A Beam-Steering Broadband Microstrip Antenna for Noncontact Vital Sign Detection

Author

Park, Zivin ; Lin, Jenshan

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Florida, Gainesville, FL, USA

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

235

Lastpage

238

Abstract

A 2.8-4.8-GHz beam-steering broadband microstrip antenna was designed, fabricated, and measured. The proposed broadband antenna can steer a beam by switching p-i-n diodes connecting stubs to a partial ground plane. Radiation pattern measurement shows expected horizontal beam steering at the sampled frequencies of 3, 3.5, 4, and 4.5 GHz. Its beam steering is suitable for a vital-sign radar application and other applications where simple beam-steering patterns are needed.

Keywords

UHF antennas; antenna radiation patterns; beam steering; broadband antennas; microstrip antennas; microwave antennas; p-i-n diodes; radar antennas; beam steering broadband microstrip antenna; beam steering pattern; broadband antenna; frequency 2.8 GHz to 4.8 GHz; noncontact vital sign detection; switching p-i-n diodes; vital-sign radar application; Antenna measurements; Antenna radiation patterns; Beam steering; Broadband antennas; Broadband communication; Microstrip antennas; Beam steering; broadband antenna; microstrip antenna; p-i-n diode; radar sensor; vital sign; wireless;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2126555

Filename

5729313