Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/137840
Title: 2-18 GHz conformal low-profile log-periodic array on a cylindrical conductor
Authors: Chen, Qiaoyu
Hu, Zhenxin
Shen, Zhongxiang
Wu, Wen
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2017
Source: Chen, Q., Hu, Z., Shen, Z., & Wu, W. (2018). 2–18 GHz conformal low-profile log-periodic array on a cylindrical conductor. IEEE Transactions on Antennas and Propagation, 66(2), 729-736. doi:10.1109/TAP.2017.2782259
Journal: IEEE Transactions on Antennas and Propagation
Abstract: This paper presents a conformal log-periodic array covering an ultra-wideband of 2-18 GHz. It employs monopoles of different heights for the high band, top-hat monopoles for the middle band, and folded top-hat monopoles for the low band. The top hats help to achieve a low profile of the monopoles while the folding is to maintain a good input resistance at the low band. A meandering microstrip line on the bottom is used to feed the array. The proposed antenna is mounted on a conducting cylindrical surface with all the top hats conformal and aligned to the outline of the cylinder. A prototype is fabricated and tested. Measured results show that an impedance bandwidth from 2 to 18.3 GHz (9.15:1) for VSWR < 2 is obtained. Over the same band, the measured gain is better than 7.2 dBi. The antenna has a very low profile of 0.053 λL at the lowest operating frequency, which should be useful in many communication systems such as missile and airborne applications.
URI: https://hdl.handle.net/10356/137840
ISSN: 0018-926X
DOI: 10.1109/TAP.2017.2782259
Rights: © 2017 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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