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Single-pole antenna

A monopole antenna and feeder technology, which is applied to antennas, resonant antennas, and slender active unit end feeds, can solve problems such as lack of impedance matching, and achieve small size, increased bandwidth, and optimal impedance matching. Effect

Inactive Publication Date: 2011-11-16
FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the low-frequency part of the antenna is a complete trapezoid, its impedance matching is lacking

Method used

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Examples

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Embodiment Construction

[0013] Please refer to Figure 2 to Figure 6 , the monopole antenna 1 of the present invention includes an insulating substrate 10 , a radiation portion 20 , a ground portion 30 and a feeder 40 . Wherein the radiation portion 20 and the ground portion 30 are made of thin metal sheets, and the radiation portion 20 is formed on the surface of the insulating substrate 10 .

[0014] The radiating portion 20 is in the shape of a vertical trapezoid, and the wider end of the radiating portion is hollowed out to form a smaller trapezoidal slot 21 . The slot 21 divides the radiating portion 20 into a first radiating arm 201 and a second radiating arm 202 . The narrower end of the radiating portion 20 has a “U”-shaped slot 22 , which makes the narrower end of the radiating portion 20 form a first rectangular arm 24 a , a second rectangular arm 24 b and a protruding portion 23 . The radiation part 20 is pasted on the insulating substrate 10 .

[0015] The ground portion 30 is rectangul...

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PUM

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Abstract

The unipole antenna includes insulated base plate, radiation part, grounding part, and feed line. Being in inverse trapezoid, the radiation part is attached to the insulated base plate. There is trapezoidal notch on winder end of the insulated base plate, and there is 'U' shaped slot on narrower end. Being as a rectangular metal plate, the grounding part includes opening in middle, and rectangular channels on two sides of the opening. Inner conductor and outer conductor are setup on feed line. Passing through the opening on the grounding part, the inner conductor is connected to the radiationpart electrically, and outer conductor is connected to sheet metal of the grounding part electrically. The disclosed antenna can increase bandwidth effectively, and possesses preferred impedance matching.

Description

【Technical field】 [0001] The invention relates to an antenna, in particular to a monopole antenna used on an electronic device. 【Background technique】 [0002] For the antenna used in digital TV, its receiving / transmitting signal and reliability are very important, and the smaller the volume of the antenna, the better. Compared with the prior art, please refer to Taiwan Patent Publication No. 239677, which discloses a broadband monopole antenna including a ground plane, a radiating metal sheet roughly located at the upper edge of the ground plane, and a feeding coaxial transmission line. The grounding plane is roughly rectangular in shape, has an upper edge and a lower edge opposite to the upper edge, and has a grounding point and a short-circuit point near the upper edge of the grounding plane. The radiation metal sheet includes a first sub-metal sheet, a second sub-metal sheet and a short-circuit metal arm. The feed coaxial transmission line includes a center conductor a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q9/30H01Q13/08
Inventor 柯云龙戴隆盛黄耀先
Owner FOXCONN (KUNSHAN) COMPUTER CONNECTOR CO LTD