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Super thin double polarized micro strip antenna

A microstrip antenna, dual-polarization technology, applied in antennas, slot antennas, circuits, etc., to achieve the effects of improving standing wave characteristics, shortening antenna size, and improving cross-polarization ratio

Active Publication Date: 2008-08-13
COMBA TELECOM TECH (GUANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Practice has proved that the above scheme does not solve the problems of the microstrip antenna very well, that is to say: the existing slotted microstrip antenna cannot solve the problem of pattern index, standing wave index, cross pole The contradiction between the quantitative index and the front-to-back ratio index

Method used

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  • Super thin double polarized micro strip antenna

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Embodiment Construction

[0024] see figure 1 and figure 2 , the ultra-thin dual-polarized microstrip antenna of the present invention comprises a radiating element 2, a metal base plate 4 and a pair of feeding parts in an approximate square side length of 1 / 4 wavelength, and the two feeding parts are installed on an insulating substrate 32 The insulating substrate 32 is fixed on the metal bottom plate 4, and each feed part includes a feed sheet 31 and an impedance conversion circuit with one end electrically connected to the feed sheet 31. The radiating unit 2 is arranged on a thick On a single-sided microwave substrate 1 with a diameter of 1mm, the four corners of the single-sided microwave substrate 1 are supported by four support members 5 connected to the metal bottom plate 4, and the distance between the radiation unit 2 and the metal bottom plate 4 is not the same. More than 0.1 center frequency wavelength. In addition, the radiation unit 2 is provided with four V-shaped grooves 21 , and each...

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Abstract

Present invention relates to a ultrathin dual polarization microstrip antenna. It contains radiating element, metal base plate and a pair of power feed parts, wherein two power feed parts fixed on metal base plate, each power feed part including power feed piece and connected impedance inverter circuit, said radiating element supported above two power feed parts, said radiating element having at least two V-groove, each V-groove axial symmetry distributed along radiating element center point, each V-groove angular point nearing to radiating element center point. Said V-groove prolongs current path, reducing resonant frequency, and shortening aerial size, and V-groove having restrictive effect to radiating element surface current to make most of flow along area between adjacent two V-grooves, thereby rising cross polarization ratio.

Description

【Technical field】 [0001] The invention relates to an ultra-thin dual-polarized microstrip antenna for mobile communication. 【technical background】 [0002] Microstrip antennas have attracted widespread attention due to their advantages of light weight, small size, low profile and low manufacturing cost, but they also have shortcomings such as narrow bandwidth and poor cross-polarization. With the rapid development of integrated circuits, the volume of microstrip antennas is required to be smaller and smaller, and the performance is getting better and better, but the reduction of volume usually causes the deterioration of pattern characteristics (such as front-to-back ratio, cross-polarization, etc.) and the antenna The further narrowing of the bandwidth and other issues, and the height is reduced to the limit value of the traditional microstrip antenna, the index deteriorates very seriously. In order to solve this technical obstacle, the thin broadband microstrip antenna has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/08H01Q13/10
Inventor 卜斌龙薛锋章王文进陈本栋
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD
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