Title :
Design and characterization of a broadband focal plane array for THz imaging
Author :
Topalli, Kagan ; Trichopoulos, Georgios C. ; Sertel, Kubilay
Author_Institution :
Electr. & Comput. Eng. Dept., Ohio State Univ., Columbus, OH, USA
Abstract :
A novel broadband monolithic THz antenna design that covers the 0.625 THz-1.125 THz band is developed as the imaging pixel of THz focal plane array. Each pixel consists of heterostructure backward diodes monolithically integrated with impedance tuned THz antennas. Since THz responsivity of the pixel is optimized by conjugate matching between the antenna and the diode, it is important to characterize antenna impedance. To this end, an indirect impedance characterization method for THz antennas using coplanar probe measurements is presented.
Keywords :
broadband antennas; terahertz wave imaging; THz imaging; antenna impedance; broadband focal plane array; broadband monolithic THz antenna design; conjugate matching; coplanar probe measurements; frequency 0.625 THz to 1.125 THz; imaging pixel; Antenna measurements; Arrays; Broadband antennas; Imaging; Impedance; Probes; Antenna measurements; Focal plane arrays; Terahertz detectors;
Conference_Titel :
Aerospace and Electronics Conference (NAECON), Proceedings of the 2011 IEEE National
Conference_Location :
Dayton, OH
Print_ISBN :
978-1-4577-1040-7
DOI :
10.1109/NAECON.2011.6183068
