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Kim, Kyung Rok
Nano-Electronic Emerging Devices (NEEDs) Lab
Research Interests
  • Nano-CMOS, neuromorphic device, terahertz (THz) plasma-wave transistor (PWT)

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Monolithic Circular Transistor-Antenna Design for High-Performance Plasmonic Millimeter-Wave Detectors

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Title
Monolithic Circular Transistor-Antenna Design for High-Performance Plasmonic Millimeter-Wave Detectors
Author
Patel, RameshRyu, Min WooChoe, Mun SeokChoi, EunMiKim, Kyung RokHan, Ki Jin
Issue Date
2020-04
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.68, no.4, pp.2511 - 2522
Abstract
This article reports a novel monolithic circular transistor-antenna by designing a ring-type asymmetric field-effect transistors (FET) itself as a receiving antenna element for high-performance plasmonic millimeter-wave detectors. Operation principle of the proposed device is discussed, focusing on how signal transmission through the ring-type structure is available without any feeding line between the antenna and the detector. To determine the antenna geometry aiming for a desired resonant frequency, we present an efficient design procedure based on periodic bandgap analysis combined with parametric electromagnetic simulations. From a fabricated ring-type FET-based monolithic antenna device for 120 GHz resonance frequency with the 3 dB full width at half maximum (FWHM) of 23 GHz, we demonstrated the highly enhanced optical responsivity similar to 1.1 kV/W (x5.5) and the reduced optical noise equivalent power (NEP) similar to 18 pW/Hz(0.5) (x1/7.4) at a chopping frequency of 2 kHz, compared to a reference bar-type detector. Moreover, the responsivity and the NEP in this article are in comparable order with the reported values of similar to 2.2 kV/W and 14 pW/Hz0.5, respectively, from the state-of-the-art CMOS-based antenna integrated direct detectors.
URI
https://scholarworks.unist.ac.kr/handle/201301/30603
URL
https://ieeexplore.ieee.org/document/8895837
DOI
10.1109/TAP.2019.2951523
ISSN
0018-926X
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