Antenna Configurations for Compact Device Wireless Communication

• US 20090115670A1
• Filed: 09/03/2008
• Published: 05/07/2009
• Est. Priority Date: 09/04/2007
• Status: Active Grant

• Current Assignee: NETGEAR, Inc.
• Original Assignee: Sierra Wireless Incorporated
• Inventors: Nysen, Paul A.
• Granted Patent: US 7,916,090 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/2275 associated to expansion card or bus, e.g. in PCMCIA, PC cards, Wireless USB
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 5/364 Creating multiple current paths
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407
• CPC Class Codes: H01Q 9/36 with top loading
• CPC Class Codes: H04B 1/3816 Mechanical arrangements for accommodating identification devices, e.g. cards or chips; with connectors for programming identification devices

Abstract

A wireless communication device is configured to provide wireless communication to a host device when disposed in a mated position with the host device such that a housing of the wireless communication device extends a distance Lid from a face of the host device. The wireless communication device includes a transceiver, a controller in communication with the transceiver, and a modem in communication with the controller. The wireless communication device also includes a dipole antenna having a dipole effective current axis Ix for a selected wavelength λ in the mated position that is at a distance from the face of the host device that is in the range of about 0.09λ to about 0.25λ.

Claims

1. A wireless communication device configured to provide wireless communication to a host device when disposed in a mated position with the host device such that a housing of the wireless communication device extends a distance Lid from a face of the host device, the wireless communication device comprising:

a transceiver;

a controller in communication with the transceiver;

a modem in communication with the controller; and

a dipole antenna having a dipole effective current axis Ix for a selected wavelength λ

in the mated position that is at a distance from the face of the host device that is in the range of about 0.09λ

to about 0.25λ

.

2. The wireless communication device of claim 1, wherein the dipole effective current axis Ix in the mated position is at a distance from the face of the host device that is in the range of about 0.15λ

to about 0.25λ

.

3. The wireless communication device of claim 1, wherein the dipole effective current axis Ix in the mated position is at a distance from the face of the host device that is about 0.25λ

.

4. The wireless communication device of claim 1, wherein the dipole antenna is a notch antenna.

5. The wireless communication device of claim 1, wherein the dipole antenna is a top-loaded dipole antenna.

6. The wireless communication device of claim 5, wherein the top-loading is disposed in folded configuration.

7. The wireless communication device of claim 5, further including a meander chock/inductor.

8. A wireless communication device configured to provide wireless communication to a host device when disposed in a mated position with the host device such that a housing of the wireless communication device extends a distance Lid from a face of the host device, the wireless communication device comprising:

transceiver means;

controller means coupled to the transceiver means;

modem means coupled to the controller means; and

means for transmitting and receiving RF signals and having an effective current axis Ix for a selected wavelength λ

in the mated position that is at a distance from the face of the host device that is in the range of about 0.09λ

to about 0.25λ

.

9. The wireless communication device of claim 8, wherein the effective current axis Ix in the mated position is at a distance from the face of the host device that is in the range of about 0.15λ

to about 0.25λ

.

10. The wireless communication device of claim 8, wherein the effective current axis Ix in the mated position is at a distance from the face of the host device that is about 0.25λ

.