A new design approach based on wave analysis has been implemented in order to derive voltage gain, center frequency and bandwidth of millimeter wave amplifier using parameters of transmission lines (TL). The derived formula allows one to design high frequency amplifier with predetermined bandwidth and centner frequency. It has been shown that in the case of lossy TL or at high frequency, circuit theory cannot predict the amplifier gain behavior while presented wave theory can accurately predict the frequency response of the amplifier in both low and high frequency ranges.
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