Antenna and an antenna feed structure

Details Antenna and an antenna feed structure Antenna and an antenna feed structure

2007-09-04

2009-12-15

Dinh, Trinh V (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S860000, C343S850000

Reexamination Certificate

active

07633459

ABSTRACT:
A dielectrically-loaded helical antenna has a ceramic cylindrical core and, formed on the cylindrical surface of the core, a plurality of conductive helical antenna elements. The antenna elements are coupled to a pair of feed connection conductors generally centrally located on an end surface of the core, the coupling between the antenna elements and the feed connection conductors being by way of a matching section comprising a laminate board having at least three conductive layers and insulative layers between the conductive layers arranged in an alternating manner. Each conductive layer has a first portion forming part of a respective shunt capacitance, the conductive layers and the insulative layers together acting to form a plurality of capacitors shunt-connected across the antenna elements. One of the conductive layers includes a second portion forming a series inductance between one of the feed connection conductors and at least one of the antenna elements.

REFERENCES:
patent: 3599220 (1971-08-01), Dempsey
patent: 4008479 (1977-02-01), Smith
patent: 4554554 (1985-11-01), Olesen et al.
patent: 4608574 (1986-08-01), Webster et al.
patent: 5191352 (1993-03-01), Branson
patent: 5346300 (1994-09-01), Yamamoto et al.
patent: 5349365 (1994-09-01), Ow et al.
patent: 5635945 (1997-06-01), McConnell et al.
patent: 5838282 (1998-11-01), Lalezari et al.
patent: 5854609 (1998-12-01), Pyo et al.
patent: 5945963 (1999-08-01), Leisten
patent: 5963180 (1999-10-01), Leisten
patent: 6011524 (2000-01-01), Jervis
patent: 6031495 (2000-02-01), Simmons et al.
patent: 6094178 (2000-07-01), Sanford
patent: 6133891 (2000-10-01), Josypenko
patent: 6150984 (2000-11-01), Suguro et al.
patent: 6229488 (2001-05-01), Lin et al.
patent: 6229499 (2001-05-01), Licul et al.
patent: 6232929 (2001-05-01), Ermutlu et al.
patent: 6300917 (2001-10-01), Leisten et al.
patent: 6369776 (2002-04-01), Leisten et al.
patent: 6384798 (2002-05-01), Barta et al.
patent: 6476776 (2002-11-01), Kurby
patent: 6480173 (2002-11-01), Marino
patent: 6552693 (2003-04-01), Leisten
patent: 6690336 (2004-02-01), Leisten et al.
patent: 6765541 (2004-07-01), Josypenko
patent: 6821859 (2004-11-01), Raebiger et al.
patent: 6886237 (2005-05-01), Leisten et al.
patent: 6914580 (2005-07-01), Leisten
patent: 7256752 (2007-08-01), Wither et al.
patent: 2002/0113731 (2002-08-01), Strickland
patent: 2006/0067419 (2006-03-01), Sandhu
patent: 2006/0082517 (2006-04-01), Chung et al.
patent: 2899134 (2007-05-01), None
patent: 0469741 (1992-02-01), None
patent: 0528175 (1993-02-01), None
patent: 1076378 (2001-02-01), None
patent: 1306921 (2003-05-01), None
patent: 587627 (1947-05-01), None
patent: 2202638 (1988-09-01), None
patent: 2282487 (1995-04-01), None
patent: 2292257 (1996-02-01), None
patent: 2292638 (1996-02-01), None
patent: 2310543 (1997-08-01), None
patent: 2311675 (1997-10-01), None
patent: 2338605 (1999-12-01), None
patent: 2351850 (2001-01-01), None
patent: 2367429 (2002-04-01), None
patent: 2419037 (2006-04-01), None
patent: 2424521 (2006-09-01), None
patent: 02278901 (1990-11-01), None
patent: 2004040596 (2004-02-01), None
patent: 1238566 (1993-07-01), None
patent: M276332 (2005-02-01), None
patent: 1248230 (2006-01-01), None
patent: WO 99/26316 (1999-05-01), None
patent: WO 99/31820 (1999-06-01), None
patent: WO0048268 (2000-08-01), None
patent: WO03044895 (2003-05-01), None
patent: WO2006136809 (2006-12-01), None
patent: WO2006136810 (2006-12-01), None

Affiliated with

Also associated with

Rating

Antenna and an antenna feed structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Antenna and an antenna feed structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna and an antenna feed structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4122534