Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane
Abstract In this study, we develop a pattern‐reconfigurable dual‐band 1 × 2 dipole antenna array for operation in 2.45‐ and 5.5‐GHz bands. Parasitic directors are added to the antenna to change the shape of the radiation pattern, and the length of parasitic directors are adjusted using diode switche...
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Series: | IET Microwaves, Antennas & Propagation |
Online Access: | https://doi.org/10.1049/mia2.12020 |
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doaj-e336da0dcd11493ab7aa549e7853b1202021-08-21T10:55:55ZengWileyIET Microwaves, Antennas & Propagation1751-87251751-87332021-01-01151213210.1049/mia2.12020Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal planeChang‐Wei Su0Huayan Jin1Chung‐Yi Li2Yi‐Jyun Liao3Kuo‐Sheng Chin4Department of Electronic Engineering Chang Gung University Taoyuan Taiwan, ROCKey Laboratory of RF Circuits & System of Ministry of Education Institute of Antennas and Microwave Technology Hangzhou Dianzi University Hangzhou ChinaDepartment of Electronic Engineering Chang Gung University Taoyuan Taiwan, ROCDepartment of Electronic Engineering Chang Gung University Taoyuan Taiwan, ROCDepartment of Electronic Engineering Chang Gung University Taoyuan Taiwan, ROCAbstract In this study, we develop a pattern‐reconfigurable dual‐band 1 × 2 dipole antenna array for operation in 2.45‐ and 5.5‐GHz bands. Parasitic directors are added to the antenna to change the shape of the radiation pattern, and the length of parasitic directors are adjusted using diode switches; therefore, each band can switch four beams in 0° (front broadside), 90° (right endfire), 180° (back broadside), and 270° (left endfire) directions to achieve full coverage in the horizontal plane. For demonstration, one prototype of the proposed pattern‐reconfigurable dual‐band dipole antenna array was fabricated and measured. Measured results indicated that dual‐band operation was achieved with the maximum impedance bandwidths of 30.8% and 46% in 2.45‐ and 5.5‐GHz bands, respectively. Four switchable beams were obtained with a maximum gain of 5.3 dBi and a front‐to‐back ratio up to 17.3 dB.https://doi.org/10.1049/mia2.12020 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Chang‐Wei Su Huayan Jin Chung‐Yi Li Yi‐Jyun Liao Kuo‐Sheng Chin |
spellingShingle |
Chang‐Wei Su Huayan Jin Chung‐Yi Li Yi‐Jyun Liao Kuo‐Sheng Chin Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane IET Microwaves, Antennas & Propagation |
author_facet |
Chang‐Wei Su Huayan Jin Chung‐Yi Li Yi‐Jyun Liao Kuo‐Sheng Chin |
author_sort |
Chang‐Wei Su |
title |
Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane |
title_short |
Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane |
title_full |
Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane |
title_fullStr |
Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane |
title_full_unstemmed |
Pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane |
title_sort |
pattern‐reconfigurable dual‐band dipole antenna array with four switchable beams for full coverage in horizontal plane |
publisher |
Wiley |
series |
IET Microwaves, Antennas & Propagation |
issn |
1751-8725 1751-8733 |
publishDate |
2021-01-01 |
description |
Abstract In this study, we develop a pattern‐reconfigurable dual‐band 1 × 2 dipole antenna array for operation in 2.45‐ and 5.5‐GHz bands. Parasitic directors are added to the antenna to change the shape of the radiation pattern, and the length of parasitic directors are adjusted using diode switches; therefore, each band can switch four beams in 0° (front broadside), 90° (right endfire), 180° (back broadside), and 270° (left endfire) directions to achieve full coverage in the horizontal plane. For demonstration, one prototype of the proposed pattern‐reconfigurable dual‐band dipole antenna array was fabricated and measured. Measured results indicated that dual‐band operation was achieved with the maximum impedance bandwidths of 30.8% and 46% in 2.45‐ and 5.5‐GHz bands, respectively. Four switchable beams were obtained with a maximum gain of 5.3 dBi and a front‐to‐back ratio up to 17.3 dB. |
url |
https://doi.org/10.1049/mia2.12020 |
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