Simple K-band MMIC VCO utilizing a miniaturized hairpin resonator and a three-terminal p-HEMT varactor with low phase noise and high output power properties

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This letter presents a fully monolithic K-band MMIC voltage-controlled oscillator (VCO) implemented by using a 0.25 mum AlGaAs/InGaAs pseudomorphic HEMT (p-HEMT) technology. The use of a half-wavelength miniaturized hairpin-shaped resonator and a three-terminal p-HEMT varactor was effective in reducing the chip size and simplifying fabrication processes of the microwave MMIC VCO without impairing the performance of the circuit. The VCO provides a typical output power of 11.5 dBm. at 20.8 GHz and a free-running phase noise of -82 dBc/Hz at 100 kHz offset and -95 dBc/Hz at 1 MHz offset. It also shows a tuning 9 range of 70 MHz with little reduction in output power and high yield properties. The chip size of the MMIC VCO is 1.5 x 2.0 mm(2).
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2003-06
Language
English
Article Type
Article
Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.13, pp.229 - 231

ISSN
1531-1309
URI
http://hdl.handle.net/10203/81258
Appears in Collection
EE-Journal Papers(저널논문)
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