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Antennae

An antenna and grounding plate technology, applied to antennas, resonant antennas, antenna components, etc., can solve problems such as the size of the grounding metal plate

Inactive Publication Date: 2009-01-28
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the size of the grounded metal plate is affected by the length of the radiator due to the electrostatic capacitance generated between the radiator and the grounded metal plate required for the above-mentioned two kinds of planar inverted F antennas and anti-planar inverted F antennas
Therefore, if the ground metal plate is large, it is difficult to place the antenna in a mobile communication device such as a mobile phone

Method used

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Embodiment Construction

[0020] As shown in FIG. 4 , it is a perspective view of the antenna 20 in the first preferred embodiment. The antenna 20 includes a ground metal plate 21 , a matching body 23 , a radiator 25 , a short-circuit pin 27 and a feed pin 29 . A feed hole 211 is disposed on the ground metal plate 21 . The matching body 23 is arranged parallel to the grounding metal plate 21 , and a feeding point 231 and a grounding point 233 are arranged on it. The radiator 25 is connected to the ground point 233 and extends in a direction perpendicular to the ground metal plate 21 . The short pin 27 is connected to the ground metal plate 21 and the ground point 233 . The feed pin 29 is connected to the feed point 231 after passing through the feed hole 211 . In this embodiment, the radiator 25 of the antenna 20 is helical.

[0021] Wherein, the radiator 25 , the short-circuit pin 27 and the ground metal plate 21 form a capacitive area of ​​the antenna 20 , which generates capacitance between the ...

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Abstract

The invention relates to an antenna, comprising a ground plate, a radiating body, a matching body, a short circuit pin and a feeding pin, wherein the ground plate is provided with a feeding hole, the matching body is arranged in parallel to the ground plate and is provided with a feeding point and an earth point, the short circuit pin is connected with the earth point and the ground plate, the feeding pin passes through the feeding hole and is connected with the feeding point, the radiating body is connected with the matching body, and the extending direction of the matching body is perpendicular to the ground plate. The antenna is provided with the ground plate perpendicular to the radiating body instead of being in parallel to the ground plate. Therefore, the projecting area of the radiating body on the ground plate is not affected even if the length of the radiating body is long, thereby reducing the size of the ground plate so as to bring convenience to the arrangement inside a wireless communication device.

Description

technical field [0001] The invention relates to a wireless receiving device, in particular to an antenna. Background technique [0002] Mobile wireless communication devices are widely used all over the world, such as mobile phones and PDAs used in daily life. When the regions used are different, the frequency bandwidths used by the wireless communication systems where these mobile wireless communication devices are located are also different. For example, in Japan, the frequency bandwidth used by the personal digital mobile phone system is 810~960MHZ; in Europe and the United States, the frequency bandwidth used by the mobile expert group system is 890~960MHZ, and the frequency bandwidth used by the personal communication network system is 1710MHZ ~1880MHZ, the frequency bandwidth used by the personal communication system is 1850~1990MHZ. Therefore, how to configure a matching antenna in a mobile wireless communication device according to different frequency bandwidths of...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q9/04
CPCH01Q1/362
Inventor 杨志渊郭柏伟苏硕彬柯宏昌陈文俊
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD