Hairpin band pass filter and related frequency down converter

Details Hairpin band pass filter and related frequency down converter Hairpin band pass filter and related frequency down converter

2009-02-23

2011-11-01

Nguyen, Hai L (Department: 2816)

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

C455S285000

Reexamination Certificate

active

08050650

ABSTRACT:
A band pass filter includes a first micro-strip port for receiving a radio-frequency signal, a second micro-strip port for outputting a filtered radio-frequency signal and comprising at least one resonating cavity formed for enhancing rejecting effect of image frequency corresponding to the filtered radio-frequency signal, and a plurality of resonators arranged between the first micro-strip port and the second micro-strip port for performing band pass filtering on the radio-frequency signal to generate the filtered radio-frequency signal.

REFERENCES:
patent: 5995818 (1999-11-01), Smith
patent: 7142836 (2006-11-01), Yang
patent: 7174147 (2007-02-01), Toncich et al.
patent: 7289784 (2007-10-01), Nam

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