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Dual-polarized, multiple strip-loop antenna and associated methodology, for radio device

A technology of radio equipment and antenna devices, which is applied in loop antennas, antenna unit combinations with different polarization directions, shielded loop antennas, etc., and can solve problems such as high cross-polarization levels

Active Publication Date: 2014-04-16
BLACKBERRY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive coupling numbers lead to high cross-polarization levels

Method used

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  • Dual-polarized, multiple strip-loop antenna and associated methodology, for radio device
  • Dual-polarized, multiple strip-loop antenna and associated methodology, for radio device
  • Dual-polarized, multiple strip-loop antenna and associated methodology, for radio device

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Embodiment Construction

[0020] Thus, the present invention advantageously provides antenna devices and related methods for portable radio devices, such as Bluetooth compatible or 802.11 compatible devices capable of operating in the IMS (Industrial, Medical and Scientific) frequency band.

[0021] Through operation of an embodiment of the present invention, a dual polarized antenna having a compact structure is provided. The antenna can be located on or inside the wireless housing of the portable radio.

[0022] In one aspect of the invention, the antenna consists of an annulus etched on a substrate configured to resonate at a selected frequency band, such as at 2.47 GHz. The size of the substrate allows it to be located within the housing of a portable radio, such as a radio that may operate in a Bluetooth compliant or 802.11 compliant system, with an annulus etched thereon. The signal energy is polarized in an orthogonal or other direction. The transformed signal energy generated at the radio is ...

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PUM

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Abstract

A dual-polarized antenna, and an associated methodology, is provided for a radio device, such as a mobile station. The antenna is formed of a plurality of loop strips disposed upon a substrate. The loop strips are configured into a pair of L-cornered loops, with the loops sharing a shared set of loop strips. A loop strip of the shared set provides a single feed connection, positioned to permit symmetrical excitation of the antenna.

Description

technical field [0001] The present invention mainly relates to antennas for portable radio devices, such as Bluetooth-enabled or IEEE 802.11-enabled devices operating in the IMS (Industrial, Medical and Scientific) frequency band. More particularly, the present invention relates to dual polarized antennas and related methods that have a compact structure and can be located on or within the radio housing of a portable radio device. [0002] An L-angle antenna loop formed by an annular strip is placed on the substrate. The annular strip extends along either the first polarization direction or the second polarization direction, and the second polarization direction is perpendicular to the first polarization direction. The annular strips are multi-dimensional and connected together to resonate in the IMS frequency band, or other selected frequency bands in orthogonal polarization directions. Background technique [0003] Wireless communication systems are widely used for commu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/24H01Q21/30H01Q1/38
CPCH01Q1/243H01Q1/38H01Q7/00H01Q9/26H01Q7/04
Inventor 饶勤疆温戈宜马克·佩森
Owner BLACKBERRY LTD