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Broadband common-aperture dipole array of Sub-6GHz and millimeter wave frequency bands

A millimeter-wave frequency band, sub-6ghz technology, applied to devices, antenna arrays, slot antennas, etc. that enable antennas to work in different bands at the same time, can solve problems such as cross polarization and narrow bandwidth, achieve good isolation and improve impedance The effect of wide bandwidth and compact antenna structure

Pending Publication Date: 2022-03-08
HANGZHOU DIANZI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the SICL structure and multi-layer distribution technology, cross-polarization can be effectively suppressed. The dipole antennas in both frequency bands use bent long-arm dipoles with slots, and a wide-band with cross-polarization suppression function is proposed. Low sidelobe antenna array, which can solve the defects of cross polarization and narrow bandwidth in the existing dipole feeding technology

Method used

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  • Broadband common-aperture dipole array of Sub-6GHz and millimeter wave frequency bands
  • Broadband common-aperture dipole array of Sub-6GHz and millimeter wave frequency bands
  • Broadband common-aperture dipole array of Sub-6GHz and millimeter wave frequency bands

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Embodiment Construction

[0063] The present invention is further analyzed below in conjunction with specific examples.

[0064] like figure 1 As shown, the broadband co-aperture dipole array working in the Sub-6GHz / millimeter wave frequency band is a multi-layer vertical arrangement structure, which includes the low-frequency antenna H-surface reflector 2, the first metal surface M1, the first Dielectric substrate S1, third dielectric substrate S3, second metal surface M2, second dielectric substrate S2, third metal surface M3; the first dielectric substrate S1 and the second dielectric substrate S2 are both Taconic TLY-5, the dielectric constant is 2.2, the loss tangent is 0.0009, and the thickness is 0.254mm. The third dielectric substrate S3 is Rogers 4450F, the dielectric constant is 3.52, the loss tangent is 0.004, and the thickness is 0.1mm.

[0065] like figure 2 , 3 , 4, and 5, the Sub-6GHz low-frequency antenna includes a low-frequency antenna reflector, a low-frequency dipole 7, double-s...

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Abstract

The invention discloses a broadband common-aperture dipole array of Sub-6GHz and millimeter wave frequency bands. The broadband common-aperture dipole array comprises a millimeter wave dipole antenna, a Sub-6GHz low-frequency antenna and a multilayer dielectric substrate, the Sub-6GHz low-frequency antenna comprises a low-frequency antenna H-surface reflecting plate, a low-frequency antenna E-surface reflecting plate, a low-frequency dipole, a double-sided parallel microstrip line, a GCPW-to-DPSPL structure and a low-frequency grounding stub; the millimeter wave dipole antenna comprises a high-frequency dipole antenna array, a high-frequency grounding branch, a high-frequency feed network and a high-frequency reflecting plate. The SICL structure and the multi-layer distribution technology are adopted, cross polarization is effectively restrained, the isolation degree between ports is improved, and the impedance bandwidth is improved by etching gaps in the dipole arms of the two frequency bands. According to the invention, the end-fire Sub-6GHz / millimeter wave common-aperture antenna is realized, and the whole antenna can be realized through the processing of a PCB (Printed Circuit Board) technology, and is easy to integrate with an active circuit system.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a broadband common-aperture dipole array working in the Sub-6GHz / millimeter wave frequency band. Background technique [0002] With the development of 5G communication systems, co-aperture antennas have attracted much attention due to their high aperture utilization, and the application and collaboration of Sub-6GHz and millimeter wave technologies have become key features of future networks. At present, the frequency spectrum allocated to 5G communication can be divided into sub-6GHz (3GPP FR1: 450MHz-6GHz) and millimeter wave frequency band (3GPP FR2: 24.25-52.6GHz). For communication systems that have limited available space and work in the Sub-6GHz and millimeter wave frequency bands at the same time, antenna design is a very big challenge. [0003] The dual / multi-frequency antenna with large frequency ratio is considered to be a feasible way to solve this probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q13/10H01Q1/50H01Q1/52H01Q5/20H01Q15/14H01Q1/48H01Q21/00
CPCH01Q13/106H01Q1/50H01Q1/52H01Q5/20H01Q15/14H01Q1/48H01Q21/00
Inventor 范奎奎范潇飞谭青权罗国清
Owner HANGZHOU DIANZI UNIV
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