Miniaturized ultra-wideband phase shifter

• Main Authors: ZHANG TIANYU, WANG WEIBO, HAN QUNFEI
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

The invention discloses a miniaturized ultra-wideband phase shifter, which is based on a magnetic coupling all-pass filtering structure, and achieves the purpose of controlling phase shift by utilizing a switching network to control the sizes of a coupling inductor and a series-parallel capacitor which are connected into a circuit part. According to the phase shifter, a switch fusion type one-way structure is adopted, a reference state and a phase shifting state share a part of circuit, the circuit area can be effectively reduced while a large phase shifting angle is achieved, and meanwhile the ultra-wideband phase shifting bandwidth and high phase shifting precision are kept. 本发明公开了一种小型化的超宽带移相器，基于磁耦合全通滤波结构，利用开关网络控制接入电路部分的耦合电感和串并联电容大小，达到控制相移的目的；本发明的移相器采用开关融合式的一路式结构，参考态和移相态共用一部分电路，在实现较大移相角度的同时，可有效缩减电路面积，同时保持超宽带的移相带宽和高移相精度。