CPW-fed frequency-reconfigurable slot-loop antenna with a tunable matching network based on ferroelectric varactors

NCUIR > College of Electrical Engineering & Computer Science > Department of Electrical Engineering > journal & Dissertation > Item 987654321/106847

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106847

Title:	CPW-fed frequency-reconfigurable slot-loop antenna with a tunable matching network based on ferroelectric varactors
Authors:	傅家相;Li, Hsiao-Yun;Yeh, Che-Ting;Huang, Jun-Jie;Chang, Che-Wei;Yu, Chen-Tsung;Fu, Jia-Shiang
Contributors:	資訊電機學院電機工程學系
Keywords:	Antenna measurements;Coplanar waveguide;Feeds;ferroelectric varactor;Iron;reconfigurable;Resonant frequency;Slot antennas;slot-loop antenna;tunable matching network;Varactors
Date:	2015-01-01
Issue Date:	2026-04-23 13:46:35 (UTC+8)
Publisher:	Institute of Electrical and Electronics Engineers Inc.;IEEE
Abstract:	摘要： A frequency-reconfigurable slot-loop antenna with a tunable matching network (TMN) is designed, fabricated, and measured. The frequency-reconfigurable antenna is designed by loading ferroelectric (FE) varactors along a slot loop. The varactor-loaded slot-loop antenna is fed using a coplanar waveguide (CPW) line rather than a microstrip line to preserve the advantage of being uniplanar. However, because it is more difficult to achieve a good matching over wide bandwidth with a direct CPW feed, we propose to add a TMN. It is found that the TMN can be realized using a series varactor, which does not increase the size of the antenna. Measurement results show that by adjusting the bias of the FE varactors from 0 to 15 V, the operating frequency of the antenna can be tuned from 6.71 to 9.14 GHz, translating into a 30.6% frequency tuning range (FTR). At 6.71 GHz, the size of the slot loop is 0.056 λ 0 ×0.056λ 0 . When biased at 15 V, the antenna gain is -3.1 dBi. Over the entire FTR, the return loss is greater than 20 dB, demonstrating the effectiveness of the tunable matching technique. 其他題名： LAWP 出版者： IEEE 出版日期： 2015 出處： IEEE antennas and wireless propagation letters, 2015, Vol.14, p.614-617 資源來源： IEEE Electronic Library (IEL) 識別號： ISSN: 1536-1225 識別號： EISSN: 1548-5757 識別號： DOI: 10.1109/LAWP.2014.2375334 識別號： CODEN: IAWPA7
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	14	View/Open

社群 sharing

Loading...