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Dual-mode arc dipole array antenna applied to indoor base station

An indoor base station and array antenna technology, applied in the field of antennas, can solve the problems of large size of base station antenna, restricted application range, single mode, etc., and achieve the effects of high gain, low cost and small size

Pending Publication Date: 2019-03-08
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional base station antennas are large in size, narrow in bandwidth, and have a single mode, which is limited by their feeding methods and volume, and their application range is restricted

Method used

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  • Dual-mode arc dipole array antenna applied to indoor base station
  • Dual-mode arc dipole array antenna applied to indoor base station
  • Dual-mode arc dipole array antenna applied to indoor base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 is a four-element array antenna, please refer to figure 1 , figure 2 , image 3 , Figure 4 . In this embodiment, the radius R1 of the dielectric substrate 1 is 40mm, the height t is 1.6mm, the radius R2 of the printed arc-shaped dipole unit is 37mm, and the width is 2mm, and the outer radius R3 of the middle ring reflector is 17mm, and the width is 2mm, such as figure 1 shown.

[0025] In the above antenna design process, all the scattering parameters were optimized and designed by the electromagnetic simulation software HFSS15.0.

[0026] The above-mentioned antenna radiating unit is made by pasting copper skin on the FR-4 substrate 1. After the actual antenna is manufactured, the reflection coefficient of the antenna is measured by the N9918A vector network analyzer, and compared with the reflection coefficient obtained by simulation, four The cell array reflection coefficient, such as figure 2 shown.

[0027] When measuring the antenna pattern,...

Embodiment 2

[0038] Embodiment 2 is an eight-element array antenna, please refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 . In this embodiment, two dielectric substrates 1 are included, and each dielectric substrate 1 is provided with four units of printed arc-shaped dipoles 2 and an intermediate ring reflector 3, but the two dielectric substrates 1 are relatively rotated by 45°, and then Connected by foam 4, the foam is 50mm long, 50mm wide, and 50mm high, such as Figure 5 shown.

[0039] In the above antenna design process, all the scattering parameters were optimized and designed by the electromagnetic simulation software HFSS15.0.

[0040]The above-mentioned antenna radiating unit is manufactured by pasting copper skin on the FR-4 dielectric substrate 1. After the actual antenna is manufactured, the reflection coefficient of the antenna is measured by the N9918A vector network analyzer, and compared with the reflection coefficient obtained by simulation, it is obtained E...

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PUM

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Abstract

The invention discloses a dual-mode arc dipole array antenna applied to an indoor base station, comprising a dielectric substrate, wherein the dielectric substrate is circular and provided with printed arc dipoles and an intermediate ring reflector, the printed arc dipoles are array units arranged in a ring shape in the four directions of 0 degrees, 90 degrees, 180 degrees, and 270 degrees along the edge of the dielectric substrate, the printed arc dipoles are equal in length and are all driving vibrators, and the intermediate ring reflector is disposed at an intermediate position on the dielectric substrate. The antenna utilizes the pattern characteristics of the dipole, uses the printed dipole as the array elements, and arranges the dipoles on the dielectric substrate. Since the equivalent wavelength on the substrate is smaller than the wavelength in the air, which effectively reduces the size of the array antenna and is easy to process. The antenna has the advantages of small size,high gain, low cost, horizontal beam scanning and directional omnidirectional mode switching, and can be used in indoor base station equipment.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-mode arc dipole array antenna applied indoors. Background technique [0002] Traditional base station antennas are large in size, narrow in bandwidth, and have a single mode, which is limited by their feeding methods and volume, and their application range is restricted. [0003] With the rapid development of mobile communications and the rapid growth of mobile users, smart antennas have been widely considered as a key technology to improve communication quality and spectrum utilization. Smart antenna arrays can generate spatially directional beams and can adaptively steer radio signals in the direction of users, while sidelobes and nulls point to other possible interfering signals. Mobile communication systems often require smart antennas to switch between omnidirectional and directional modes for different user states. When the base station cannot determine the user's...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/29H01Q21/20H01Q19/10H01Q9/28H01Q1/38H01Q1/50H01Q1/24H01Q1/00
CPCH01Q1/007H01Q1/246H01Q1/38H01Q1/50H01Q9/285H01Q19/108H01Q21/205H01Q21/293
Inventor 文舸一苗祥斌
Owner NANJING UNIV OF INFORMATION SCI & TECH