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A Broadband Dual-polarized Clover Planar Antenna

A planar antenna and four-leaf clover technology, which is applied to the combination of antenna units, antennas, and antenna components with different polarization directions, can solve the complex structure of patch antennas and dipole antennas, the performance of the pattern is not ideal, and it is not conducive to large-scale Manufacturing and other issues, to achieve the effect of stable radiation pattern, broadband and stable radiation performance, and fewer components

Active Publication Date: 2016-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both the patch antenna and the dipole antenna have the disadvantages of complex structure and not conducive to large-scale manufacturing, and most of them do not have the bandwidth to fully support 2G, 3G, LTE (4G) systems, or the performance of the pattern is not ideal

Method used

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  • A Broadband Dual-polarized Clover Planar Antenna
  • A Broadband Dual-polarized Clover Planar Antenna
  • A Broadband Dual-polarized Clover Planar Antenna

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Embodiment

[0029] Such as figure 1As shown, the broadband dual-polarized four-leaf clover planar antenna of the present invention includes a radiation unit 1 , a reflector 2 , a feeder 3 and a support structure 4 . The antenna radiating unit 1 is fixed directly above the reflector 2 through the supporting structure 4, with a distance of 36 mm.

[0030] figure 2 It is a front top view of the radiation unit of the broadband dual-polarized four-leaf clover planar antenna. The radiation unit 1 includes four radiation arms 5A-5D and microstrip lines 6A and 6B. The radiation arms 5A-5D and the microstrip lines 6A and 6B are etched in the same block On the dielectric substrate 7; the dielectric substrate 7 is made of high-frequency plate RO4350B, with a thickness of 0.76 mm and a relative permittivity of 3.48. The radiation arms 5A and 5D are etched on the upper surface of the dielectric substrate, and the radiation arms 5B and 5C are etched on the lower surface of the dielectric substrate. ...

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Abstract

A broadband dual-polarization four-leaf clover planar antenna which is applied to the 2G / 3G / LTE (4G) systems is described; the antenna includes an antenna radiating unit, a reflecting plate and two feeders. The antenna radiating unit is fixed directly above the reflecting plate via an insulated support structure, and includes a +45° polarized four-leaf clover oscillator and a -45° polarized four-leaf clover oscillator; the four-leaf clover oscillator includes a radiating arm and a microstrip line; the radiating arm being in a four-leaf clover shape is etched on a dielectric substrate, and the microstrip line being used for feeding the radiating arm is also etched on the dielectric substrate. The two feeders are respectively connected with the microstrip lines of the +45° / -45° polarized four-leaf clover oscillators.

Description

technical field [0001] The invention relates to a mobile communication base station antenna technology, in particular to a broadband dual-polarization four-leaf clover planar antenna. Background technique [0002] With the rapid development of mobile communication technology, mobile communication systems using different frequency bands have appeared one after another. At this stage, there are 2G, 3G, and LTE (4G) systems in China, of which 2G systems use the frequency band 1710-1850MHz, including GSM1800 and other systems. The 3G system uses the frequency band 1880-2170MHz, including China Telecom's cdma2000 system, China Mobile's TD-SCDMA system and China Unicom's WCDMA system, along with the 2.3GHz frequency band (2300-2400MHz) and 2.6GHz frequency band (2500-2690MHz) are divided It is the LTE (4G) frequency band, and China's wireless communication system currently covers the 1710-2690MHz frequency band. Therefore, the newly designed and installed base station antenna req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/12
CPCH01Q21/26H01Q1/246H01Q9/285H01Q19/108
Inventor 李融林崔悦慧
Owner ZTE CORP