A Periodic Mirror-Reflected Circular-Polarized Leaky Wave Antenna With Dual-Beam Scanning in Dual Polarization Types
- 15 October 2021
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 70 (4), 3034-3039
- https://doi.org/10.1109/tap.2021.3119048
Abstract
A periodic mirror-reflected circular-polarized (CP) leaky wave antenna (LWA) with dual beam-scanning in dual polarization types is reported in this paper. The unit cell of the proposed antenna consists of two oblique stubs that are orthogonally separated (90°) to create a circular polarization. In order to achieve better CP (axial ratio (AR) < 3dB) and beam-scanning characteristics for the periodic CP antenna, a new method of adding a groove at the junction of stubs within the unit cell is introduced. To realize dual beam-scanning in dual circular polarization, a metal via is added at the end of the antenna to generate a mirror reflection. A mirror-reflected structure is fabricated and measured. The measured results show that the right-handed CP (RHCP) scanning range of the incident beam is -31°~-8° and 5°~-14°, and the left-handed CP (LHCP) scanning range of the corresponding reflected beam is 31°~6° and -6°~-15°. The measured results are in good agreement with the simulated ones.Funding Information
- Natural Science Foundation of China (61971453, 62001522)
- National Key Research and Development Program of China (2020YFB1806301)
This publication has 28 references indexed in Scilit:
- Periodic SIW Leaky-Wave Antenna With Large Circularly Polarized Beam Scanning RangeIEEE Antennas and Wireless Propagation Letters, 2017
- Periodic Triangle-Truncated DSPSL-Based Antenna With Backfire to Endfire Beam-Scanning CapacityIEEE Transactions on Antennas and Propagation, 2016
- Fixed-Frequency Beam Steering of Microstrip Leaky-Wave Antennas Using Binary SwitchesIEEE Transactions on Antennas and Propagation, 2016
- Periodic U-Slot-Loaded Dual-Band Half-Width Microstrip Leaky-Wave Antennas for Forward and Backward Beam ScanningIEEE Transactions on Antennas and Propagation, 2015
- Wideband Circular Polarization Reconfigurable AntennaIEEE Transactions on Antennas and Propagation, 2015
- Periodic Collinear-Slotted Leaky Wave Antenna With Open Stopband EliminationIEEE Transactions on Antennas and Propagation, 2015
- Low-Loss Circularly Polarized Periodic Leaky-Wave AntennaIEEE Antennas and Wireless Propagation Letters, 2015
- A Compact Single Radiator CRLH-Inspired Circularly Polarized Leaky-Wave Antenna Based on Substrate-Integrated WaveguideIEEE Transactions on Antennas and Propagation, 2015
- Half width leaky wave antennasIET Microwaves, Antennas & Propagation, 2007
- Studies of suppression of the reflected wave and beam-scanning features of the antenna arraysIEEE Transactions on Antennas and Propagation, 2005