Log-periodic monopole array with uniform spacing and uniform height

This paper presents a log-periodic monopole array (LPMA) with uniform spacing and uniform height operating in a wideband of 2-6 GHz. Different from the conventional LPMA with logarithmic spacing and height, the proposed antenna with uniform spacing and uniform height simplifies the design procedure...

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Main Authors: Song, Qinghua, Shen, Zhongxiang, Lu, Jian
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/137839
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1378392020-04-16T02:35:37Z Log-periodic monopole array with uniform spacing and uniform height Song, Qinghua Shen, Zhongxiang Lu, Jian School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Log-periodic Monopole Array Low Profile This paper presents a log-periodic monopole array (LPMA) with uniform spacing and uniform height operating in a wideband of 2-6 GHz. Different from the conventional LPMA with logarithmic spacing and height, the proposed antenna with uniform spacing and uniform height simplifies the design procedure and retains a low profile. The top-hat monopoles and folded top-hat monopoles are used to reduce the height of the antenna. A maximum bandwidth of 3:1 is theoretically proposed by considering the maximum and minimum spacing factor of the array. A meandering microstrip line is employed as the feeding line. The compensation of the length of the feeding line is proposed for the uniformly spaced LPMA compared to the conventional array. A prototype is fabricated and tested. Measured results indicate that an impedance bandwidth from 2 to 6 GHz (3:1) with VSWR < 2 is achieved. The measured peak realized gain is in the range of 6.6-8.7 dBi, which has great potential in many communication systems such as missile and airborne applications. 2020-04-16T02:35:37Z 2020-04-16T02:35:37Z 2018 Journal Article Song, Q., Shen, Z., & Lu, J. (2018). Log-periodic monopole array with uniform spacing and uniform height. IEEE Transactions on Antennas and Propagation, 66(9), 4687-4694. doi:10.1109/TAP.2018.2846797 0018-926X https://hdl.handle.net/10356/137839 10.1109/TAP.2018.2846797 2-s2.0-85048566441 9 66 4687 4694 en IEEE Transactions on Antennas and Propagation © 2018 IEEE. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Log-periodic Monopole Array
Low Profile
spellingShingle Engineering::Electrical and electronic engineering
Log-periodic Monopole Array
Low Profile
Song, Qinghua
Shen, Zhongxiang
Lu, Jian
Log-periodic monopole array with uniform spacing and uniform height
description This paper presents a log-periodic monopole array (LPMA) with uniform spacing and uniform height operating in a wideband of 2-6 GHz. Different from the conventional LPMA with logarithmic spacing and height, the proposed antenna with uniform spacing and uniform height simplifies the design procedure and retains a low profile. The top-hat monopoles and folded top-hat monopoles are used to reduce the height of the antenna. A maximum bandwidth of 3:1 is theoretically proposed by considering the maximum and minimum spacing factor of the array. A meandering microstrip line is employed as the feeding line. The compensation of the length of the feeding line is proposed for the uniformly spaced LPMA compared to the conventional array. A prototype is fabricated and tested. Measured results indicate that an impedance bandwidth from 2 to 6 GHz (3:1) with VSWR < 2 is achieved. The measured peak realized gain is in the range of 6.6-8.7 dBi, which has great potential in many communication systems such as missile and airborne applications.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Song, Qinghua
Shen, Zhongxiang
Lu, Jian
format Article
author Song, Qinghua
Shen, Zhongxiang
Lu, Jian
author_sort Song, Qinghua
title Log-periodic monopole array with uniform spacing and uniform height
title_short Log-periodic monopole array with uniform spacing and uniform height
title_full Log-periodic monopole array with uniform spacing and uniform height
title_fullStr Log-periodic monopole array with uniform spacing and uniform height
title_full_unstemmed Log-periodic monopole array with uniform spacing and uniform height
title_sort log-periodic monopole array with uniform spacing and uniform height
publishDate 2020
url https://hdl.handle.net/10356/137839
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