A microwave passive device with reconfigurable functions and performance

By designing microwave passive devices with reconfigurable functions and performance, and using a combination of E-type microstrip patches and PIN/varicap diodes, the simultaneous reconstruction of the functions and performance of microwave devices is achieved, which improves the multiplexing rate and function switching speed, and solves the problems of singleness and poor performance of existing microwave devices.

CN116632478BActive Publication Date: 2025-09-19HEFEI UNIV OF TECH
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Patent Information

Application Number
CN202310487867.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-04
Publication Date
2025-09-19
Estimated Expiration
2043-07-04

AI Technical Summary

Technical Problem

Existing microwave devices have single functions and lack research on simultaneous reconstruction of functions and performance. They have low reuse rates, slow function switching speeds, and poor performance.

Method used

A microwave passive device with reconfigurable functions and performance is designed. The device adopts a three-layer structure including a microstrip structure layer, a dielectric layer and a metal ground plane. An E-type microstrip patch, a microstrip line, a PIN diode and a varactor diode are used to form a microwave tunable patch-coupled antenna, a cross-coupled microstrip bandpass filter and a directional coupler. The function and performance can be reconfigured by controlling the state of the PIN diode and the varactor diode.

Benefits of technology

The functional reconfiguration of three microwave passive components was achieved, and performance was reconfigured based on the functional reconfiguration, with a reuse rate of over 90%. The frequency and coupling degree were adjusted by adjusting the capacitance value of the varactor diode.

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Abstract

The present invention relates to a microwave passive device with reconfigurable functions and performance, belonging to the field of reconfigurable circuit technology. It comprises three layers of sequentially connected microstrip structure layers, dielectric layers and metal ground planes; two E-type microstrip patches, twelve microstrip lines, six PIN diodes, one varactor diode and four ports are centrally symmetrically arranged on the microstrip structure layer, which respectively constitute a microwave-tunable microstrip patch coupled antenna, a microwave-tunable cross-coupled microstrip bandpass filter and a microwave-tunable directional coupler. By adjusting the capacitance of the varactor diode, the frequency adjustment of the antenna, the frequency adjustment of the filter and the coupling degree adjustment of the coupler are achieved, and the performance of the microwave passive device can be reconfigured. This microwave passive device with reconfigurable functions and performance has a simple structure, a high structural reuse rate, a wide range of applications, and a high degree of integration. Functions can be quickly switched, performance can be quickly adjusted, and independent operation can be achieved without affecting each other.
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