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...

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Problems solved by technology

However, limited by the design technology and manufacturing process, it is usually difficult to meet all the

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