A Steerable Series-fed Phased Array Architecture Using Tunable PRI/NRI Phase Shifters

Author

Abdalla, Mohamed A Y ; Phang, Khoman ; Eleftheriades, George V.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON

fYear

2008

fDate

4-6 March 2008

Firstpage

83

Lastpage

86

Abstract

This paper presented a steerable series-fed phased array architecture using zero-degree tunable positive/negative-refractive-index (PRI/NRI) phase shifters. Using PRI/NRI phase shifters centered around the 0deg mark makes the array capable of steering its beam off broadside. The patch antennas of the array are moved off the centerline of the main feed line allowing for the inclusion of impedance transformers, which in turn, allows using identical inter-stage phase shifters, and allows using the same bias/control voltages to tune all stages.

Keywords

antenna phased arrays; microstrip antennas; phase shifters; refractive index; patch antenna; phase shifter; steerable series-fed phased array architecture; tunable positive-negative-refractive-index; Antenna arrays; Antenna radiation patterns; Computer architecture; Delay; Feeds; Frequency; Gratings; Impedance; Phase shifters; Phased arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: Small Antennas and Novel Metamaterials, 2008. iWAT 2008. International Workshop on

Conference_Location

Chiba

Print_ISBN

978-1-4244-1522-9

Type

conf

DOI

10.1109/IWAT.2008.4511296

Filename

4511296