A Filtering Patch Antenna With Reconfigurable Quad-Polarization Diversity

Yiqing Sun; Feng Lin; De Hao Zhao; Zhen Jun Zhai; Hou Jun Sun; Xiu Yin Zhang

doi:10.1109/TCSII.2023.3327000

A Filtering Patch Antenna With Reconfigurable Quad-Polarization Diversity

Yiqing Sun, Feng Lin^*, De Hao Zhao, Zhen Jun Zhai, Hou Jun Sun, Xiu Yin Zhang

^*Corresponding author for this work

School of Integrated Circuits and Electronics

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

This brief presents a filtering patch antenna with reconfigurable quad-polarization diversity. By loading parasitic patches and a Jerusalem-cross-shaped metal strip on a patch antenna, two radiation nulls are introduced to realize frequency selectivity. Then, to achieve reconfigurability, a feeding network with four switchable output modes is proposed. By switching the PIN diodes, the antenna realizes vertical linear-polarized (V-LP), horizontal linear-polarized (H-LP), left-hand circular-polarized (LHCP) and right-hand circular-polarized (RHCP) radiations while maintaining its intrinsic filtering characteristic. A prototype operating at 2.28 GHz is fabricated, and the measured 10-dB overlapped bandwidth of the four polarization states is 5.7%. The peak gains for the four states are higher than 6.65 dBi, and the overlapped 3-dB AR bandwidth is 7.89%.

Original language	English
Pages (from-to)	1106-1110
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	71
Issue number	3
DOIs	http://doi.org/10.1109/TCSII.2023.3327000
Publication status	Published - 1 Mar 2024

Keywords

Filtering antenna
quad-polarization
radiation nulls
reconfigurable device

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10.1109/TCSII.2023.3327000

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title = "A Filtering Patch Antenna With Reconfigurable Quad-Polarization Diversity",

abstract = "This brief presents a filtering patch antenna with reconfigurable quad-polarization diversity. By loading parasitic patches and a Jerusalem-cross-shaped metal strip on a patch antenna, two radiation nulls are introduced to realize frequency selectivity. Then, to achieve reconfigurability, a feeding network with four switchable output modes is proposed. By switching the PIN diodes, the antenna realizes vertical linear-polarized (V-LP), horizontal linear-polarized (H-LP), left-hand circular-polarized (LHCP) and right-hand circular-polarized (RHCP) radiations while maintaining its intrinsic filtering characteristic. A prototype operating at 2.28 GHz is fabricated, and the measured 10-dB overlapped bandwidth of the four polarization states is 5.7\%. The peak gains for the four states are higher than 6.65 dBi, and the overlapped 3-dB AR bandwidth is 7.89\%.",

keywords = "Filtering antenna, quad-polarization, radiation nulls, reconfigurable device",

author = "Yiqing Sun and Feng Lin and Zhao, \{De Hao\} and Zhai, \{Zhen Jun\} and Sun, \{Hou Jun\} and Zhang, \{Xiu Yin\}",

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AU - Zhang, Xiu Yin

PY - 2024/3/1

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N2 - This brief presents a filtering patch antenna with reconfigurable quad-polarization diversity. By loading parasitic patches and a Jerusalem-cross-shaped metal strip on a patch antenna, two radiation nulls are introduced to realize frequency selectivity. Then, to achieve reconfigurability, a feeding network with four switchable output modes is proposed. By switching the PIN diodes, the antenna realizes vertical linear-polarized (V-LP), horizontal linear-polarized (H-LP), left-hand circular-polarized (LHCP) and right-hand circular-polarized (RHCP) radiations while maintaining its intrinsic filtering characteristic. A prototype operating at 2.28 GHz is fabricated, and the measured 10-dB overlapped bandwidth of the four polarization states is 5.7%. The peak gains for the four states are higher than 6.65 dBi, and the overlapped 3-dB AR bandwidth is 7.89%.

AB - This brief presents a filtering patch antenna with reconfigurable quad-polarization diversity. By loading parasitic patches and a Jerusalem-cross-shaped metal strip on a patch antenna, two radiation nulls are introduced to realize frequency selectivity. Then, to achieve reconfigurability, a feeding network with four switchable output modes is proposed. By switching the PIN diodes, the antenna realizes vertical linear-polarized (V-LP), horizontal linear-polarized (H-LP), left-hand circular-polarized (LHCP) and right-hand circular-polarized (RHCP) radiations while maintaining its intrinsic filtering characteristic. A prototype operating at 2.28 GHz is fabricated, and the measured 10-dB overlapped bandwidth of the four polarization states is 5.7%. The peak gains for the four states are higher than 6.65 dBi, and the overlapped 3-dB AR bandwidth is 7.89%.

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KW - radiation nulls

KW - reconfigurable device

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A Filtering Patch Antenna With Reconfigurable Quad-Polarization Diversity

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Keywords

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