Compact CRLH asymmetric-CPS resonant antenna with frequency agility

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Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/106759

Title:	Compact CRLH asymmetric-CPS resonant antenna with frequency agility
Authors:	歐陽良昱;Chiu, Shih-Chia;Yang, Liang-Yu Ou;Lai, Chien-Pai;Chen, Shih-Yuan
Contributors:	資訊電機學院電機工程學系
Keywords:	Antenna measurements;Antennas;Applied sciences;Asymmetry;Band gap;Bias;Capacitance;Capacitors;composite right/left-handed transmission lines (CRLH TLs);coplanar strips;Electric potential;Exact sciences and technology;Frequency ranges;Impedance;Photonic band gap;Radiocommunications;Resonant frequencies;Resonant frequency;Telecommunications;Telecommunications and information theory;Ultrasonic technology;Voltage
Date:	2014-01-01
Issue Date:	2026-04-23 13:41:30 (UTC+8)
Publisher:	Institute of Electrical and Electronics Engineers Inc.;New York, NY: IEEE
Abstract:	摘要： A compact, uniplanar composite right/left-handed transmission line (CRLH TL) resonant antenna with frequency agility is proposed based on the asymmetric coplanar strip (ACPS). First, it is shown that a capacitor as the termination for an unbalanced CRLH ACPS is needed for excitation of an anti-resonance within the frequency range between the zeroth-order series and shunt resonances. The design formula to estimate the value of the termination capacitance for a given resonant frequency is derived as well. By utilizing a varactor diode as the termination, the termination capacitance can be controlled by changing its bias voltage, and the resonance of the antenna can thus be tuned between the two zeroth-order resonant frequencies. For verification, a prototype antenna was fabricated and tested. It has a continuously tunable resonant frequency between 2.15 GHz and 2.8 GHz as the bias voltage is adjusted in between 4 V and 22 V. When tuned to resonate at different frequencies in between the two zeroth-order resonances, the antenna still exhibits similar slot-like radiation pattern and stable peak gain and radiation efficiency owing to the same resonant mechanism in the frequency range. 其他題名： TAP 出版者： New York, NY: IEEE 出版日期： 2014-02-01 出處： IEEE transactions on antennas and propagation, 2014-02, Vol.62 (2), p.527-534 資源來源： IEEE Xplore Digital Library (LUT) 版權： 2015 INIST-CNRS 版權： Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) Feb 2014 識別號： ISSN: 0018-926X 識別號： EISSN: 1558-2221 識別號： DOI: 10.1109/TAP.2013.2289312 識別號： CODEN: IETPAK
Appears in Collections:	[Department of Electrical Engineering] journal & Dissertation

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