Circuit arrangement for reducing passband ripple of a bandpass f

Details Circuit arrangement for reducing passband ripple of a bandpass f Circuit arrangement for reducing passband ripple of a bandpass f

1998-01-23

2000-02-08

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333134, 333222, 455307, 455311, H01P 120

Patent

active

060232056

ABSTRACT:
A bandpass filter arrangement that includes a weakly coupled coaxial resonator to reduce the fluctuation in frequency response of the filter arrangement. A bandpass filter is coupled to the output of a low noise amplifier. The characteristic fluctuation in frequency response in the passband of the bandpass filter is reduced with a coaxial resonator that is disposed proximate the filter arrangement.

REFERENCES:
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patent: 5630225 (1997-05-01), Corman
patent: 5703545 (1997-12-01), Dullberg et al.
patent: 5774027 (1998-06-01), Yamamoto

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