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Multi-band antenna for GSM, UMTS, and WIFI applications

A multi-band antenna and frequency band technology, which is applied to antennas, resonant antennas, antenna components, etc., can solve the problems of unrealistic multiple antennas, antennas that cannot cover at the same time, and will not cover frequency bands, etc.

Inactive Publication Date: 2009-05-27
SONY ERICSSON MOBILE COMM AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as manufacturers continue to design smaller mobile communication devices, it is becoming less and less practical to include multiple antennas in mobile communication devices
Also, while wideband antennas typically cover multiple frequency bands, they often do not cover all desired frequency bands
For example, while antennas may cover the 850MHz band commonly used in the United States or the 900MHz band commonly used in Europe, conventional antennas typically cannot cover both bands
Thus, a mobile communication device is generally only compatible with European networks or compatible with US networks

Method used

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  • Multi-band antenna for GSM, UMTS, and WIFI applications
  • Multi-band antenna for GSM, UMTS, and WIFI applications
  • Multi-band antenna for GSM, UMTS, and WIFI applications

Examples

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Embodiment Construction

[0011] figure 1 An exemplary multi-band mobile communication device 10 is shown that uses a single multi-band antenna 100 to transmit and receive wireless signals in multiple frequency bands. The mobile communication device 10 includes a controller 12 , a memory 14 , a user interface 16 and a transceiver system 20 . Controller 12 controls the operation of wireless communication device 10 in response to programs stored in memory 14 and instructions provided by a user via user interface 16 . Transceiver system 20 includes a plurality of transceivers 22-26 that communicate via a single multi-band antenna 100 with base stations in a wireless communication network (not shown) for two-way wireless voice and data signals. Transceivers 22-26 may be full-featured cellular radio transceivers operating in accordance with any known standard, including those commonly referred to as GSM, TIA / EIA-136, cdmaOne, cdma2000, UMTS, UNII, and Wideband CDMA . In one embodiment, different transcei...

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PUM

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Abstract

The multi-band antenna described herein includes multiple antenna elements that collectively resonate in multiple different frequency bands. One exemplary antenna includes first and second vertically spaced antenna elements that connect to a ground plane. A feed antenna element positioned between the first and second antenna elements connects to an antenna feed. The electromagnetic coupling produced by the arrangement of these antenna elements produces multiple resonant frequencies, and therefore, defines multiple operating frequency bands of the multi-band antenna.

Description

Background technique [0001] The present invention relates generally to antennas for mobile communication devices, and more particularly to multi-band antennas covering multiple frequency bands. [0002] Currently, wireless networks operate according to multiple communication standards and / or over a wide range of frequency bands. To accommodate multiple frequency bands and / or multiple communication standards, many mobile communication devices include broadband antennas covering multiple frequency bands or include different antennas for each frequency band. However, as manufacturers continue to design smaller mobile communication devices, it becomes less and less practical to include multiple antennas in a mobile communication device. Furthermore, although wideband antennas typically cover multiple frequency bands, they typically do not cover all desired frequency bands. For example, although an antenna may cover the 850 MHz frequency band commonly used in the United States or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q5/00H01Q9/04H01Q5/10H01Q5/371H01Q5/385H01Q5/392
CPCH01Q9/0414H01Q1/243H01Q5/0068H01Q5/0065H01Q5/0058H01Q5/371H01Q5/385H01Q5/392
Inventor M·许
Owner SONY ERICSSON MOBILE COMM AB
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