Title :
Slot spiral detector array for broadband THz imaging1
Author :
Trichopoulos, Georgios C. ; Sertel, Kubilay ; Volakis, John L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
In this work, we propose a broadband FPA pixel in form of a printed slot spiral antenna with an operation bandwidth of 500-900GHz. Moreover, the antenna impedance is carefully designed to match to that of the detector diode to exploit the maximum responsivity achievable. This broadband, high-sensitivity FPA will significantly speed-up the image acquisition times and allow THz imaging tools to be employed for real-time diagnostics of various tissue characteristics in the 500GHz-1THz range.
Keywords :
biological tissues; biomedical imaging; focal planes; microwave imaging; slot antenna arrays; spiral antennas; terahertz wave imaging; THz imaging tools; antenna impedance; broadband FPA pixel; broadband THz imaging; broadband high-sensitivity FPA; detector diode; focal plane array; frequency 500 GHz to 1 THz; image acquisition times; printed slot spiral antenna; real-time diagnostics; slot spiral detector array; tissue characteristics; Arrays; Broadband antennas; Detectors; Imaging; Lenses; Slot antennas; Spirals;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5561097
