Filtering device and related wireless communication receiver

Dispensing – Siphon combined with discharge assistant

Reexamination Certificate

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C333S219000

Reexamination Certificate

active

07971756

ABSTRACT:
A filtering device includes an isolation substrate including a first plane and a second plane, a micro-strip line deposited on the first plane of the isolation substrate for transmitting signals, and a ground metal layer deposited on the second plane of the isolation substrate for providing grounding. A meander-shaped resonating cavity is formed in an area of the ground metal layer corresponding to an area of the micro-strip line, for generating a rejection band on the micro-strip line.

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patent: 2007/0052502 (2007-03-01), Koizumi et al.
patent: 2009/0181635 (2009-07-01), Yamada
Gashinova et al., “Novel Band-Pass Filter Utilizing S-shaped Slot Line Resonators”, 2003 IEEE MTT-S Digest, pp. 1081-1084.
Ahn et al., “A Design of the Low-Pass Filter Using the Novel Microstrip Defected Ground Structure”, IEEE Trans. on Microwave Theory & Techniques, vol. 49, No. 1, Jan. 2001, pp. 86-93.

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