Wideband loop antenna

A loop antenna, antenna technology, applied in the direction of loop antenna, antenna, resonant antenna, etc., to achieve the effect of cheap manufacturing cost and good antenna matching

Inactive Publication Date: 2005-12-14
SONY ERICSSON MOBILE COMM AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention is to solve the problem of implementing a small antenna which requires only a small ground plane to obtain a defined bandwidth and which provides high efficiency near the human head

Method used

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  • Wideband loop antenna
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Embodiment Construction

[0053] A wireless communication device according to the present invention will now be explained. Preferably said wireless communication device is also portable and small. It is also preferred that said device is a headset, which is a preferred variant of the invention. It could also be configured with any other type of small portable communication device than a headset like a non-handheld device, but the invention could equally be provided with any other type of portable communication device, such as a mobile phone or even a common computer. The preferred type of device is for short-range high-frequency wireless communication such as Bluetooth TM device of.

[0054] FIG. 1 shows a schematic view of an earphone 10 including a body 12 , a microphone portion 16 and an ear fastening 14 . The body includes something like the Bluetooth TM Protocol working radio circuitry, batteries and speaker items, all of which are standard for this type of equipment.

[0055] FIG. 2 shows a ...

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Abstract

The present invention involves an antenna device used in wireless communication devices and this device. Among them, the circuit antenna component (18) includes: the first part of the first plane and extending a length in it (20), provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it, provided in it.The second part of the first plane and extending the second part (22) that extends a length of length, which provides the third part of the third part of the second plane that is basically parallel to the first plane.(24), and the fourth part (26) and fifth (28) that will be provided in the first and second planes.Each antenna has a three -dimensional structure, which has a general two -dimensional extension part of at least one of the first and second planes.The second part is the same as the same straight line extension as the first part or has a curve part, which is the continuation of the curve part in the first part.As a result, a small broadband band antenna that requires small ground planes is obtained.

Description

technical field [0001] The present invention relates to the field of antennas, and more particularly, to a wireless communication device including a loop antenna element, and to an antenna device for a wireless communication device. Background technique [0002] Antennas in the field of wireless communication devices, especially such extremely small devices as those used for short-range high-frequency communication, e.g. using Bluetooth TM The antenna in the device of the (Bluetooth) communication protocol has to be small because usually the devices used are small. Standard Bluetooth TM Examples of devices are headsets and hands-free devices that use Bluetooth TM Communicates with, for example, a cellular telephone. So these devices usually need to be small, while at the same time within a certain frequency band and at about 2GHz or higher Bluetooth TM situation can work. [0003] Typical antennas for these types of devices have so far been dipole antennas, monopole ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q7/00H01Q9/26
CPCH01Q1/241H01Q7/00H01Q9/26
Inventor H·罗森伯格H·吉德哈格B·斯文松
Owner SONY ERICSSON MOBILE COMM AB
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