a complete procedure for the design of w-band low noise amplifier in mmic technology is presented. the design is based on a simultaneously power and noise matched technique. for implementing the method, scalable bilateral transistor model parameters should be first extracted. the model is also used for transmission line utilized in the amplifier circuit. in the presented method, input/output ma...

Let $G$ be an arbitrary group. We define a gain-line graph for gain $(\Gamma,\psi)$ through the choice of incidence $G$-phase matrix inducing $\psi$. prove that switching equivalence class function on line $L(\Gamma)$ does not change if one chooses different $\psi$ or representative In this way, we generalize to any group some results proven by N. Reff in abelian case. The investigation orbits ...

A highly efficient frequency-controlled sound source based on a tunable high-Q underwater acoustic resonator is described. The required spectrum width was achieved by transmitting a linear frequency-modulated signal and simultaneously tuning the resonance frequency, keeping the sound source in resonance at the instantaneous frequency of the signal transmitted. Such sound sources have applicatio...