Resonator and bandpass filter having overlay electromagnetic...

Details Resonator and bandpass filter having overlay electromagnetic... Resonator and bandpass filter having overlay electromagnetic...

2011-08-23

2011-08-23

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S204000, C333S219000, C333S235000

Reexamination Certificate

active

08004375

ABSTRACT:
Provided is an Electromagnetic Bandgap (EBG) structure, particularly, a resonator and a bandpass filter having an overlay EBG structure, and a method of manufacturing the resonator. The resonator is manufactured by forming a transmission line and ground plates on a substrate, arranging a plurality of reflector units at regular intervals along the longitudinal direction of the transmission line, and removing at least one reflector among the plurality of reflectors, thus forming a common resonating mode. Therefore, since reflector units constructing capacitance components are separated from a substrate, it is possible to prevent electromagnetic waves from leaking out of the substrate and ensure a high Q characteristic in a high frequency environment due to a resonating unit formed between the reflector units.

REFERENCES:
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Lee et al, “The super high frequency and the millimeter wave band package having the low pass filtering roofing tile low pass filters using the new PBG structure built-in”, Sep. 3, 2003, English language translation of Korean application No. 1020030011969.

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