DocumentCode
1497464
Title
Focus-Scanning Leaky-Wave Antenna With Electronically Pattern-Tunable Scatterers
Author
Monnai, Yasuaki ; Shinoda, Hiroyuki
Author_Institution
Dept. of Inf. Phys. & Comput., Univ. of Tokyo, Tokyo, Japan
Volume
59
Issue
6
fYear
2011
fDate
6/1/2011 12:00:00 AM
Firstpage
2070
Lastpage
2077
Abstract
A focus-scanning leaky-wave antenna is proposed. It is based on evanescent wave scattering by electronically pattern tunable scatterers fabricated of fine cascade connections of field effect transistors (FETs). The focus is tailored by switching the FETs so that numbers of the scattered waves cause constructive interference at the target point. Our prototype achieved focus-scanning at 2.4 GHz. The proposed antenna can be used as a very low-cost and lightweight phased array especially suitable to indoor use.
Keywords
field effect transistors; leaky wave antennas; FET; electronically pattern-tunable scatterers; evanescent wave scattering; field effect transistors; focus-scanning leaky-wave antenna; frequency 2.4 GHz; lightweight phased array; Apertures; Arrays; FETs; Microstrip; Microstrip antenna arrays; Surface impedance; Surface waves; Evanescent waves; focus-scanning; focused antennas; leaky-wave antennas; phased arrays; reconfigurable microstrip arrays;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.2011.2143680
Filename
5752228
Link To Document