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Low-profile broadband antenna

A wide-band antenna and low-profile technology, applied in antennas, resonant antennas, antenna grounding devices, etc., can solve the problems of high profile, increased complexity and cost, difficult circuit integration, etc., to achieve reduced profile, good performance, and facilitate integrated applications Effect

Active Publication Date: 2021-10-22
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Almost all existing solutions face the shortcomings of high profile and difficulty in integrating with circuits. Among them, the mesh and grid solutions with better performance need to use transfer substrates and optical transparent glue in the manufacturing process, which greatly increases the complexity and cost of manufacturing.

Method used

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  • Low-profile broadband antenna
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  • Low-profile broadband antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] see Figure 1 to Figure 4 , a low-profile broadband antenna, comprising a substrate 2 and an antenna 1 layer stacked in sequence, the antenna layer comprising a first dipole arm, a second dipole arm, a first floor 18, a second floor 19, and The first metal strip 11 for forming a planar waveguide and the rectangular split ring 10 for gathering the dipole mode and the ground mode; the first metal strip 11 is located between the first floor 18 and the second Between the floors 19; one end of the first metal strip 11 is connected to the signal source, and the other end is connected to the first dipole arm; the second dipole arm is connected to the second floor 19; the The first dipole arm and the second dipole arm are adjacent; the first dipole arm and the second dipole arm are located between the split ring 10 and the first metal strip between the bands 11; the first dipole arm and the second dipole arm are coupled to the split ring 10; the split ring 10 is provided with ...

Embodiment 2

[0039] On the basis of the above structure, the antenna layer 1 also includes a first back reflector 16 and a second back reflector 17; the first back reflector 16 is connected to the first floor 18, and the second back reflector The device 17 is connected to the second floor 19. Two grounded back reflectors are used to reduce back radiation and improve the front-to-back ratio of radiation.

Embodiment 3

[0041] On the basis of the above structure, the first floor 18 and the second floor 19 are rectangular, the first metal strip 11 is a rectangular metal strip, and the second floor 19 and the first metal strip The gap between the bands 11 is the second gap 22; the line between the first back reflector 16 and the second back reflector 17 is mirror-symmetrical to the line where the second gap 22 is located, and the first even The pole arm and the second dipole arm are mirror-symmetrical to the straight line where the second gap is located; both the second back reflector and the second dipole arm are located on the second floor The same side of the same side; the first dipole arm and the second dipole arm are located between the first back reflector and the second back reflector; the straight line where the second slit is The axis of symmetry of the split ring. On the basis of this structure, the performance of the antenna is further optimized. The straight line where the second...

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Abstract

The invention provides a low-profile broadband antenna, which comprises a substrate and an antenna layer which are stacked in sequence. The antenna layer comprises a first dipole arm, a second dipole arm, a first floor, a second floor, a first metal strip for forming a planar waveguide and a rectangular split ring for gathering a dipole mode and a ground mode. The first metal strip is located between the first floor and the second floor. One end of the first metal strip is connected with a signal source, and the other end is connected with the first dipole arm. The second dipole arm is connected with the second floor. The first dipole arm is adjacent to the second dipole arm. The first dipole arm and the second dipole arm are both located between the split ring and the first metal strip. The first dipole arm and the second dipole arm are coupled to the split ring. The split ring is provided with a gap, and the gap is located on the side edge, close to the first dipole arm and the second dipole arm, of the split ring. The obtained antenna is low in profile and can work in a 2.4 GHz wave band and a 3-6 GHz frequency range.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a low-profile broadband antenna. Background technique [0002] In recent years, the commercialization of 5G mobile communications is in full swing. With the gradual popularization of 5G and the development of the Internet of Things, emerging fields such as the Internet of Vehicles have higher requirements for antennas, which also brings new challenges. Traditional opaque antennas can no longer fully meet people's needs. Optically transparent antennas, due to their complete transparency or extremely high transparency in the visible light frequency band and some other frequency bands, and softer visual impact, they can be integrated almost invisible on vehicle windshields, display panels and other objects without affecting line of sight. In the environment of 5G development, especially in the field of radio frequency, it has become more and more popular. Optically transparent a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q1/48H01Q9/16H01Q19/10
CPCH01Q1/38H01Q1/50H01Q1/48H01Q9/16H01Q19/10
Inventor 孙宇祥吴迪
Owner SHENZHEN UNIV