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Title: A compact and low-profile tunable loop antenna integrated with inductors
Authors: Lee, Dong Hyun
Chauraya, Alford
Vardaxoglou, J.C.
Park, Wee Sang
Keywords: Compact antenna
Frequency tunable antenna
Loop antenna
Issue Date: 2008
Publisher: © IEEE
Citation: LEE, D.H....et al., 2008. A compact and low-profile tunable loop antenna integrated with inductors. IEEE Antennas and Wireless Propagation Letters, 7 pp. 621 - 624
Abstract: We present a frequency-tunable, compact loop antenna which consists of a transmission line on a ground plane, two shorting posts, and two inductors which are serially connected between the posts and the edge of the transmission line. By properly choosing the inductance of the inductors, the operating frequency of the antenna can be controlled without seriously sacrificing fractional bandwidth. To demonstrate the operating mechanism, the equivalent circuit of this antenna is included. The characteristics of the antenna with various inductors integrated are also investigated. Fabricated antennas show that the operating frequency can be shifted from 2.07 GHz to 1.2 GHz using off-the-shelf inductors. Using two 33-nH inductors achieves an antenna with an electrical size as small as 0.118lambda times 0.013lambda times 0.047lambda. The validity of this antenna is demonstrated by experimental results.
Description: Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Version: Published
DOI: 10.1109/LAWP.2008.2001028
URI: https://dspace.lboro.ac.uk/2134/9453
Publisher Link: http://dx.doi.org/10.1109/LAWP.2008.2001028
ISSN: 1536-1225
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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