US 6,664,930 B2Granted

Multiple-element antenna

AssigneeResearch In Motion Limited

InventorsGeyi Wen, Yihong Qi, Krystyna Bandurska, Perry Jarmuszewski

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Abstract

A multiple-element antenna is provided that includes a monopole portion and a dipole portion. The monopole portion has a top section, a middle section, and a bottom section. The middle section defines a recess between the top and bottom sections, and the bottom section includes a monopole feeding port configured to couple the monopole portion of the multiple-element antenna to communications circuitry in a mobile communication device. The dipole portion has at least one dipole feeding port configured to couple the dipole portion of the multiple-element antenna to communications circuitry in the mobile communications device. The dipole portion of the multiple-element antenna is positioned within the recess defined by the monopole portion of the multiple-element antenna in order to electromagnetically couple the monopole portion with the dipole portion.

Claims37

Dependent claims

A multiple-element antenna for a mobile communication device, comprising:

a monopole portion having a top section, a middle section and a bottom section, wherein the middle section defines a recess between the top and bottom sections, and wherein the bottom section includes a monopole feeding port configured to couple the monopole portion of the multiple-element antenna to communications circuitry in the mobile communication device;
and
a dipole portion having at least one dipole feeding port configured to couple the dipole portion of the multiple-element antenna to communications circuitry in the mobile communications device;
wherein the dipole portion of the multiple-element antenna is positioned within the recess defined by the monopole portion of the multiple-element antenna in order to electromagnetically couple the monopole portion with the dipole portion;
wherein the bottom section of the monopole portion includes a gain patch and the dipole portion includes a load patch, and wherein the gain patch is positioned in close proximity to the load patch in order to increase the gain of the monopole and dipole portions.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/119,079Filed 9 Apr 2002 · us provisional application
Priority: 12 Apr 2001
Published: US 2002/0149527 A117 Oct 2002
Granted: 16 Dec 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H01Q 1/38
Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith: formed by a conductive layer on an…
H01Q 5/40
Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements: imbricated or…
H01Q 9/28
With feed intermediate between the extremities of the antenna, e.g. centre-fed dipole: conical, cylindrical, cage, strip, gauze, or like elements…
H01Q 9/40
With feed to end of elongated active element, e.g. unipole: element having extended radiating surface