TY - GEN
T1 - Cross Bowtie Antenna-Coupled Detector for Circularly Polarized Infrared Wave Sensing
AU - Choi, Sangjo
N1 - Publisher Copyright:
© 2018 KIEES.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - A novel cross bowtie antenna topology which efficiently senses circular polarized (CP) infrared (IR) waves is presented. The antenna structure utilizes a low bandgap semiconductor, Indium Gallium Arsenide Antimonide (InGaAsSb) as an antenna load which converts the concentrated field at the antenna terminal to DC current efficiently. The proposed antenna is composed of a horizontal bowtie, a vertical bowtie antenna, and the elliptical traces which connect two arms from the two bowties. The antenna matching structure which compensates for loading effect from the InGaAsSb is presented and the final antenna structure coupled with the InGaAsSb as a compact CP detector shows perfect CP at 180 THz where the highest quantum efficiency of the InGaAsSb exists.
AB - A novel cross bowtie antenna topology which efficiently senses circular polarized (CP) infrared (IR) waves is presented. The antenna structure utilizes a low bandgap semiconductor, Indium Gallium Arsenide Antimonide (InGaAsSb) as an antenna load which converts the concentrated field at the antenna terminal to DC current efficiently. The proposed antenna is composed of a horizontal bowtie, a vertical bowtie antenna, and the elliptical traces which connect two arms from the two bowties. The antenna matching structure which compensates for loading effect from the InGaAsSb is presented and the final antenna structure coupled with the InGaAsSb as a compact CP detector shows perfect CP at 180 THz where the highest quantum efficiency of the InGaAsSb exists.
KW - Circular Polarization
KW - Infrared Antenna
KW - Infrared Detector
UR - https://www.scopus.com/pages/publications/85062768561
M3 - Conference contribution
AN - SCOPUS:85062768561
T3 - ISAP 2018 - 2018 International Symposium on Antennas and Propagation
BT - ISAP 2018 - 2018 International Symposium on Antennas and Propagation
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 International Symposium on Antennas and Propagation, ISAP 2018
Y2 - 23 October 2018 through 26 October 2018
ER -