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Radio-communication terminal antenna

A radio communication and terminal technology, applied to antennas, antenna parts, antenna supports/mounting devices, etc., can solve problems such as reduced efficiency and damage to printed circuit boards 70

Inactive Publication Date: 2007-02-14
IPG ELECTRONICS 503
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Confining the antenna to a small space causes the electrical energy generated by the antenna to be converted into heat which propagates in the terminal and causes damage in particular to the printed circuit board 70
[0019] In addition, because the antenna is limited, its efficiency is reduced, which can be reduced to below 40%, and its passband is less than 6.5% of the GSM900 frequency band

Method used

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Embodiment Construction

[0032] In the following description, the application of the invention to radio communication terminals including all forms of radio transceivers, such as mobile telephones, radio calling devices or personal digital assistants (PDAs), is illustrated.

[0033] The radio communication terminal according to the invention may be of the GSM850, GSM900, DCS (Digital Communication System), UMTS (Universal Mobile Telecommunications System) type or may be a DECT (Digital European Cordless Telecommunications) type telephone. This terminal can also integrate GPS (Global Positioning System) or Wi-Fi (Wireless Fidelity) functions.

[0034] The terminal of FIG. 2 is made of a housing with two side walls parallel to the axis X-X': a first wall 21 and a second wall 22 . In addition, there are two walls perpendicular to the axis X-X', which define the front shell 30 and the rear shell 20 of the terminal.

[0035] Under the rear case 20, the antenna 10 and the energy storage device 40 adjacent ...

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Abstract

The invention relates to a radiocommunication terminal consisting of a housing comprises two shells, namely: a rear shell(20) and a front shell(30). The rear shell(20) covers an antenna space that is dedicated to a patch antenna(10) and a storage space that is dedicated to an energy-storing device(40), said antenna space being adjacent to the storage space. According to the invention, the terminal comprises a vacant space around the energy-storing device(40) between the printed circuit board(70) and the rear shell(20) and the space occupied by the antenna patch(10) extends over at least part of said vacant space.

Description

technical field [0001] The present invention relates to antennas for radio communication terminals. The not only field of application of the invention is mobile radio communication terminals operating in radio communication systems. In particular the invention may, but not exclusively, be used in systems or networks according to the GSM850, GSM900, DCS, PCS and UMTS standards. Background technique [0002] Antennas used in radio communication terminals are antennas that transmit signals within the frequency bands determined by this standard. [0003] It is known how to use microstrips on a plane as antennas for communication terminals. These antennas are also called patch antennas and are located inside the housing of the terminal. They mainly consist of a dielectric substrate on the surface of which the plane of the microstrip is formed. [0004] Various patch antennas of this type are known in the state of the art. [0005] in e.g. Figure 1A with 1B In the generally...

Claims

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Application Information

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IPC IPC(8): H01Q1/24
CPCH01Q1/243
Inventor 吉勒斯·杜兰德莉迪·罗伯特
Owner IPG ELECTRONICS 503
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