ORIGINAL RESEARCH article
Front. Electron.
Sec. Integrated Circuits and VLSI
Volume 6 - 2025 | doi: 10.3389/felec.2025.1523544
Design and realization of 3 dB offset coupled stripline coupler in 6 -18 GHz
Provisionally accepted
- 1Inner Mongolia University, Hohhot, China
- 2Shenzhen Technology University, Shenzhen, Guangdong, China
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In this paper, an ultra-wideband (UWB) 3 dB coupler is designed. It is based on the offset coupled stripline technique with a symmetric structure of the multi-section coupler. Utilization of capacitive compensation technology. It achieves a working bandwidth covering 6 -18 GHz. The experimental results of this coupler show that return loss of all ports is less than -10 dB, and the relative phase difference is 90 ± 6˚. The designed coupler was simulated, processed and measured. The measured results are found to be essentially consistent with the simulated results.
Keywords: Capacitive compensation, directional coupler, offset coupled stripline, 'T' structure capacitor, wideband. (Min.5-Max. 8
Received: 05 Dec 2024; Accepted: 15 Jul 2025.
Copyright: © 2025 WanYi, Feng and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Linping Feng, Shenzhen Technology University, Shenzhen, 518118, Guangdong, China
Yongliang Zhang, Inner Mongolia University, Hohhot, China
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