Title

Tunable Reflectarray Unit Cell Element Using Bst Technology

Keywords

Electronically Scanned Array; Microstrip Antennas; Parasitic Array; Phased Array Antenna

Abstract

Two- and three-element microstrip patch ESPAR arrays are presented, operating at 2.5 GHz and 1 GHz, respectively. Both ESPAR structures are driven using a single element which is coupled to the parasitic antennas. Mutual coupling between the driven and parasitic elements replaces the traditional feed system and eliminates phase shifters. Tunable varactors are utilized to control the beam scanning. Both arrays are simulated with a full-wave solver, while the three-element array is fabricated and measured. Impedance match at the operating frequency is consistently maintained, as the resonance is controlled by tunable reactive loading. Phase shifter elimination results in inexpensive fabrication, allowing widespread use in point-to-point communication systems such as automobile receivers for satellite and GPS. © 2012 IEEE.

Publication Date

5-11-2012

Publication Title

RWW 2012 - Proceedings: IEEE Radio and Wireless Symposium, RWS 2012

Number of Pages

43-46

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/RWS.2012.6175302

Socpus ID

84860669065 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84860669065

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