Wideband Low Profile Multi-Polarization Reconfigurable Antenna with Quasi-cross-shaped Coupling Slot

Authors

  • Qun Xu College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China, 2 The Aeronautical Science Key Lab for High Performance Electromagnetic Windows Country the Research Institute for Special Structures of Aeronautical Composite AVIC, Jinan, 250023, China
  • Zhiming Liu 1 College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China ,3 Department of Electrical and Computer Engineering University of Victoria, Victoria, BC, V8W 2Y2, Canada
  • Shaobin Liu College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China
  • Xiangkun Kong College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China
  • Zhengyu Huang College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China
  • Borui Bian College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China
  • Qiming Yu College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China
  • Jianghong Qin College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China

Keywords:

Low profile, polarization reconfigurable antenna, slot antenna, wideband

Abstract

A wideband low profile multi-polarization reconfigurable antenna with quasi-cross-shaped coupling slot is proposed. The antenna consists of an upper oval radiating patch, the quasi-cross-shaped coupling slot, fork-shaped folded feed lines and a reconfigurable Wilkinson power divider network with four pairs of p-in diodes. The antenna reconfigurable polarization modes change among ±45° Linear polarization (LP), dual-LP, left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) by controlling the ON/OFF states of the p-i-n diodes. The designed prototype has been fabricated and measured. Good agreement between the measured and simulated results is achieved. Measured results show that the antenna has wide impedance bandwidth (over 21.35% for LP and 17.70% for CP) and axial ratio (AR) bandwidth (16.13% for LHCP and 16.88% for RHCP). The average realized gains are about 7.6 dBi for different polarization modes. The proposed antenna has the advantages of multi-polarization reconfigurable ability, wide bandwidth, low profile, and high gains, which make it possible to be applied to wireless communication systems.

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References

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Published

2020-03-01

How to Cite

[1]
Qun Xu, “Wideband Low Profile Multi-Polarization Reconfigurable Antenna with Quasi-cross-shaped Coupling Slot”, ACES Journal, vol. 35, no. 3, pp. 331–337, Mar. 2020.

Issue

2020: Vol 35 Iss 3

Section

Articles