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Transmit and receiving antenna diversity apparatus and communication method

An antenna device, antenna technology, applied in diversity/multi-antenna systems, antennas, antenna arrays, etc., to solve problems such as the inability to guarantee acceptable or stable transmission and/or reception conditions

Inactive Publication Date: 2012-10-10
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Therefore, since the position and / or direction of the communication device determines the polarization plane change of the signal, when the above-mentioned diversity antenna device is used for radio communication at home, office or the like or for various portable communication devices, there is no guarantee that Accepted or stable transmission and / or reception conditions

Method used

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  • Transmit and receiving antenna diversity apparatus and communication method
  • Transmit and receiving antenna diversity apparatus and communication method
  • Transmit and receiving antenna diversity apparatus and communication method

Examples

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Embodiment Construction

[0027] Image 6 with Figure 7 The portable communication device 1 having the diversity antenna device is deleted. The portable communication device 1 is suitable for transmitting and / or receiving various information signals by radio communication. Additionally, such communication devices may have relatively small size and weight. It should be noted that the present invention is not limited to use with such portable communication devices, but can be used with other devices that transmit and / or receive various types of information by radio communication.

[0028] The portable communication device 1 may include first to fourth antennas 10 , 11 , 12 and 13 disposed on one or more faces of the portable communication device body 2 . For example, the antennas 10 and 13 may be provided on one face of the body 2 and the antennas 11 and 12 may be provided on the opposite face. The portable communication device 1 may include a receiving circuit 3 arranged in a device body 2 ( Figu...

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Abstract

A diversity antenna apparatus and method adaptable for use with communication equipment is provided which can assure an acceptable transmission and / or reception condition in three principle dimensional (X,Y,Z) directions. The diversity antenna apparatus comprises a plurality of antennae (10, 11, 12, 13) for transmitting and / or receiving a circularly polarized wave and an antenna selection circuit (20, 24, 25) which selections one of the antennae for transmission and / or reception based on information representative of reception levels of the antennae. A first group of the antennae may provide a first substantially semispherical radiation pattern and a second group of the antennae may provide a second substantially semispherical radiation pattern such that the first and second groups of antennae as a whole provide a substantially spherical radiation patter.

Description

[0001] This application is a divisional application of the invention patent application whose filing date is July 19, 2001, application number is 01125454.8, and the invention name is "diversity antenna device and method". technical field [0002] The present invention relates to a diversity antenna device, which can be used in various communication devices to transmit and / or receive signals with polarized waveforms. Background technique [0003] A communication device, such as a portable telephone or other portable device, may utilize a diversity antenna having a plurality of antennas which are selectively used to ensure a highly multipath resistant or multipath resistant feature. exist figure 1 An example of such a portable communication device is shown in , as shown in the figure, the portable communication device 100 includes two antennas 101 and 102 separated from each other by a distance equal to or greater than λ / 4, where λ can be transmitted by the antennas 101 and 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/10H01Q21/00H01Q21/29H01Q3/24H01Q21/20H04B7/06H04B7/08H04B7/26
CPCH04B7/0814H04B7/0602H04B7/10H01Q3/24
Inventor 横木清忠
Owner SONY CORP
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