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Feed antenna applied to 94 GHz passive millimeter wave imaging system

A millimeter-wave imaging, passive technology, applied in the field of feed antennas, can solve the problems of reduced spatial resolution and too large aperture of imaging systems, and achieve the effects of good radiation performance, moderate gain, and easy processing.

Active Publication Date: 2014-04-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the feed antenna used in the traditional 94GHz millimeter-wave imaging system is a horn antenna, and its mouth surface is too large to reduce the spatial resolution of the imaging system, the invention further proposes a feeder antenna applied to a 94GHz passive millimeter-wave imaging system source antenna

Method used

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  • Feed antenna applied to 94 GHz passive millimeter wave imaging system
  • Feed antenna applied to 94 GHz passive millimeter wave imaging system
  • Feed antenna applied to 94 GHz passive millimeter wave imaging system

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment. A feed antenna for a 94GHz passive millimeter-wave imaging system described in this embodiment includes a front metal floor 1, a back metal floor 2, and a dielectric board 3. The dielectric board 3 is a rectangular board, and the front metal floor 1 is printed on the upper part of the front of the dielectric board 3, and the back metal floor 2 is printed on the lower part of the back of the dielectric board 3. The upper part of one end of the dielectric board 3 is provided with a first sawtooth structure 3-1, and the front metal floor 1 and the first sawtooth structure 3-1 1, the lower part of one end of the dielectric board 3 is provided with a second sawtooth structure 3-2, and the back metal floor 2 is connected to the second sawtooth structure 3-2.

[0008] The model of the dielectric board 3 in this embodiment is Rogers RT5870.

[0009] From Figure 3 to Figure 5 It can be...

specific Embodiment approach 2

[0010] Specific implementation mode two: combination figure 1 and figure 2 Describe this embodiment. The front metal floor 1 of a feed antenna applied to a 94GHz passive millimeter-wave imaging system described in this embodiment is composed of the first vertical side 1-1 of the front metal floor and the first horizontal side of the front metal floor. and The second horizontal side 1-7 of the front metal floor is connected end-to-end to form a closed polygon, and the first vertical side 1-1 of the front metal floor coincides with the vertical side of the other end of the dielectric board 3, and the second horizontal side 1 of the front metal floor -4 coincides with the top edge of the medium plate 3, and the first sawtooth edge 1-5 of the front metal plate coincides with the first sawtooth structure 3-1.

[0011] The technical effect of this embodiment is: set in this way, the first arc edge 1-3 of the front metal floor and the second arc edge 1-6 of the front metal floor f...

specific Embodiment approach 3

[0012] Specific implementation mode three: combination figure 1 and figure 2 Describe this embodiment. The back metal floor 2 of a feed antenna applied to a 94GHz passive millimeter-wave imaging system described in this embodiment is composed of the first vertical side 2-1 of the back metal floor and the first horizontal side of the back metal floor. 2-2, the first arc side of the back metal floor 2-3, the second arc side of the back metal floor 2-4, the first zigzag side of the back metal floor 2-5, the second horizontal side of the back metal floor 2-6, A closed polygon formed by connecting the third arc edge 2-7 of the back metal floor, the fourth arc edge 2-8 of the back metal floor, and the third horizontal edge 2-9 of the back metal floor sequentially from end to end, and the back metal floor is first vertical Side 2-1 coincides with the vertical side of the other end of the medium board 3, the first sawtooth side 2-5 of the back metal floor coincides with the second s...

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Abstract

The invention discloses a feed antenna applied to a 94 GHz passive millimeter wave imaging system, and relates to a feed antenna, in particular to a feed antenna applied to a 94 GHz passive millimeter wave imaging system. The invention aims to solve the problem that the spatial resolution of the imaging system is lowered due to the fact that the traditional feed antenna applied to the 94 GHz millimeter wave imaging system is a horn antenna and the aperture is too large. The feed antenna comprises a front metal floor, a back metal floor and a medium plate, wherein the medium plate is a rectangular plate body, the front metal floor is printed on the upper part of the front face of the medium plate, the back metal floor is printed on the lower part of the back face of the medium plate, the upper part of one end of the medium plate is provided with a first sawtooth structure which is contacted with the front metal floor, and the lower part of one end of the medium plate is provided with a second sawtooth structure which is contacted with the back metal floor. The feed antenna is applied to the field of radio communication.

Description

technical field [0001] The invention relates to a feed antenna, in particular to a feed antenna applied to a 94GHz passive millimeter-wave imaging system, and belongs to the field of radio communication. Background technique [0002] With the development of communication technology, the development of frequency is getting higher and higher, and millimeter wave has received more and more attention. Traditionally, we refer to a section of the electromagnetic spectrum with a wavelength between 1mm and 10mm as the millimeter wave spectrum, which corresponds to a frequency range of 300GHz to 30GHz. Millimeter wave is characterized by high frequency and short wavelength. Compared with laser, infrared and other electronic optical technologies, millimeter wave has stronger penetrating ability in smoke, fog, dust and other harmful environments. It is precisely because of its remarkable features, coupled with the needs of security inspections in various countries, that millimeter wav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
Inventor 付彦志亚历山大·杰尼索夫王楠楠宗华特尼格尔王善林白竞祎
Owner HARBIN INST OF TECH
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