用于2.4 GHz ISM波段应用的单端和差分无源射频阻抗调谐器

2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2019-08-01 DOI:10.1109/MWSCAS.2019.8884805

Ram Krishna, Abhishek Kumar, S. Aniruddhan

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引用次数: 2

摘要

本文设计了两种工作在2.4 GHz和2.5 GHz之间的电子可调谐无源射频阻抗调谐器。对两pi级联匹配网络在提高负载电压驻波比(VSWR)覆盖率方面的作用进行了理论分析和仿真。将优化后的单端匹配网络转化为微分结构，提高了网络的线性度。基于该理论的阻抗调谐器都是在两层FR4 PCB上制作的。测试了所制备的单端调谐器负载阻抗变化至VSWR≤9.5，其中插入损耗保持在0.4 dB和5.1 dB之间。差分网络测试负载阻抗高达VSWR≤6，其中插入损耗在0.6 dB和6.1 dB之间。差分和单端网络的IIP3分别为37.4 dBm和34.2 dBm。

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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Single Ended and Differential Passive RF Impedance Tuners for 2.4 GHz ISM Band Applications

This paper presents the design of two electronically tunable passive RF impedance tuners operating between 2.4 GHz and 2.5 GHz. Theoretical analysis and simulation were performed on two pi matching networks in cascade which helped in increasing the load voltage standing wave ratio (VSWR) coverage. The linearity of the optimized single ended matching network was improved by converting it into a differential structure. Both the impedance tuners based on this theory were fabricated on a two layered FR4 PCB. The fabricated single ended tuner was tested for load impedance variation up to VSWR ≤ 9.5 wherein insertion loss stayed between 0.4 dB and 5.1 dB. The differential network was tested for load impedances up to VSWR ≤ 6 wherein an insertion loss between 0.6 dB and 6.1 dB was obtained. The measured IIP3 of the differential and single ended networks were 37.4 dBm and 34.2 dBm respectively.

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来源期刊

2019 IEEE 62nd International Midwest Symposium on Circuits and Systems (MWSCAS)

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