Phase equalizer

Details Phase equalizer Phase equalizer

1987-03-19

1989-04-04

Gensler, Paul

Wave transmission lines and networks

Coupling networks

Equalizers

333141, 333191, 333192, H03H 700, H03H 946, H03H 966

Patent

active

048189596

ABSTRACT:
A phase equalizer with a pair of ceramic resonators with different resonant frequencies than each other provides convex group delay time characteristics, which compensates for the concave group delay time characteristics of a ceramic filter. Thus, the flat group delay time characteristics in the combination of a ceramic filter and a phase equalizer is obtained, and excellent speech quality in analog signal transmission and/or excellent error rate in data transmission is obtained, while keeping excellent selectivity in a wireless communication system.

REFERENCES:
patent: 3569873 (1971-03-01), Beaver
patent: 3737814 (1973-06-01), Pond
patent: 4096454 (1978-06-01), Behrend
patent: 4287493 (1981-09-01), Masaie
Williams, Electronic Filter Design Handbook, McGraw-Hill, N.Y., 1981, Title page & pp. 7-20.fwdarw.7-22.

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