Impedance matching filter

Claim 1

ELECTRICAL APPARATUS FOR TRANSMITTING ELECTRICAL ENERGY OVER A PRESCRIBED RANGE OF FREQUENCIES AND PRESENTING A FIRST IMPEDANCE AT ITS INPUT WHEN ITS OUTPUT IS TERMINATED IN A SECOND IMPEDANCE COMPRISING, A COMMON TERMINAL, A FIRST TERMINAL FORMING SAID INPUT WITH SAID COMMON TERMINAL, A SECOND TERMINAL FORMING SAID OUTPUT WITH SAID COMMON TERMINAL, A TRANSMISSION LINE CONNECTED TO SAID INPUT AND PRESENTING AN IMPEDANCE TO SAID INPUT WITHIN A SMALL RANGE OF VALUES INCLUDING THE VALUE OF SAID SECOND IMPEDANCE, SAID OUTPUT BEING TERMINATED IN SAID SECOND IMPEDANCE, ADJUSTABLE INPUT AND OUTPUT REACTIVE ELEMENTS PRESENTING A REACTANCE OF ONE OF EFFECTIVE INDUCTIVE REACTANCE AND EFFECTIVE CAPACITIVE REACTANCE WITHIN SAID PRESCRIBED FREQUENCY RANGE CONNECTED TO SAID FIRST AND SECOND TERMINAL RESPECTIVELY, A TRANSFER REACTIVE ELEMENT PRESENTING A REACTANCE CORRESPONDING TO THE OTHER OF SAID EFFECTIVE INDUCTIVE REACTANCE AND SAID EFFECTIVE CAPACTIVE REACTANCE WITHIN SAID PRESCRIBED FREQUENCY RANGE AND CONNECTED TO BOTH SAID INPUT AND OUTPUT ELEMENTS, A FUNCTION OF A REACTIVE COMPONENT OF SAID OUTPUT REACTIVE ELEMENT BEING RELATED TO A REACTIVE COMPONENT OF SAID TRANSFER REACTIVE ELEMENT WITHIN SAID PRESCRIBED FREQUENCY RANGE AND NONLINEARLY RELATED THERETO OUTSIDE SAID FREQUENCY RANGE TO ESTABLISH SAID FIRST IMPEDANCE AT SAID INPUT, SAID EFFECTIVE INDUCTIVE REACTANCE BEING DIFFERENT FROM SAID EFFECTIVE CAPACITIVE REACTANCE WITHIN SAID PRESCRIBED FREQUENCY RANGE, SAID INPUT AND OUTPUT REACTIVE ELEMENTS BEING ADJUSTABLE TO THE SAME VALUE WHICH RESULTS IN SAID SECOND IMPEDANCE BEING PRESENTED AT SAID INPUT WITHIN SAID PRESCRIBED FREQUENCY RANGE.