TRANSPONDER Russian patent published in 1995 - IPC

FIELD: radio engineering. SUBSTANCE: transponder has receiving dipole tuned to interrogation frequency f_o, (N+1) amplifiers, (N+1) frequency multipliers, each made in the form of diode, power unit, (N+1) switching components, and (N+1) transmitting dipoles tuned to various frequencies (n+K)·f_o, where n≥ 2, K 1,2, Amplifiers employ a push-pull circuit arrangement, their balanced inputs are connected to receiving dipole terminals and their balanced outputs, to terminals respective transmitting dipole, respective diode, and respective switching component. Response is encoded by closing terminal of respective transmitting dipole. EFFECT: enlarged functional capabilities. 1 dwg