Broadband Impedance Matching Techniques for Microwave Amplifiers [10-12] GHz

M. Lahsaini(1*), L. Zenkouar Zenkouar(2), S. Bri(3)

(1) Electronic and Communication Laboratory, Mohammadia School of Engineers, EMI, Mohammed V University, Agdal, Rabat, Morocco
(2) Electronic and Communication Laboratory, Mohammadia School of Engineers, EMI, Mohammed V University, Agdal, Rabat, Morocco
(3) Materials and Instrumentation Group, High School of Technology, ESTM, Moulay Ismail University, Meknes, Morocco
(*) Corresponding author

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In this paper, we have modeled a low noise amplifier that we have adapted by band pass coupled resonator filters, using two adaptation techniques, the first is based on filters on a distributed elements and the second based on a combination of distributed and localized elements.
We have used two kinds of transistors that are the FET and the HEMT. The obtained results showed that this amplifier is unconditionally stable in the whole band [10-12] GHz. Moreover, the gain is satisfactory. The reflection coefficients of the input and output S11 and S22 are low. The modeled amplifier in this work can be integrated in radar systems and satellite transmission and reception systems.

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Amplifier; Impedance Matching; Filters; Coupled Resonators

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