Wave transmission lines and networks – Resonators
Reexamination Certificate
2008-07-08
2008-07-08
Pascal, Robert J. (Department: 2817)
Wave transmission lines and networks
Resonators
C333S208000, C333S204000
Reexamination Certificate
active
11349775
ABSTRACT:
A coupling structure for coupling to a circuit portion (6) in a coplanar-waveguide circuit (1) having ground conductors (2, 3) at both sides is disclosed. A signal input/output line (4) is provided at the center of the coplanar-waveguide circuit; and an inductive coupling portion (5) having an end of the signal input/output line short-circuited to one of the ground conductors and facing a part of the circuit portion via a first gap is also provided.
REFERENCES:
patent: 3451015 (1969-06-01), Heath
patent: 3745489 (1973-07-01), Cristal et al.
patent: 6262640 (2001-07-01), Tsujiguchi
patent: 0 068 345 (1983-01-01), None
patent: 0 431 234 (1991-06-01), None
patent: 1 562 255 (2005-08-01), None
Ma et al “Low Loss 5GHz Bandpass Filter Using HTS Coplanar Waveguide Quarter Wavelenght Resonator” 2002, IEEE MTT-S Digest, pp. 1967-1970.
Daisuke Koizumi, et al., “A 5-GHz Band Coplanar-Waveguide High Temperature Superconducting Filter Employing T-Shaped Input/Output Coupling Structure and Quarter-Wavelength Resonator”, Technical Report of IEICE, MW 2004-25, May 2004, pp. 55-60.
Tamio Kawaguchi, et al., “Design of a 5GHz Bandpass Filter Using CPW Quarter-Wavelength Spiral Resonators”, Proceedings of the 2004 IEICE Society Conference, C-2-81, Figs. 4 (a),(b), Nov. 2004, p. 97.
Tamio Kawaguchi, et al., “Design of a 5GHz Interdigital Bandpass Filter Using CPW Quarter-Wavelength Resonators”, Proceedings of the 2004 IEICE Society Conference, C-2-80, Fig. 4, Nov. 2004,p. 96.
Tamio Kawaguchi, et al., “A 5GHz Interdigital Bandpass Filter Using CPW Quarter-Wavelength Resonators”, Technical Report of IEICE, MW 2005-2, Apr. 2005, pp. 7-10 (with English Abstract).
Daisuke Koizumi, et al., “Experimental Investigation on a 5-GHz band interdigital bandpass filter using CPW quarter-wavelength resonators”, Technical Report of IEICE, MW2005-3, Apr. 2005, pp. 11-14 (with English Abstract).
Koizumi Daisuke
Narahashi Shoichi
Satoh Kei
Glenn Kimberly E
NTT DoCoMo Inc.
Pascal Robert J.
LandOfFree
Coupling structure, resonator excitation structure and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coupling structure, resonator excitation structure and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling structure, resonator excitation structure and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3954560