Optimization of THz graphene FET detector integrated with a bowtie antenna
Paper in proceeding, 2016
This paper discusses the integration of the split bowtie antenna with a graphene FET THz detector to maximize the detector efficiency at 1 THz. The detector utilizes the principle of distributed resistive self-mixing in GFET, and the split bowtie antenna provides an asymmetric feed to the GFET. The antenna is placed on a substrate lens to improve the directivity and can be used to create an imaging array. The dimensions of the split bowtie antenna are optimized for the best impedance matching with the GFET and to improve the pixel density of the array. The off-axis pixel performance is improved by modifying the edge-pixel antennas. The improvement in directivity of corresponding pixels is up to 1.3 dB.
graphene
bowtie
GFET
Author
Andrey Generalov
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
MICHAEL ANDERSSON
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Xinxin Yang
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Jan Stake
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
European Conference on Antennas and Propagation
2164-3342 (ISSN)
978-8-8907-0186-3 (ISBN)
Areas of Advance
Information and Communication Technology
Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)
Infrastructure
Kollberg Laboratory
Nanofabrication Laboratory
Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/EuCAP.2016.7481475
ISBN
978-8-8907-0186-3