JSSC 2024第5期Other45-nm RF SOI

A Low-Loss Passive D-Band Phase Shifter for Calibration-Free Precise Phase Contr

提出一种用于D波段的低损耗无源移相器，实现无需校准的精确相位控制。

140 GHz, 5-bit, 11.25° steps, 360° tuning range, 11.5 ± 0.8 dB insertion loss, 1.2° rms phase error, >12.9 dBm IP1dB

低损耗无源移相器D波段无需校准精确相位控制

▸采用类似长号的结构通过控制传播距离来操纵时间延迟

▸仅使用一个切换信号转换实现所有相位状态，显著降低插入损耗

▸保持相位状态间损耗变化小

Abstract

A low-loss passive phase shifter is presented for calibration-free, precise phase control at D-band. The proposed topology manipulates time delay by controlling propagation distance in a trombone-like structure formed with two parallel transmission lines periodically connected via switch networks. The proposed phase control exploits only one switched signal transition for all phase states, significantly lowering insertion loss and keeping loss variation small over phase states. A detailed analys