Abstract
A 280-GHz high-power signal source has been developed in this work based on a 250-nm InP heterojunction bipolar transistor (HBT) technology. The fabricated signal source is composed of two in-phase locked common-base cross-coupled oscillators, the output of which is on-chip combined by a pair of rat-race couplers and a Wilkinson power combiner for enhanced output power. The developed signal source exhibits an oscillation frequency of 276.4 GHz and a phase noise of-89 dBc/Hz at 1 MHz offset. The output power of the signal source is measured to be 10 dBm (10 mW), while consuming a dc power of 196 mW (dc-to-RF efficiency of 5.1%).
Original language | English |
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Article number | 7827139 |
Pages (from-to) | 159-161 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 27 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2017 Feb |
Bibliographical note
Funding Information:This work was supported by NRF grant funded by the Korea government (MSIP) (NRF-2015R1A2A1A05001836).
Publisher Copyright:
© 2017 IEEE.
Keywords
- Heterojunction bipolar transistors
- injection locked oscillators
- power combining
- submillimeter wave integrated circuits
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering