Broadband and Compact Tunable Reflection-Type Phase Shifter Based on Microstrip Slotline Coupler

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-06-13 DOI:10.1002/mop.70255

Jianyu Ye, Jianbo Wang, Guang Hua

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引用次数: 0

Abstract

This paper presents a broadband and compact $36 0^{\circ}$ tunable reflection-type phase shifter based on microstrip slotline coupler. The phase shifter consists of a microstrip slotline 3 dB coupler, along with two identical reflected loads made of variable capacitors and high-impedance transmission lines shorter than a quarter wavelength. This structure increases the bandwidth of reflection-type phase shifter and reduces the maximum insertion loss and the fluctuation of insertion loss. The measured return loss of the phase shifter shows a 47.2% bandwidth better than 10 dB, with center frequency insertion loss of 1.0∼2.7 dB and a maximum phase shift of ${386.3}^{\circ}$ . The phase shifter occupies an area of $0.2 λ_{g} \times 0.4 λ_{g}$ at 3.6 GHz.

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基于微带槽线耦合器的宽带紧凑型可调谐反射型移相器

本文提出了一种基于微带槽线耦合器的宽带、紧凑的36°$36{0}^{\circ}$可调谐反射式移相器。移相器包括一个微带槽线3db耦合器，以及由可变电容器和短于四分之一波长的高阻抗传输线组成的两个相同反射负载。这种结构增加了反射式移相器的带宽，减小了最大插入损耗和插入损耗的波动。测得的移相器回波损耗显示出47.2%的带宽优于10 dB，中心频率插入损耗为1.0 ~ 2.7 dB，最大相移为386.3°${386.3}^{\circ}$。移相器的面积为0.2 λ g × 0.4 λ g$0.2{\lambda}_{g}\乘以0.4{\lambda}_{g}$在3.6 GHz。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication