Branching filter for transmitter-receiver

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

H - Electricity

01

P

H01P 1/20 (2006.01) H01P 1/213 (2006.01)

Patent

CA 2139048

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 compact-size one body having no patch or linking portion.

Filtre de dérivation pour émetteur-récepteur qui est utilisé dans une bande d'hyperfréquence. Comprend un transducteur à mode orthogonal (filtre de dérivation de guide d'onde), un filtre de réception comprenant un filtre éliminateur de bande 4 qui est connecté au prolongement de l'axe central du guide d'onde du transducteur en mode orthogonal, et un filtre de transmission composé d'un filtre passe-haut contenant un guide d'onde évanescent directement et orthogonalement connecté au transducteur en mode orthogonal. Les parties du filtre de dérivation de l'émetteur-récepteur sont fabriquées d'un seul tenant suivant la technique de la cire perdue. Par conséquent, le filtre de dérivation de l'émetteur-récepteur peut se fabriquer en format compact, d'un seul tenant, sans pièces rapportées ni raccords.

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