Branching filter for transmitter-receiver

Details Branching filter for transmitter-receiver Branching filter for transmitter-receiver

1994-12-23

1996-11-19

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333 21A, 333208, H01P 516

Patent

active

055766706

ABSTRACT:
A branching filter for a transmitter-receiver which is used in a microwave band comprising an orthogonal-mode transducer (waveguide branching filter), a reception filter comprising a band-eliminating filter 4 which is connected to the extension of the center axis of the waveguide of the orthogonal-mode transducer, and a transmission filter comprising a high pass filter containing a cut off waveguide which is directly and orthogonally connected to the orthogonal-mode transducer. The parts of the branching filter for the transmitter-receiver are integrally manufactured as one body by a lost wax process. Therefore, the branching filter for the transmitter-receiver can be manufactured as a compact-size single body having no patch or linking portion.

REFERENCES:
patent: 2747184 (1956-05-01), Kock
patent: 4653568 (1987-03-01), Baldelli
patent: 4783639 (1988-11-01), Hudspeth et al.
patent: 4908523 (1990-03-01), Snowden et al.
patent: 5243306 (1993-09-01), Minowa et al.
patent: 5276456 (1994-01-01), Kim
patent: 5291650 (1994-03-01), Carvelho et al.
Patent Abstract Of Japan vol. 006, No. 088 (P-118), 26 May 1982 & JP-A-57 025022 (Toshiba Corp.), 9 Feb. 1982.

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