Ku waveband coaxial-to-rectangular waveguide transition converter

Abstract

The invention discloses a Ku waveband tail end emitter coaxial-to-rectangular waveguide transition converter. According to the Ku waveband tail end emitter coaxial-to-rectangular waveguide transitionconverter, a non-standard waveguide port is adopted to realize transverse miniaturization; a first conversion module and a second conversion module are designed between a coaxial line and a waveguide,so that low-level return loss can be realized; the first conversion module converts the TEM mode of the coaxial line into the TEM mode of a square coaxial line; and the second conversion module enables the TEM mode in the square coaxial line to be orderly converted into a TE10 mode. With the Ku waveband tail end emitter coaxial-to-rectangular waveguide transition converter of the invention adopted, transverse miniaturization is realized; and the low-level return loss is realized in the process of converting a coaxial mode into a waveguide dominant mode in a broadband. The Ku waveband tail endemitter coaxial-to-rectangular waveguide transition converter has the advantages of low product production cost, easiness in processing, manufacture, and the like. The converter can be produced in batches.

Description

technical field [0001] The invention belongs to the technology of the passive microwave adapter, and in particular relates to a converter for Ku-band coaxial to rectangular waveguide transition. Background technique [0002] In a microwave system, there are usually many different types of transmission lines, such as microstrip lines, coaxial lines, waveguides, etc., which results in the need to connect conversion components for transmission between different transmission lines. Among them, the transition from coaxial to waveguide has been widely used in radar systems, satellite communication interference and anti-interference, and test equipment. As the operating frequency range becomes wider and wider, the bandwidth of the adapter needs higher requirements accordingly. Compared with the rectangular waveguide, the ridge waveguide has a higher frequency application range and is more suitable for various broadband systems. [0003] At present, the widely used waveguide coaxi...

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Problems solved by technology

However, energy can only propagate in one direction in this way. For better impedance matching, the probe head needs to have a gradual change in size. However, when the shape of the probe is irregular, its surface current distribution is not easy to solve.

In addition, because the coaxial connector and the waveguide are at 90 degrees, it is inconvenient to cascade, and when the transmission power is large, the top of the probe is prone to breakdown

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