Circuit for crossing strip lines

Wave transmission lines and networks – Plural channel systems

Patent

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Details

333246, H01P 512

Patent

active

054324858

ABSTRACT:
A cross circuit comprises a lattice structure formed on a single layer of a multilayer printed circuit, the lattice structure having an arrangement of nodes consisting of two input nodes, two output nodes, a center node and four other nodes which are connected by quarter-wavelength lines. An input node is connected to both a first node and a second node by a quarter-wavelength line, and the other input node is connected to both the first node and a third node by a quarter-wavelength line. Similarly, an output node is connected to both the third node and a fourth node, the other output node to both the fourth node and the second node, the center node to the four nodes, by quarter-wavelength lines, respectively. A first input signal of a predetermined frequency applied to the first input node appears on only the first output node, and the second input signal of the same frequency applied to the second input node appears on only the second output node.

REFERENCES:
patent: 4525690 (1985-06-01), De Ronde
patent: 5304961 (1994-04-01), Dydyk

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