Optimal CAD MESFETs frequency multipliers with and without feedback

Chaoing Guo (1) , Edouard Ngoya (1) , Raymond Quéré (1) , Juan Obregon (1) , Marc Camiade

1 IRCOM - Institut de Recherche en Communications Optiques et Microondes

A method is proposed for deriving the optimal operating conditions of a given MESFET needed to obtain an optimal frequency multiplier. The key point of this approach is that no topology of the embedding network is to be chosen a priori. The optimum bias voltages and the optimum load impedances (including possible feedback circuit) are found. The method has been applied to design doublers at low frequencies from 10-20 GHz and at millimeter-wave frequencies from 20-40 GHz. Although the experimental doublers are still under measurement, first results have given good agreement with theoretical predictions

Domaines: Electronique

Chaoing Guo, Edouard Ngoya, Raymond Quéré, Juan Obregon, Marc Camiade. Optimal CAD MESFETs frequency multipliers with and without feedback. Microwave Symposium, 1988, IEEE MTT-S International, Jan 1988, New York, United States. pp.1115 - 1118, ⟨10.1109/MWSYM.1988.22226⟩. ⟨hal-00925038⟩