Title :
3-D THz tomography with an InP HBT signal source and a SiGe HBT imaging receiver operating near 300 GHz
Author :
Daekeun Yoon;Jongwon Yun;Jungsoo Kim;Kiryong Song;Mehmet Kaynak;Bernd Tillack;Jae-Sung Rieh
Author_Institution :
School of Electrical Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu, Seoul 136-701, Korea
Abstract :
In this work, 3-D THz tomography was demonstrated with an InP HBT signal source and a SiGe HBT imaging receiver. The signal source employs a common-base differential pair for an LC cross-coupled topology. It shows an output power of 5.3 dBm at 305.8 GHz. The receiver, which serves as an imaging detector in this work, is composed of a fundamental mixer, a local oscillator, an IF detector, and an on-chip antenna. It exhibits a responsivity of 322 kV/W and NEP of 3.9 pW/Hz1/2 at 300 GHz. A set of sinograms was acquired with an imaging setup employing the fabricated source and detector, and 3-D tomographic images were reconstructed based on the inverse filtered backprojection algorithm from the acquired sinograms.
Keywords :
"Receivers","Tomography","Detectors","Heterojunction bipolar transistors","Silicon germanium","Topology"
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2015 40th International Conference on
Electronic_ISBN :
2162-2035
DOI :
10.1109/IRMMW-THz.2015.7327606