Resonator filter with improved adjacent channel selectivity

Details Resonator filter with improved adjacent channel selectivity Resonator filter with improved adjacent channel selectivity

2005-05-17

2005-05-17

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S196000, C310S31300R

Reexamination Certificate

active

06894588

ABSTRACT:
For improving the adjacent channel selectivity of a resonator filter, reflectors of resonators are differently designed so that the minimums of the reflection functions of different reflectors of a resonator are shifted relative to one another and preferably compensate with the corresponding maximum of the respectively other reflection function. This reduces noise spikes at the low-frequency side of the pass-band of corresponding resonator filters and, thus, improves the adjacent channel selectivity.

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