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Metamaterial dual-polarization radio-frequency base station antenna

A base station antenna and dual-polarization technology, applied in the field of dual-polarized radio frequency antennas, can solve the problems of versatility and performance differences

Active Publication Date: 2012-09-19
KUANG CHI INST OF ADVANCED TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, the original technology will encounter problems of versatility and performance differences in use

Method used

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  • Metamaterial dual-polarization radio-frequency base station antenna
  • Metamaterial dual-polarization radio-frequency base station antenna
  • Metamaterial dual-polarization radio-frequency base station antenna

Examples

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Embodiment 1

[0031] Such as image 3 As shown, in this embodiment, spaces 31 and 32 for embedding inductive electronic components and / or resistors are preset on the first feeder 11 and the second feeder 12 respectively, and the preset positions for embedding electronic components in the space can be Any position on the first feeder line 11 and the second feeder line 12, and there may be more than one. Inductive electronic components can be embedded in the space 31 and the space 32 to change the inductance value on the first feeder 11 and the second feeder 12 . Using the formula: f=1 / (2π√LC), it can be seen that the inductance value is inversely proportional to the square of the operating frequency, so when the required operating frequency is a lower operating frequency, it can be realized by embedding appropriate inductance or inductive electronic components. In this embodiment, the inductance value of the added inductive electronic element ranges from 0 to 5uH. If the alternating signal ...

Embodiment 2

[0033] Such as Figure 4 As shown, in this embodiment, a space 41 and a space 42 for embedding capacitive electronic components are preset between the first feeder 11 and the metal microstructure 100, and between the second feeder 12 and the metal microstructure 100. The position embedded in the electronic component space can be any position between the first feeder 11 and the metal microstructure 100 , and between the second feeder 12 and the metal microstructure 100 . Figure 4 The middle space 41 and the space 42 are spaces for embedding capacitive electronic components in this embodiment. There is a certain capacitance between the first feeder 11, the second feeder 12 and the metal sheet 4. Here, the first feeder 11 is adjusted by embedding the capacitive electronic components. For the signal coupling between the feeder 11, the second feeder 12 and the metal sheet 4, use the formula: f=1 / (2π√LC), it can be seen that the capacitance value is inversely proportional to the sq...

Embodiment 3

[0035] Such as Figure 5 As shown, in this embodiment, a space for embedding inductive electronic components and / or resistors is reserved on the wiring of the metal microstructure 100, and the space for embedding electronic components is not limited to the space 51 and the space shown in the figure. 52. Other positions are acceptable as long as the conditions are met. The purpose of embedding inductive electronic components here is to increase the inductance value of the internal resonant structure of the metal microstructure, thereby adjusting the resonant frequency and operating bandwidth of the antenna; same as the first embodiment, the purpose of embedding resistors here is to improve the antenna radiation resistance. As for embedding inductive electronic components or resistors, it depends on the needs. In addition, wires are used to short-circuit in the space where electronic components are not embedded.

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Abstract

The invention relates to a metamaterial dual-polarization radio-frequency base station antenna. By reserving a space for embedding an electronic component on one of five positions, namely a first feeder line, a second feeder line, a position between the first feeder line and a metal microstructure, a position between the second feeder line and the metal microstructure, and the metal microstructure, the antenna performance can be fine-tuned by changing the performance of the embedded electronic component so as to design the antenna meeting the requirements on adaptability and universality.

Description

technical field [0001] The invention relates to a dual-polarized radio frequency antenna, and more specifically, to a metamaterial dual-polarized radio frequency base station antenna. Background technique [0002] The dual-polarized antenna is a new type of antenna technology. The traditional dual-polarized antenna combines +45° and -45° two antennas with orthogonal polarization directions and works in the duplex mode of transmission and reception at the same time, so its The most prominent advantage is to save the number of antennas of a single directional base station; the directional base station (three sectors) of the general GSM digital mobile communication network will use 9 antennas, and each sector will use 3 antennas (space diversity, one transmission and two receptions), If a dual-polarized antenna is used, only one antenna is required for each sector; at the same time, due to the dual-polarized antenna, the polarization orthogonality of ±45° can ensure the isolati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q23/00H01Q1/24H01Q1/36
Inventor 刘若鹏杨松涛张洋洋李岳峰
Owner KUANG CHI INST OF ADVANCED TECH
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