TY - JOUR
T1 - W-band injection-locked frequency octupler using a push-push output structure
AU - Park, Kwangwon
AU - Kim, Dongkyo
AU - Lee, Iljin
AU - Jeon, Sanggeun
N1 - 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: sgjeon@korea.ac.kr).
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.
PY - 2019/12
Y1 - 2019/12
N2 - 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.
AB - 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.
KW - Injection-locked frequency octupler (ILFO)
KW - Multiplication factor
KW - Push-push oscillator
KW - W-band frequency
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U2 - 10.1109/LMWC.2019.2946112
DO - 10.1109/LMWC.2019.2946112
M3 - Article
AN - SCOPUS:85077513908
VL - 29
SP - 822
EP - 825
JO - IEEE Microwave and Wireless Components Letters
JF - IEEE Microwave and Wireless Components Letters
SN - 1531-1309
IS - 12
M1 - 2946112
ER -