Branching filter having specific impedance and admittance charac

Wave transmission lines and networks – Plural channel systems – Having branched circuits

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333129, 333132, 333134, 333202, 455 82, 455 83, H01P 1213, H03H 746

Patent

active

053231279

ABSTRACT:
A branching filter in which an input/output port, a first dielectric filter for use in transmission and a second dielectric filter for use in reception are coupled with each other through a branching filter circuit. The branching filter circuit includes a first line provided between the input/output port and an input port of the second dielectric filter, a second line provided between the input/output port and an output port of the first dielectric filter, and a third line provided between the input/output port and the ground. In the filter, conductor lines for use in connection between ports are used for the first and second lines.

REFERENCES:
patent: 5015973 (1991-05-01), Kawakami et al.
patent: 5023866 (1991-06-01), DeMuro
Kunemund et al., "Veranderbare Bandpasse und Weichen fur Zenitmeterwellen," Entwick lungsberichte, vol. 25, No. 2, pp. 117-122 (Nov. 19, 1962).

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