Variable beamwidth shorted patch antenna array for indoor positioning

Author

Matsumoto, Hirokazu ; Tanikawara, Makoto ; Kohiyama, Tomohisa

Author_Institution

Hitachi Ind. Equip. Syst. Co., Ltd., Tokyo, Japan

fYear

2014

fDate

19-23 Jan. 2014

Firstpage

64

Lastpage

66

Abstract

Variable beamwidth antennas can optimize the radio coverage of a transmitter for indoor positioning. In this study, we developed a small variable beamwidth antenna array suitable for indoor positioning that is comprised of electrically small shorted patch antennas and is adapted for use with the indoor messaging system (IMES). We did theoretical calculations and experimental measurements to examine the antenna properties. Our results showed that beamwidth variations from 40° to 65° can be obtained and that the boresight gain is adequate for use with IMES transmitters.

Keywords

antenna arrays; indoor radio; microstrip antennas; radio transmitters; IMES transmitters; antenna properties; boresight gain; indoor messaging system; indoor positioning; patch antenna array; transmitter radio coverage; variable beamwidth antennas; Antenna arrays; Antenna measurements; Antenna radiation patterns; Arrays; Gain; Method of moments; Patch antennas; Global Positioning System; Indoor positioning; Indoor radio communication; Microstrip antenna arrays; Patch antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Symposium (RWS), 2014 IEEE

Conference_Location

Newport Beach, CA

Print_ISBN

978-1-4799-2298-7

Type

conf

DOI

10.1109/RWS.2014.6830136

Filename

6830136