Loss Optimization Method for Broadband Multiplexer Power Divider Based on Hierarchical Design

Abstract

The invention provides a broadband multipath power divider loss optimization method based on hierarchical design. The method comprises an even mode circuit design step and an odd mode circuit design step, wherein during odd mode circuit design, setting the number of basic power division unit isolation resistors close to branch ports; then, removing isolation resistors of each stage of basic power division unit close to a total port thereof stage by stage, and merging impedance transformation sections having no isolation resistors to a combined path; and finally, calculating resistance of all isolation resistors through an odd-mode analysis method. The method simplifies design of most of basic power division units, thereby saving manpower resources in design of a complex power division network; and an adopted networking mode is simple and feasible, and can be applied to an isolation shunt-fed power division network formed by different types of basic power division units and based on different transmission line types.

Description

technical field [0001] The invention belongs to the field of microwaves and antennas, and in particular relates to a method for optimizing the loss of a broadband multi-path power divider based on hierarchical design. Background technique [0002] The power divider is an indispensable part in the microwave receiving, transmitting and frequency synthesis system. Whether it is microwave communication, radar, remote sensing, electronic reconnaissance, electronic countermeasures or microwave measurement system, there is a need to distribute signals according to a certain power ratio , this method of distributing signals into multiple channels and then processing them separately is a very common application. With the rapid development of my country's military equipment, in modern radar, microwave measurement and electronic countermeasure systems, in order to improve the adaptability of equipment and multi-signal capture capabilities, broadband systems are often used as system sol...

AI Technical Summary

Problems solved by technology

However, the design of the above methods is relatively complicated, especially in the multi-channel power distribution network, due to the huge number of basic power division units with different power division ratios, the design difficulty is greatly increased

Recently, stepwise impedance transformation is applied to the even-mode equivalent circuit of the entire network, which improves the effective bandwidth of the combined standing wave, but the effective bandwidth of the split standing wave has not been significantly improved, and the number of transformation nodes increases with the number of channels. Rapidly growing, increasing design complexity

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