A 280-GHz InP DHBT Receiver Detector Containing a Differential Preamplifier
- Authors
- Yi, Changhwan; Urteaga, Miguel; Choi, Seung Ho; Kim, Moonil
- Issue Date
- 3월-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- InP HBT; preamplified detector; terahertz detector; terahertz receiver
- Citation
- IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, v.7, no.2, pp.209 - 217
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
- Volume
- 7
- Number
- 2
- Start Page
- 209
- End Page
- 217
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/84331
- DOI
- 10.1109/TTHZ.2016.2639460
- ISSN
- 2156-342X
- Abstract
- A power detector integrated with a preamplifier is fabricated using a 250-nm InP double-heterojunction bipolar transistor technology for 280-GHz operation. The input RF signal to the detector is modulated at 20 kHz to decouple the output dc voltage from 1/f noise. The integrated receiver detector consists of a two-way balun, a differential preamplifier, a power detector. Breakout circuits of a standalone power detector and a test amplifier have been independently characterized. The test amplifier shows a gain of 18.1 dB and noise figure of 14 dB. The responsivity and noise equivalent power of the detector improve from 4.5 to 350 kV/W and from 10 to 0.13 pW/Hz(0.5), respectively, at 280 GHz, with the addition of the preamplifier. The performance enhancements due to the preamplifier are in close agreement with the results predicted by advanced design system simulations.
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