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Broadband dual-polarized printed dipole antenna capable of integrating balun feeds

A dipole antenna and dual-polarization technology, which is applied in the field of broadband dual-polarization printed dipole antennas, can solve the problems of large cross-section on the antenna unit, unfavorable windproof design, etc., achieve wide bandwidth and overcome the problems of printed dipoles The effect of narrow bandwidth and multi-antenna multiplexing

Inactive Publication Date: 2014-01-01
HUAQIAO UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the section on the antenna unit is relatively large, which is not conducive to the windproof design

Method used

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  • Broadband dual-polarized printed dipole antenna capable of integrating balun feeds
  • Broadband dual-polarized printed dipole antenna capable of integrating balun feeds
  • Broadband dual-polarized printed dipole antenna capable of integrating balun feeds

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[0044] In order to adjust the bandwidth, the two stripline integrated balun double-layer printed dipole antenna elements are in addition to Figure 4 T-shaped short-circuit vibrator structure and Figure 5 In addition to the different structural size parameters of the stripline fed balun 3, other structural parameters are the same.

[0045] Combine Figure 4 to Figure 7 The structure definition of this design has the same parameters of the two double-layer printed dipole antenna units: the dielectric plate 1 uses the FR4 dielectric plate with a dielectric constant of 4.4 and a thickness of 1.5mm, and the length of the dielectric plate above the metal reflector 4 is 88mm, The width is 56mm, inserted into the dielectric plate H below the metal reflector 4 6 =12mm, L 6 =60mm. Radiation patch unit 2 bottom width D=30mm, radiation arm width H 2 =21mm, the length of the radiating arms is L 1 =68mm, the width is L in the middle of the radiation patch unit 2 4 =4.4mm, length is H 3 =35mm...

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Abstract

The invention discloses a broadband dual-polarized printed dipole antenna capable of integrating balun feeds. The broadband dual-polarized printed dipole antenna comprises a metal baffle board and two pairs of dual-layer printed dipole antenna units. Each pair of dual-layer printed dipole antenna units comprises an SMA connector and two medium plates. T-type short circuit oscillator structures are added to the top ends of two arms of a radiation patch unit respectively, and therefore the broadband can be widened. The antenna is composed of two dual-layer patch structures in a cross mode, a trapezoid bent structure is adopted for the bottom of a feed balun, therefore, the isolation degree of a twin port is improved, and the antenna is convenient to assemble. The measured result shows that the bandwidth of two ports, with the VSWR< / =2, of the antenna reaches 66.7%, namely, the bandwidth ranges from 1.65GHz to 3.3 GHz, the isolation degree in the broadband is larger than 25dB, and the gain in the broadband ranges from 4.1dBi to 8.3dBi. The broadband dual-polarized printed dipole antenna has the advantages of being wide in frequency bandwidth, small in size, low in profile, simple in structure and light in weight, meets the current design requirements for the miniaturization and the broadband, and can be applied to 2G / 3G / 4G(LTE) communication standard networks such as WCDMA and TD-CDMA.

Description

Technical field [0001] The present invention relates to the technical field of antenna engineering, in particular to a broadband dual-polarized printed dipole antenna with integrated balun feed, which has the advantages of frequency bandwidth, dual polarization, and high isolation, and is suitable for 2G / 3G / LTE Wireless communication fields such as mobile communication base station equipment. Background technique [0002] With the rapid development of radio communication technology, such as 2G GSM1800 and GSM1900, 3G (CDAM-2000, WCDMA and TD-SCDMA) and LTE these communication systems are mainly 1.7-2.8GHz. Dual-polarized antennas are widely used in mobile communications. Using dual-polarized antennas to achieve polarization diversity technology can resist multipath fading, reduce call loss, reduce interference, and increase communication capacity. In order to adapt to the development trend of multi-network convergence and the subsequent evolution of communication networks, anten...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q13/08H01Q21/24H01Q19/10H01Q1/36H01Q1/52H01Q15/14
Inventor 葛悦禾王灿
Owner HUAQIAO UNIVERSITY
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