Title :
A narrow beamwidth array antenna design for indoor non-contact vital sign sensor
Author :
Tang, Tzu-Chun ; Chuang, Ya-Rong ; Lin, Ken-Huang
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A narrow beamwidth antenna at 2.45 GHz is proposed. It contains a 2 × 4 ground surrounded antenna (GSA) array and a substrate as superstrate. Our GSA provides better bandwidth performance than traditional patch antenna. Design concept of GSA will be described in this paper. The bandwidth and gain of the proposed antenna array are 8.6% (VSWR <; 2) and 12.2 dBi, and the half power beamwidth (HPBW) at two orthogonal planes are 26 ° and 52 °, respectively.
Keywords :
UHF antennas; antenna arrays; frequency 2.45 GHz; ground surrounded antenna array; half power beamwidth; indoor noncontact vital sign sensor; narrow beamwidth array antenna; orthogonal planes; substrate; Antenna arrays; Arrays; Bandwidth; Metals; Substrates;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348677
