Compact suspended microstrip high-isolation multi-power combiner

Abstract

The invention relates to a compact suspended microstrip high-isolation multi-power combiner. The compact suspended microstrip high-isolation multi-power combiner is composed of a suspended microstrippower dividing / combining circuit, a microstrip or suspended microstrip isolation circuit and connection coaxial cables; the suspended microstrip power dividing / combining circuit is composed of input ports, an output port, a dielectric substrate, metal microstrips, an upper grounding metal plate and a lower grounding metal plate; the isolation circuit adopts star connection, and an isolation resistor is installed on the isolation circuit; the suspended microstrip power dividing circuit achieves power allocation and input / output impedance matching; and the isolation circuit achieves good outputVSWR and isolation among the ports. The compact suspended microstrip high-isolation multi-power combiner has the advantages of being low in insertion loss, good in input / output echo, high in power capacity and isolation, wide in bandwidth, small in circuit size and the like, can be applied into various high-power microwave and millimeter wave systems and has the wide application prospect in systems of communication, radar, measurement and control and the like.

Description

Technical field [0001] The invention belongs to the technical field of wireless communication systems, and relates to a compact suspended microstrip high isolation multi-channel power combiner. Background technique [0002] With the development of wireless communication technology, power distribution / combiner, as an important circuit, is widely used in electronic systems, especially array antennas and radar systems. In high-power microwave and millimeter-wave systems, due to the limited output power of a single solid-state device, which cannot meet high-power requirements, a power combiner is usually used to combine multiple small signals to obtain a sufficiently high output signal. In this solution, the performance of the power distribution / combiner has an important impact on the performance of the entire power combining system. The main indicators of the power combiner are: insertion loss, input / output return loss, power capacity, output port isolation, bandwidth, overall size...

AI Technical Summary

Problems solved by technology

However, limited by the design technology and manufacturing process, it is usually difficult to meet all the above indicators. Therefore, the development of high-power microwave and millimeter-wave systems is restricted

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