Broadband Reflectarray Antenna Using Subwavelength Elements Based on Double Square Meander-Line Rings
Authors:
- 23 November 2015
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 64 (1) , 378-383
Abstract
A linearly polarized broadband reflectarray is presented employing a novel single layer subwavelength phase shifting element. The size of the element is a fifth of a wavelength at the center frequency of 10 GHz and the element consists of double concentric square rings of meander lines. By changing the length of the meander line, a 420° phase variation range is achieved at the center frequency. This characteristic makes the proposed configuration unique, as most of the reported subwavelength reflectarray elements can only realize a phase range far less than 360°. In addition, the slope of the phase response remains almost constant from 9 to 11 GHz, demonstrating a broadband property. A $48 \times 48$-element reflectarray antenna is simulated, fabricated, and measured. Good agreement is obtained between simulated and measured results. A measured 1.5-dB gain bandwidth of 18% and 56.5% aperture efficiency is achieved.Keywords
This publication has 17 references indexed in Scilit:
- A sub-wavelength reflectarray element based on double square rings loaded with meander lines2014
- Development of Novel Low-Cost Reflectarrays [Antenna Applications Corner]IEEE Antennas and Propagation Magazine, 2012
- Single Layer Reflectarray With Circular Rings and Open-Circuited Stubs for Wideband OperationIEEE Transactions on Antennas and Propagation, 2012
- Reflectarray design comprised of sub-wavelength coupled-resonant square loop elementsElectronics Letters, 2011
- A Subwavelength Element for Broadband Circularly Polarized ReflectarraysIEEE Antennas and Wireless Propagation Letters, 2010
- Novel Broadband Planar Reflectarray With Parasitic Dipoles for Wireless Communication ApplicationsIEEE Antennas and Wireless Propagation Letters, 2009
- A broadband microstrip reflectarray using sub-wavelength patch elements2009 IEEE Antennas and Propagation Society International Symposium, 2009
- Wideband reflectarrays using artificial impedance surfacesElectronics Letters, 2007
- Analysis and design of a microstrip reflectarray using patches of variable size2002
- Design of millimeter wave microstrip reflectarraysIEEE Transactions on Antennas and Propagation, 1997