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High-gain slot array antenna and mobile communication device

A slot array antenna, high-gain technology, applied in slot antennas, antennas, antenna coupling and other directions, can solve the problems of high-order mode out-of-band interference, affect in-band characteristics, reduce the overall performance of the antenna, etc. Plane integration, good performance effect

Pending Publication Date: 2018-12-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in the design of SIW slot array antennas, high-order modes are often used to meet the required design performance, etc. However, the use of high-order modes often brings another problem: that is, the out-of-band interference of high-order modes is particularly serious
Although the design of the antenna does not have high requirements for out-of-band indicators, sometimes the adjacent interference film and the high-order mode used are too close or even merged, which will seriously affect the in-band characteristics and reduce the overall performance of the antenna. At this time, it is necessary to Suppress or eliminate the interference film to reduce its interference to the antenna system

Method used

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  • High-gain slot array antenna and mobile communication device
  • High-gain slot array antenna and mobile communication device

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Embodiment 1

[0037] Such as figure 1 with figure 2 As shown, the present embodiment provides a high-gain slot array antenna, the slot array antenna is a substrate integrated waveguide (SIW) slot array antenna, which can be applied to mobile communication equipment, and it includes a dielectric substrate 1, a patch 2, The microstrip feeder 3 and several first through holes 4, the patch 2 and the microstrip feeder 3 are arranged on the upper surface (front) of the dielectric substrate 1, and the lower surface (back) of the dielectric substrate 1 is the floor 5, that is, the floor 5 covers The entire lower surface of the dielectric substrate 1 .

[0038] The cross-sectional shape of the dielectric substrate 1 is rectangular, its thickness is 0.8 mm, its dielectric constant is 2.55, and its dielectric loss angle is 0.0029. Since there is only one layer of dielectric substrate 1, it is easy to planar integration, simple and cheap, and has good performance.

[0039] Seen from the upper surfac...

Embodiment 2

[0051] The main feature of this embodiment is: the thickness of the dielectric substrate 1 is 0.6 mm. All the other are with embodiment 1.

Embodiment 3

[0053] The main feature of this embodiment is: the thickness of the dielectric substrate 1 is 1 mm. All the other are with embodiment 1.

[0054] In summary, the dielectric substrate of the slot array antenna of the present invention is provided with a patch, and six radiation slots are opened on the patch, and the six radiation slots form a six-slot array, which is more effective than a double-slot or four-slot array antenna. Higher gain, without having to achieve the same gain effect by forming an array of multiple antenna elements, thus simplifying the array structure, and because of the use of a layer of dielectric substrate, it is easy to planar integration, simple and cheap process, and good performance; in addition, this The invented slot array antenna divides the six radiation slots into two rows, and the two rows have three radiation slots. The radiation slots on both sides of each row of radiation slots are loaded with a total of eight through holes, which can suppre...

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Abstract

The invention discloses a high-gain slot array antenna and a mobile communication device, the high gain slot array antenna comprises a dielectric substrate, a patch, a microstrip feeder, a plurality of first through holes, eight second through holes and two third through holes, the patch and the microstrip feeder are arranged on the upper surface of the dielectric substrate, 6 radiation gaps are arranged on the patch, the microstrip feeder is connected with the patch, the plurality of first through holes, the eight second through holes and the two third through holes pass through the patch andthe dielectric substrate, the plurality of first through holes are uniformly distributed along the inner sides of each edge of the patch to form a rectangular structure, and the eight second throughholes and the two third through holes are located inside the rectangular structure formed by the first through holes; the mobile communication device includes the high gain slot array antenna described above. The antenna of the invention has the characteristics of simple structure, low section structure and high gain, and can suppress interference film.

Description

technical field [0001] The invention relates to a slot array antenna, in particular to a high-gain slot array antenna and mobile communication equipment, belonging to the technical field of mobile communication antennas. Background technique [0002] Substrate Integrated Waveguide (SIW) is a new microwave transmission line. Because it inherits the characteristics of low loss and high power capacity of metal waveguide, it does not have the disadvantages of bulky structure and difficult processing of metal waveguide; it has the advantages of easy planar integration of microstrip line, and does not contain the disadvantage of large high-frequency radiation of microstrip line ; Easy processing and low price, so it is widely used in microwave and millimeter wave circuits. [0003] Antenna is an extremely important link in a radio frequency system. Gain is a key indicator that affects its performance. How to increase antenna gain with limited antenna volume and complexity is an u...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/52H01Q13/10H01Q21/00H01Q21/06
CPCH01Q1/38H01Q1/50H01Q1/52H01Q13/10H01Q21/0075H01Q21/065
Inventor 孔永丹邹云涌
Owner SOUTH CHINA UNIV OF TECH
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