Non-reciprocal network element that produces an input impedance that is a product of its load impedances
AssigneeLucent Technologies Inc.
InventorSatyabrata Chakrabarti
Life of this patent
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Abstract
The Impedance Product Operator can be implemented in a number of embodiments to produce a new non-reciprocal (n+1)-port network element with the distinguishing property that if n 2-termial impedances, Z2, . . . Zn+1 are connected at ports 2, . . . , n+1 of an Impedance Product Operator, the input impedance offered by this loaded multi-port at port 1 is Z ( 1 ) = ∏ k = 2 n + 1 Z k . As a single network element, the Impedance Product Operator offers a direct yet general mechanism for multiplication of 2-terminal impedance functions. This network element allows simpler and more direct synthesis of driving point impedance functions.
Claims16
A non-reciprocal n-port network element for presenting a determinable impedance at an input port, comprising:
- a 2-terminal input port;
- (n−1) 2-terminal load ports, where n is a positive integer greater than 2, each of said (n−1) 2-terminal load ports terminating a 2-terminal impedance load element;
- and
- means for presenting an impedance on said 2-terminal input port that comprises a product of the impedances of said 2-terminal load elements terminated at said (n−1) 2-terminal load ports.
A method for presenting a determinable impedance at a 2-terminal input port using a non-reciprocal n-port network element, comprising:
- terminating (n−1) 2-terminal load ports, where n is a positive integer greater than 2, each of said (n−1) 2-terminal load ports terminating a 2-terminal impedance load element;
- and
- presenting an impedance on said 2-terminal input port that comprises a product of the impedances of said 2-terminal load elements terminated at said (n−1) 2-terminal load ports.
Dependencies are inferred from the claim text.