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Directional Antenna

A technology of directional antennas and radiators, applied in the field of antennas, can solve the problems of increasing the time spent on antennas and difficulty in changing the radiation pattern, and achieve the effects of reducing time and production costs, simple design, and miniaturized design

Active Publication Date: 2017-06-06
ASUSTEK COMPUTER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The antennas used in the prior art are mostly planar inverted F antennas (PIFA Antenna) and monopole antennas (Monopole Antenna). The radiation characteristics of these two antenna types are non-directional, and it is difficult to change their radiation pattern.
In order to meet the requirements of directional characteristics, it is often necessary to repeatedly adjust the structure of the antenna, thereby increasing the time spent on antenna design

Method used

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Examples

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Embodiment Construction

[0015] figure 1 It is a schematic structural diagram of a directional antenna according to an embodiment of the present invention. refer to figure 1 , the directional antenna 100 includes a ground plane 110 , a feeding element 120 and a radiating element 130 . The feeding element 120 is adjacent to the ground plane 110 and has a feeding point P11. The radiation element 130 is separated from the feeding element 120 by a coupling distance 101 . In operation, the feed-in component 120 receives a feed-in signal through the feed-in point P11. In addition, the fed signal will be coupled to the radiation element 130 through the coupling gap 101 , and thereby excite the radiation element 130 . In this way, the directional antenna 100 can generate a resonant mode to operate at a resonant frequency.

[0016] It should be noted that the radiation element 130 has a coupling point P12. Wherein, the coupling point P12 of the radiating element 130 is relative to the feeding point P11 o...

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Abstract

This case discloses a directional antenna, including a ground plane, a feed element and a radiating element. The feed-in component is adjacent to the ground plane and has a feed-in point. The radiation element and the feed element are separated by a coupling distance and have a coupling point. Wherein, the coupling point of the radiating element and the feeding point of the feeding element are both located on a vertical line perpendicular to the ground plane. In addition, the distance from the coupling point to an open end of the radiating element is less than 0.16 times the wavelength of the resonant frequency of the directional antenna.

Description

technical field [0001] This case relates to an antenna, and in particular to a directional antenna. Background technique [0002] This case discloses that the antenna is an important electronic component in a communication device or a handheld device. With the trend of light, thin, short and small design of communication devices or handheld devices, the configuration space of antennas is often constantly compressed. Therefore, how to design an antenna that meets the actual communication requirements in the limited space of the communication device or the handheld device is an important issue to be solved at present. [0003] The antennas used in the prior art are mostly planar inverted F antennas (PIFA Antenna) and monopole antennas (Monopole Antenna). The radiation characteristics of these two antenna types are non-directional, and it is difficult to change the radiation pattern. In order to meet the requirements of the directional characteristics, it is often necessary t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/50
Inventor 林庭毅谢宗勋邱纪宪张佑嘉
Owner ASUSTEK COMPUTER INC