METHOD AND DEVICE FOR MATCHING RANDOM IMPEDANCES IN DIGITAL FREQUENCY RANGE Russian patent published in 2005 - IPC

FIELD: radio communications and microwave engineering.

SUBSTANCE: proposed method for matching random impedances in 2N digital frequency range can be used in designing load-to-transfer-line matching devices including antenna-to-transmitter (receiver) ones and multiplexers at desired number of fixed frequencies and includes insertion of dc reactance units between component being matched on input end and that on output end; connection of common input of divider for N frequency channels to component being matched on input end; connection of adder for N frequency channels to component being matched on output end; connection of each adder channel through channel matching device to divider channel corresponding to same frequency; input impedances of each channel matching device are produced provided component being matched on input end is matched with input impedances of each matching device on divider end, component being matched on output end is matched with input impedances of each channel matching device on adder end, and provided these matching operations are physically possible. Device implementing proposed method has divider for N frequency channels connected through common input to component being matched on input end, adder for N frequency channels connected through common input to component being matched on output end; divider and adder channels corresponding to same digital frequency values are interconnected by means of N channel matching devices to form T-joints of three reactive two-terminal networks whose reactances are chosen on condition that input impedances of N channel matching devices equal impedance of component being matched on input end with impedance load on component being matched on output end, and vice versa, on condition that frequency channels are isolated and operations are physically possible at inherent frequency in each channel.

EFFECT: provision for concurrent matching of component random impedances on input and output ends at all mentioned digital frequencies.

2 cl, 10 dwg