Bandpass filter and wireless communications equipment using...

Details Bandpass filter and wireless communications equipment using... Bandpass filter and wireless communications equipment using...

2006-04-28

2008-12-23

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S134000

Reexamination Certificate

active

07468643

ABSTRACT:
Disclosed is a bandpass filter comprising a first resonator1to a sixth resonator6having lengths of basically ¼ wavelength, an input section IN connected to an ungrounded end of the first resonator, and an output section OUT connected to an ungrounded end of the sixth resonator, wherein the second to fifth resonators2-5are electromagnetically coupled with each other, the second and the third resonators are respectively coupled to the first resonator via the first and the second capacitances C1,C2,the third and the fourth resonators are respectively coupled to the sixth resonator via the third and the fourth capacitances C3,C4,and the input section IN and output section OUT are coupled to the first resonator and sixth resonator through an input and output capacitances C5,C6,respectively. This bandpass filter can be a small size, low loss filter suitable for UWB (Ultra Wide Band).

REFERENCES:
patent: 5373271 (1994-12-01), Hirai et al.
patent: 6326866 (2001-12-01), Sasaki et al.
patent: 6696903 (2004-02-01), Kawahara et al.
patent: 2003/0085780 (2003-05-01), Wang
patent: 2002374102 (2002-12-01), None

Affiliated with

Also associated with

Rating

Bandpass filter and wireless communications equipment using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bandpass filter and wireless communications equipment using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bandpass filter and wireless communications equipment using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4027070