期刊
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
卷 -, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWT.2023.3271989
关键词
Gallium nitride (GaN); high electron mobility transistor (HEMT); K-band; monolithic microwave integrated circuit (MMIC); oscillator
This paper proposes a monolithic microwave integrated circuit (MMIC) cross-coupled oscillator with high operating frequency and high output power using 0.25-mu m gallium nitride (GaN) high electron mobility transistor (HEMT) technology. The coupling capacitors in the core circuit are analyzed for high output power with a suitable tank inductor. A flip-transistor layout with a shared back via is proposed for reduced interconnect loss and a compact layout. The measured results show a maximum output power of 16 dBm at 24.3 GHz, and a phase noise (PN) of -137.9 dBc/Hz at a 10-MHz offset, with a chip area of only 0.71 mm(2).
In this letter, a monolithic microwave integrated circuit (MMIC) cross-coupled oscillator with high operating frequency and high output power is proposed using 0.25-mu m gallium nitride (GaN) high electron mobility transistor (HEMT) technology. The coupling capacitors in the core circuit are analyzed to obtain high output power with a suitable tank inductor. The p-type matching network is adopted to effectively extract the fundamental output signal. Also, a flip-transistor layout with a shared back via is proposed for reduced interconnect loss and a compact layout. With a chip area of only 0.71 mm(2), the measured results demonstrate a maximum output power of 16 dBm at 24.3 GHz, and a phase noise (PN) of -137.9 dBc/Hz at a 10-MHz offset.
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