Non-foster microwave circuit design for wide band active impedance matching operation

IF 3.2 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-07-20 DOI:10.1016/j.aeue.2025.155954

Caner Murat , Adnan Kaya , Merih Palandoken

引用次数: 0

Abstract

In this research, a novel negative capacitance circuit was developed to augment the frequency bandwidth of unmatched antennas. Optimization of the transmission line and DC feeding line design parameters was carried out to ensure efficient signal transmission and minimal loss, with a transmission line width of 2.96 mm achieving a 50 Ω characteristic impedance at 2.45 GHz. Validation of the Negative Impedance Converter (NIC) circuit’s performance was achieved through experimental and simulation results, demonstrating negative capacitance within the frequency ranges of 2.47–2.62 GHz and 2.77–2.93 GHz. The proposed negative capacitance matching circuit significantly enhanced the operational frequency bandwidth of the antennas by 220 %, compared to conventional open stub matching methods, presenting an effective solution for bandwidth improvement in antenna design.

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宽带有源阻抗匹配操作的非培养微波电路设计

在本研究中，开发了一种新的负电容电路来增加非匹配天线的频率带宽。对传输线和直流馈线的设计参数进行了优化，以保证高效的信号传输和最小的损耗，传输线宽度为2.96 mm，在2.45 GHz时实现了50 Ω的特性阻抗。通过实验和仿真结果验证了负阻抗转换器（NIC）电路的性能，在2.47 ~ 2.62 GHz和2.77 ~ 2.93 GHz频率范围内显示了负电容。与传统的开存根匹配方法相比，所提出的负电容匹配电路使天线的工作频率带宽提高了220%，为天线设计中的带宽提高提供了有效的解决方案。

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

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.