Passive devices are an extremely important branch in the development of microwave technology, including filters, duplexers/multiplexers, power dividers/combiners, directional couplers, phase shifters, and orthogonal mode couplers (OMT), rotary joints, coaxial waveguide converters, loads, etc.

Our company can professionally design various microwave passive components:

Frequency range:  0.1~ 50GHz;

Structural form:  coaxial type, waveguide type, stripline type, microstrip type, fin type, cavity type, Lumped/distributed, etc.

Our passive devices have been widely used in aerospace, navigation, radar, electronic countermeasures and satellite communications.

Filter

The role of filter is to filter out unnecessary radio frequency signals, while ensuring good passband characteristics. There are a wide variety of filters with different performances, and our company can quickly customize them according to the specific requirements of users:

Frequency range:  0.1~ 50GHz;

Function:  low-pass, high-pass, band-pass, band-stop;

Structural form:  waveguide type, cavity type, microstrip type, interdigital type, comb type, coaxial cavity type, Lumped/distributed, etc.;

Usage scenarios:  aerospace, navigation, radar, electronic countermeasures and satellite communications, etc.

Filters with special requirements can be designed, such as:

high altitude filter;

Ultra-high suppression filter;

ultra-wideband filter;

Ultra-narrowband filter;

TE01 mode low loss filter;

One-cavity multi-mode filter, etc.;

high power filter;

Linear phase filters, etc.

Duplexer/Multiplexer

        Duplexer used for combines two or more signals with different frequencies, and it often used in microwave communication systems that transmit and receive bidirectionally. The main function of the multiplexer is to divide the wideband signal into several narrowband signals. Our company can provide various duplexers/multiplexers according to user requirements:

Frequency range:  0.1~50GHz

Structural form:  waveguide type, coaxial cavity type, microstrip type, interdigital type, lumped element type, etc.

Usage scenarios:  aerospace, navigation, radar, electronic countermeasures and satellite communications, etc.

Splitters/Combiner

The power divider/combiner is an important microwave passive device. The function of the power divider is to divide the input microwave energy into equal or unequal multiple energy outputs. The function of the combiner is opposite to that of the power divider, which is to combine the equal or unequal multi-channel signal energy into one output. Various types of power dividers/combiners can be quickly developed according to user needs:

Frequency range:  0.1~100GHz (terahertz band);

Function:  equal division, non-equal division;

Number of branches:  2~128 (a higher number of branches can be developed);

Structural form:  waveguide type, microstrip line type, strip line type, etc.

Usage scenarios:  aerospace, navigation, radar, electronic countermeasures and satellite communications, etc.

Power dividers/combiners can be designed with special requirements, such as:

High power splitter/combiner;

Ultra-wideband power divider/combiner;

Large-scale array antenna feed network power divider/combiner, etc.

Rotary joint

Waveguide rotary joints are often used as rotating components in antenna-feed systems. Various types of waveguide rotary joints with stable structure, small volume, low insertion loss can be quickly designed according to user needs:

Frequency range:  4~40GHz;

Structural form:  straight, L-shaped, U-shaped, etc.

Orthogonal Mode Coupler(OMT)

OMT is also known as an orthogonal mode coupler. The main function is to realize the duplex transmission of orthogonal modes in the antenna-feed system. It is a key component in the antenna-feed system and is widely used in various linear polarization, circular in a polarized antenna-feed system, the quality of its indicators directly affects the performance of the entire system. Various types of OMT can be quickly designed according to user needs:

Frequency range:  3~40GHz;

Structural form:  waveguide type, coaxial line type, etc.

Coaxial waveguide converter

Coaxial waveguide converter is a commonly used microwave device. Its function is to convert the type of waveguide transmission line and coaxial transmission line. Various coaxial transmission lines with great VSWR, low insertion loss, wide operating frequency bandwidth and compact structure can be quickly designed according to user needs. Waveguide Converter:

Frequency range:  3~40GHz.

Load

 Matching load is a commonly used single-port passive device, its function is to absorb microwave energy. According to user requirements, each band waveguide matching load with great VSWR, wide operating frequency bandwidth and compact structure can be quickly designed:

Frequency range:  1~40GHz.

Structure type:  rectangular waveguide, circular waveguide.

Phase shifter

 A phase shifter is a microwave passive device that produces a certain phase difference between two signals or two states of a signal. It includes fixed phase shifters, digital phase shifters, adjustable phase shifters, etc. Among the phasers, the 90º phase shifter is often used as a circular polarizer for linearly polarized wave/circular polarized wave conversion, and is a very important microwave passive device; the 180º phase shifter is often used as a polarization tracker in satellite communications. In the communication-in-motion system. The adjustable phase shifter is often used to compensate the phase difference between the two signals in the microwave communication system. It can be quickly designed according to user requirements with low VSWR, low insertion loss, operating frequency bandwidth, small phase fluctuation, and compact structure. The various phase shifters:

Frequency range:  4~40GHz.

Structural type:  rectangular waveguide, circular waveguide, microstrip line, coaxial line, fin line, stripline, etc.