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A High-Isolation Four-Port Diversity Antenna for Mobile Communications

A high-isolation, diversity antenna technology, applied to the structural form of the radiation element, can solve the problems of low antenna efficiency and narrow impedance bandwidth, and achieve the effects of flexibility, good impedance bandwidth, and low cost

Active Publication Date: 2011-12-14
GUANGDONG BROADRADIO COMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of this design are narrow impedance bandwidth and low antenna efficiency

Method used

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  • A High-Isolation Four-Port Diversity Antenna for Mobile Communications
  • A High-Isolation Four-Port Diversity Antenna for Mobile Communications
  • A High-Isolation Four-Port Diversity Antenna for Mobile Communications

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Embodiment Construction

[0042] The specific implementation of the present invention will be further described below with reference to the accompanying drawings as examples, but the implementation of the present invention is not limited to this.

[0043] Such as figure 1 , figure 2 , image 3 , A four-port diversity antenna with high isolation for mobile communication includes a dielectric substrate 1, a square ground plane completely covering one side of the dielectric substrate 2, and a rectangular ground plane covering the other side of the dielectric substrate The feed network 7, four magnetoelectric dipoles 3, four L-shaped ribbons 5, four aerial microstrip transmission lines 6 and a vertical copper wire 4; the four magnetoelectric dipoles Take the center of the square ground plane as the center, and install them on the square ground plane in a ring shape at even intervals; each magnetoelectric dipole is provided with an L-shaped ribbon and an aerial microstrip transmission line, and the L-shaped T...

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Abstract

The invention discloses a high-isolation four-port diversity antenna for mobile communication, which comprises a dielectric substrate, a grounding plane, a feed network, four electromagnetic dipoles, four L-shaped ribbons, four aerial microstrip transmission lines and a vertical copper line, wherein the four electromagnetic dipoles are annularly and evenly arranged on the square grounding place at intervals; one L-shaped ribbon and one aerial microstrip transmission line are arranged in each electromagnetic dipole, and the L-shaped ribbons are connected with the feed network through the aerial microstrip transmission lines; and one end of the vertical copper line is vertical to the center of the grounding plane. According to the invention, in the working bandwidth, the radiation efficiency of four modules all exceed 80 percent; and compared with the major traditional diversity antennas with a boardband mode, the high-isolation four-port diversity antenna can provide a wider radiation range in different polarization modes, thereby greatly improving the system property. In addition, when the high-isolation four-port diversity antenna is used for an array structure, additional angle flexibility can be formed in aspects of wave beam control and wave beam forming.

Description

technical field [0001] The invention relates to a multi-port multi-mode diversity antenna, in particular to a high-isolation four-port diversity antenna for mobile communication. Background technique [0002] The great success of the mobile communication industry has promoted the development of various wireless communication systems. In order to achieve high communication quality, complex antenna systems are necessary. In both antenna and wireless communication research fields, multi-element antennas have attracted extensive attention. In particular, diversity antennas have outstanding performance in improving system capabilities. There are different types of diversity antennas, including space diversity antennas, polarization diversity antennas, and pattern diversity antennas. In complex environments, mode diversity and polarization diversity techniques are very effective for solving multipath fading effects. Compared with traditional antennas working in a single radiati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36
Inventor 吴壁群
Owner GUANGDONG BROADRADIO COMM TECH
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