introduction

Impedance converter, resistive impedance converter or minimum loss impedance converter are RF components with the same function. These components solve the relatively common problems in the application of some equipment, components and equipment with different standard impedance.

When the load impedance is not equal to the characteristic impedance of the transmission line, or when two transmission lines with different characteristic impedance are connected, reflection will occur. In addition to using the above impedance regulator to achieve impedance matching, audio impedance converter can also be used to achieve matching. As long as one or more transmission lines are inserted between two transmission lines to be matched, the transformation between different impedances can be completed to obtain good matching, so it is called impedance converter.

Main principles

When the load of microwave transmission lines does not match, or transmission lines with different characteristic impedances are connected, the loss increases, power capacity decreases, and efficiency decreases due to reflection. To solve these problems, an high to low impedance converter can be connected between them. High impedance to low impedance converter is a microwave element that can change the size and nature of impedance. It is generally composed of one or several transmission lines with different characteristic impedance.

Classification

The type of impedance converter can be divided in different ways

●By structure:

Coaxial impedance converter

Rectangular waveguide impedance converter

Strip line and microstrip line impedance converter

●According to the law of impedance transformation:

Stepped impedance converter

Maximum flat type

Chebyshev type

Gradual impedance converter

Effect

The function of impedance converter is to solve the matching between microwave transmission lines and microwave devices. In RF circuits, problems such as the connection of different transmission lines, the connection between different components, and the connection between antenna and feeder are often encountered. In general, the impedance of the coaxial transmission line is 75 ohms, while the input and output impedance of the polarization separator and channel filter connected to the feeder line is 50 ohms. Therefore, it is necessary to insert impedance converters between connection points to achieve impedance matching and ensure power transmission without reflection.

Shipping

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.

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.

Our service

●Service standards: We are committed to providing a high-quality and responsive service to all clients.

●OEM: Available for waveguide series.

●Stable quality: Implement the whole process of quality control, meticulous and strict inspection!

●Reasonable price: Internal cost control, reducing expenses, benefiting customers!

●Professional selection: More than 5 years of professional engineer selection, to provide you with alternative models of each factory, system solutions.

●Fast delivery: Adequate stocking, shortened delivery time!

●Door-to-door service: We usually send the parcel by DHL, EMS, TNT, etc. The tracking number will be sent to you after delivery. It usually takes 3~5working days to reach from our side to your side, which is very convenient for your business.

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