Multi-channel power-combining mapping network design method
By adopting Wilkinson's power splitter and differential structure based on LC equivalent in the multi-channel power-combination mapping network, the problems of large power consumption, large return loss, low isolation and large insertion loss during multi-channel synthesis in the multi-beam phase control chip are solved, and a design of high isolation, low insertion loss and zero power consumption is realized, meeting the needs of high channel capacity and integration.
Patent Information
- Application Number
- CN202411900905.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-03-28
AI Technical Summary
In multi-beam phase control chips, the power consumption is large, the return loss is large, the isolation is low and the insertion loss is large during multi-channel synthesis, making it difficult to meet the needs of high channel capacity and integration.
Using the Wilkinson power splitter based on LC equivalent as the basic power synthesis unit, the minimalist on-chip transmission line and cross-jump line equivalent model is designed, and the differential structure and amplitude phase balance structure are adopted to optimize simulation and iterative design to achieve a multi-channel power combined mapping network with high isolation and low insertion loss.
VSWR<1.34, insertion loss<2.5dB, isolation>22dB, amplitude error<0.1dB, and phase error<1.5° are achieved, which meets the requirements of multi-beam phase control chips, and adopts pure passive synthesis method, with a power consumption of 0.