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Single or double polarized moulding compound dipole antenna with integral feed structure

An antenna and dipole technology, applied in the field of dual-polarized flat-panel base station antennas, can solve problems such as low intermodulation distortion

Inactive Publication Date: 2003-12-17
RADIO FREQUENCY SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, the antenna must have good port-to-port isolation, good mode purity, good impedance, and low intermodulation distortion

Method used

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  • Single or double polarized moulding compound dipole antenna with integral feed structure
  • Single or double polarized moulding compound dipole antenna with integral feed structure
  • Single or double polarized moulding compound dipole antenna with integral feed structure

Examples

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Embodiment Construction

[0021] The present invention will be described below by means of preferred embodiments. Although the description of the embodiment is very specific, the present invention is not limited only to the embodiment, but has a much wider scope. For the true scope of the invention reference should be made to the appended claims.

[0022] The preferred embodiment will now be described with reference to the accompanying drawings 1-6. Figure 1 shows a dual polarized antenna 14 of the present invention having a 1 x 9 dipole array 16 in accordance with the present invention. The antenna 14 includes a dipole array 16 and a reflector 12 to which the dipole array 16 is attached. Of course, it is to be understood that the present invention is not limited to a particular array.

[0023] figure 2 Further details of the dipole 16 of the present invention are shown. The dipole 16 is a unitary structure comprising a base, an arm and a feed structure which will be described below. Dipoles can ...

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PUM

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Abstract

A polarized antenna for sending and receiving polarized radio frequency signals is disclosed which includes a dipole and a reflector plate. The dipole is formed as a single part including the radiating arms and feeding structures, thereby requiring minimum assembly. This dipole can be formed by molding conventional materials, such as copper, aluminum, and plastic, which can then be plated. The feeding structure through which the cable passes features a slotted aperture. The impedance of the dipole is based on the width of these apertures and the size of the cable conductor. By having a single-body construction, the dipole of the present invention provides, good impedance, low intermodulation distortion, good port-to-port isolation, and good pattern purity. <IMAGE>

Description

technical field [0001] The invention relates to a double-polarized flat-panel base station antenna for a mobile communication system. More specifically, the present invention relates to dipole structures used in dual polarized panel base station antennas. Background technique [0002] Dipole antennae are very common in the communications industry. Traditional structures, such as half-wave dipoles with "bow-tie" and "butterfly" structures, are described in many books, including Banalis, Constantine A., "Antenna Theory Analysis and Design", Wiley, 1997. [0003] In particular, antennas such as flat-panel base station antennas used in mobile communication systems strongly rely on polarized antennas. In many cases, these antennas are constructed using individual linear polarizing elements combined to create dual polarization. In this case, two separate arrays of radiating elements are required to provide the two polarizations. [0004] However, it is not desirable to manufac...

Claims

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Application Information

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IPC IPC(8): H01Q1/24H01Q9/28H01Q9/44H01Q21/00H01Q21/06H01Q21/08H01Q21/24
CPCH01Q9/44H01Q1/246H01Q21/08H01Q21/24H01Q21/062H01Q9/28H01Q21/0087H01Q21/00
Inventor 琼-皮埃尔·哈雷尔埃里克·德布隆德戴维·科莱特尼古拉斯·科让
Owner RADIO FREQUENCY SYST
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