A Compact Ka-Band Variable Gain Phase Shifter With Bi-Directional Phase Inverting Amplifier

IF 4 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems II: Express Briefs Pub Date : 2024-10-15 DOI:10.1109/TCSII.2024.3481069

Juwon Kim;Youngjoo Lee;Byung-Wook Min

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引用次数: 0

Abstract

This brief presents a compact Ka-band bi-directional variable gain phase shifter (BVGPS) using 28-nm CMOS technology. The BVGPS consists of a phase inverting bi-directional variable gain amplifier (PI-BVGA) and 3-bit switched-delay type phase shifter (STPS). The proposed PI-BVGA is implemented with a current cancelling topology for a low phase variation over a gain control range. The PI-BVGA can operate bi-directionally and provide 180° phase shift. Therefore, comparing the conventional BVGPS, this BVGPS achieves a high gain with the compact size since 180° phase shifter and single-pole double-throw (SPDT) switches are eliminated. The average rms phase error over the 16 dB gain control is 1.1° and measured rms phase and gain errors of 16 different phase states are 8.3° and 0.74 dB, respectively, at the center frequency. The maximum gain of the BVGPS is

$0.7{\pm }1$

.3 dB in the 16 different phase states with a power consumption of 40 mW. The BVGPS occupies 0.21 mm2, excluding the pads.

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一种带双向反相放大器的小型ka波段可变增益移相器

本文介绍了一种采用28纳米CMOS技术的紧凑型ka波段双向可变增益移相器（BVGPS）。BVGPS由一个反相双向可变增益放大器（PI-BVGA）和3位开关延迟型移相器（STPS）组成。所提出的PI-BVGA采用电流抵消拓扑来实现在增益控制范围内的低相位变化。PI-BVGA可以双向工作，并提供180°相移。因此，与传统的BVGPS相比，由于消除了180°移相器和单极双掷（SPDT）开关，该BVGPS实现了高增益和紧凑的尺寸。在中心频率处，16 dB增益控制下的平均均方根相位误差为1.1°，16种不同相位状态下的测量均方根相位误差和增益误差分别为8.3°和0.74 dB。在16种不同相态下，BVGPS的最大增益为$0.7{\pm}1$ 0.3 dB，功耗为40 mW。BVGPS占地0.21 mm2，不包括pad。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Circuits and Systems II: Express Briefs 工程技术-工程：电子与电气

CiteScore

7.90

自引率

20.50%

发文量

883

审稿时长

3.0 months

期刊介绍： TCAS II publishes brief papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: Circuits: Analog, Digital and Mixed Signal Circuits and Systems Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic Circuits and Systems, Power Electronics and Systems Software for Analog-and-Logic Circuits and Systems Control aspects of Circuits and Systems.