Abstract
This letter presents an injection-locked frequency octupler (ILFO) fabricated using a 100-nm GaAs pHEMT. A frequency quadrupler, followed by an injection-locked push-push oscillator, is employed to achieve a high multiplication factor of eight with a simple structure. Compared to conventional amplifier-multiplier chains, the proposed structure is advantageous for dc power and chip area consumption, phase noise, and circuit stability. The high multiplication factor allows the use of a low-frequency, high-performance, phase-locked-loop (PLL) as input. The ILFO achieves a locking range from 90.5 to 95.2 with 1-dBm input power. The output power is measured to be −0.4 dBm at 91.2 GHz. The phase-noise degradation from the input source to the output is 19.7 dB at 100-kHz offset.
Original language | English |
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Article number | 2946112 |
Pages (from-to) | 822-825 |
Number of pages | 4 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 29 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2019 Dec |
Bibliographical note
Funding Information:Manuscript received July 23, 2019; revised September 3, 2019; accepted October 2, 2019. Date of publication October 21, 2019; date of current version December 4, 2019. This work was supported by Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korean Government (MSIT) under Grant 2016-0-00185. (Corresponding author: Sanggeun Jeon.) The authors are with the School of Electrical Engineering, Korea University, Seoul 02841, South Korea (e-mail: [email protected]).
Funding Information:
This work was supported by Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korean Government (MSIT) under Grant 2016-0-00185. The authors would like to thank K. Choi from Seoul National University for W-band spectral measurements.
Publisher Copyright:
© 2019 IEEE
Keywords
- Injection-locked frequency octupler (ILFO)
- Multiplication factor
- Push-push oscillator
- W-band frequency
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering