Filter apparatus with circulator for use in radio apparatus tran

Details Filter apparatus with circulator for use in radio apparatus tran Filter apparatus with circulator for use in radio apparatus tran

1996-02-21

1999-11-16

Pascal, Robert

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333202, 333234, H01P 512, H01P 120, H01P 710

Patent

active

059865202

ABSTRACT:
Disclosed are a filter apparatus for use in a radio apparatus for multiplex radio communication used when a signal is branched, a jig for arranging dielectrics of the filter apparatus for use in a radio apparatus and a method for arranging dielectrics of the filter apparatus for use in a radio apparatus using the jig. A filter apparatus for use in a radio apparatus has a pair of dielectric filters having different frequency characteristics, which are connected to a common circulator, thereby reducing the number of the circulators to realize a reduction of size and a low cost of the radio apparatus and improvement of accuracy in communication.

REFERENCES:
patent: 4121181 (1978-10-01), Nishikawa et al.
patent: 5087902 (1992-02-01), Hyuga et al.
patent: 5546057 (1996-08-01), Pfitzenmaier

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