ONE-DIMENSIONAL METAMATERIAL-BASED DOUBLE-FREQUENCY CONDUCTIVITY/RESISTANCE INVERTER HAVING CUT-OFF BAND BETWEEN OPERATING FREQUENCIES Russian patent published in 2012 - IPC H01P5/00 

FIELD: physics.

SUBSTANCE: functions of the inverter are realised based on a basic circuit diagram which is a "П"/T-circuit consisting of six reactive elements, and specifically three inductors: L1, L2, L3 and three capacitors: C1, C2, C3, which form three LC oscillatory circuits in pairs, wherein in case of a pi-circuit, the reactive elements are connected as follows: L2 and C2 form a parallel circuit connected in series between input and output ports; the pairs of elements L1 and C1, as well as L3 and C3 form two identical series circuits, which are connected in parallel, one to the input port and the other to the output port; in case of a T-circuit, the reactive elements are connected as follows: pairs of elements L1 and C1, as well as L3 and C3 form two identical parallel circuits connected in series with respect to each other and to the input and output ports; elements L2 and C2 form a series circuit connected by one end to the point of connection of parallel circuits at the centre of the circuit; the second end of the series circuit is earthed.

EFFECT: improved method.

7 cl, 12 dwg