Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays | Zendy

Francesca Venneri | Zendy; Sandra Costanzo | Zendy; G. Di Massa | Zendy

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Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays

Author(s) -

Francesca Venneri,

Sandra Costanzo,

G. Di Massa

Publication year - 2012

Publication title -

international journal of antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.282

H-Index - 37

eISSN - 1687-5877

pISSN - 1687-5869

DOI - 10.1155/2012/846017

Subject(s) - broadband , phase compensation , bandwidth (computing) , aperture (computer memory) , optics , electronic engineering , engineering , acoustics , physics , telecommunications

The bandwidth features of reflectarray antennas are analyzed by examining in detail the phase errors due to the compensation mechanism for spatial phase delays. A bandwidth estimation rule is defined, taking into account the combined effects due to the overall antenna geometry and the frequency response of the single reflectarray element. An aperture-coupled reflectarray configuration with reduced interelement spacing is considered as broadband solution for the implementation of small reflectarrays. A 20 GHz aperture-coupled element is synthesized for the design of a 12 diameter reflectarray, showing a simulated 1 dB gain bandwidth of 23%

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