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Ultra-wideband and Multiband Reflectarrays for Intelligent Multi-functional Platforms

Luo, Qi and Gao, Steven and Li, Wenting and Yang, Xuexia and Wen, Geyi (2019) Ultra-wideband and Multiband Reflectarrays for Intelligent Multi-functional Platforms. In: 2019 13th European Conference on Antennas and Propagation (EuCAP). IEEE, New York, USA. ISBN 978-1-5386-8127-5. E-ISBN 978-88-907018-8-7. (KAR id:76325)

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This paper includes two parts. In the first part, a review of techniques for designing wideband or multiband reflectarrays is presented. In the second part, two case studies including the designs of one ultra-wideband (UWB) reflectarray and one multi-band reflectarray are presented. The UWB reflectarray is a novel tightly coupled dipole reflectarray (TCDR) whose unit cell is composed of a tightly coupled dipole and a delay line. The minimum distance between adjacent cells is about 1/10 wavelength at the lowest operating frequency. The TCDR operates from 3.4 to 10.6 GHz with stable radiation patterns and aperture efficiency. The multiband reflectarray is a novel dual-band, dual circularly polarized (CP) reflectarray. The dual-band operation of the reflectarray is obtained by using the interleaved circularly polarized triangular patches as the radiating elements. Within each frequency band, two simultaneous shaped beams with different circular polarization and independent control are realized. Both reflectarrays are fabricated and measurement results are presented.

Item Type: Book section
Uncontrolled keywords: reflector antennas; antenna measurements; antenna radiation patterns; apertures; feeds; wideband
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Steven Gao
Date Deposited: 10 Sep 2019 13:57 UTC
Last Modified: 16 Feb 2021 14:07 UTC
Resource URI: (The current URI for this page, for reference purposes)
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