TY - GEN
T1 - Design of a phased array antenna for indoor positioning system
AU - Guan, Chai Eu
AU - Yoshitomi, Kuniaki
AU - Kanaya, Haruichi
PY - 2019/1/16
Y1 - 2019/1/16
N2 - Corporate-fed phased array antenna with low beam squint is presented for indoor positioning system. Corporate feeding network has a low phase delay, and scan angle variation corresponding to operational frequency bandwidth is considerably small. Conventional phase shifter with large phase shift range is not suitable for beam steering application because quarter-wavelength transmission line in its reflective network radiates. In order to remove unwanted radiation, equivalent circuit for quarter-wavelength transmission line composed of discrete chip inductors and capacitors is proposed. The proposed phase shifter has maximum relative phase shift of 240 degrees and insertion loss of 3.5 dB +/- 0.5 dB. Scan angle of +/-10 degree is measured when phased array antenna, based on the proposed phase shifter, is scanned in both directions off the broadside. Low beam squint is obtained in the proposed design.
AB - Corporate-fed phased array antenna with low beam squint is presented for indoor positioning system. Corporate feeding network has a low phase delay, and scan angle variation corresponding to operational frequency bandwidth is considerably small. Conventional phase shifter with large phase shift range is not suitable for beam steering application because quarter-wavelength transmission line in its reflective network radiates. In order to remove unwanted radiation, equivalent circuit for quarter-wavelength transmission line composed of discrete chip inductors and capacitors is proposed. The proposed phase shifter has maximum relative phase shift of 240 degrees and insertion loss of 3.5 dB +/- 0.5 dB. Scan angle of +/-10 degree is measured when phased array antenna, based on the proposed phase shifter, is scanned in both directions off the broadside. Low beam squint is obtained in the proposed design.
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U2 - 10.23919/APMC.2018.8617336
DO - 10.23919/APMC.2018.8617336
M3 - Conference contribution
AN - SCOPUS:85061828633
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
SP - 1259
EP - 1261
BT - 2018 Asia-Pacific Microwave Conference, APMC 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 30th Asia-Pacific Microwave Conference, APMC 2018
Y2 - 6 November 2018 through 9 November 2018
ER -