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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6400339 B1

PDFFull Text
Date of Patent:
Jun. 04, 2002

Filed:

May. 17, 1999

Antenna device comprising capacitively coupled radiating elements and a hand-held radio communication device for such antenna device

Applicant:
Inventors:

Olov Edvardsson, Taby, SE;

Richard Bohannan, Langas, SE;

Thierry Bousquet, Clamart, FR;

Gianni Barone, Roma, IT;

Assignee:

Allgon AB, Akersberga, SE;

Attorney:

Jacobson Holman, PLLC

Primary Examiner:

Tho Phan

Assistant Examiner:

Trinh Vo Dinh

Int. Cl.
CPC ...
H01Q 1/36 ;
U.S. Cl.
CPC ...
H01Q 1/36 ;
Abstract

The object of the present invention is to achieve an antenna for both receiving and transmitting circularly polarized RF signals which is smaller and lighter than prior art antennas as well as to achieve one antenna for both receiving and transmitting circularly polarized RF signals which has better characteristics for a given physical length than prior art antennas. This is achieved by providing an N-helical-filar antenna with N radiating elements coaxially arranged and defining a cylindrical envelope where each individual radiating element is capacitively coupled to another radiating element.

Find Patent Forward Citations

Edvardsson, Olov. (2002). Antenna device comprising capacitively coupled radiating elements and a hand-held radio communication device for such antenna device (U.S. Patent No. 6400339). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6400339

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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