A 24 GHz PHEMT-based oscillator
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Presents a systematic nonlinear procedure for designing microwave oscillators utilising a nonlinear PHEMT model, the negative resistance approach and the describing function concept. The procedure is applied in the design of a 24 GHz oscillator which is then realised in hybrid technology. Measurement results show -6% shift in the frequency but an acceptable agreement in the output power. A detailed analysis shows that the frequency shift arises mainly from inadequate CAD models in the K-band, for the microstrip components employed in the design.
Published in:
Microwaves, Radar and Wireless Communications, 2002. MIKON-2002. 14th International Conference on
(Volume:2
)
Date of Conference: 2002