A BIDIRECTIONAL AMPLIFIER

摘要

A bidirectional amplifier has first and second two-terminal ports (P1, P2) each capable of acting as either an input or an output for said amplifier. A field effect type transistor (FT1) is connected in common gate mode with the common (or grounded) terminal (T2, T4) of each of said ports (P1, P2) being at least AC connected with the gate (G) of said transistor (FT1), and the source (S) and drain (D) of said transistor (FT1) being respectively connected to a corresponding one of the other terminals (T1, T3) of said ports (P1, P2) via an impedance matching device (N1, L1, N3, L3).