SIGW-based 5G millimeter wave antenna
A millimeter-wave antenna, integrated technology, applied in the direction of antenna, resonant antenna, electrical short antenna, etc., can solve the problems of complex structure, insufficient bandwidth and high cost
Inactive Publication Date: 2021-06-08
NANYANG NORMAL UNIV
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Problems solved by technology
However, in the current application of 5G millimeter-wave antennas, there are still relatively few antennas implemented with substrate-integrated gap waveguide structures, and the existing 5G millimeter-wave antennas based on SIGW are not only complex in structure, high in cost, high in profile, and relatively wide in bandwidth. Less than 42%, the bandwidth is not large enough to meet the ultra-broadband requirements of the 5G communication system
Method used
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[0024] Example: such as Figure 1 to Figure 7 As shown, a SIGW-based 5G millimeter-wave antenna includes an upper dielectric board 1, a middle dielectric board 2, and a lower dielectric board 3 stacked in sequence from top to bottom, and the upper dielectric board 1, the middle dielectric board 2, and the lower dielectric board 3 fixedly connected, the upper surface of the upper dielectric board 1 is covered with a first copper clad layer 4, the first copper clad layer 4 is provided with a rectangular radiation window 5, and the upper surface of the upper dielectric board 1 is exposed at the radiation window 5, A 50Ω microstrip line 6, a λ / 4 impedance converter 7 and a rectangular metal patch 8 are attached to the lower surface of the upper dielectric plate 1, λ=c / f 0 , where f 0 is the center frequency of the 5G millimeter-wave antenna, c is the speed of light in free space (3×10 8m / s), 50Ω microstrip line 6 is used to access external radio frequency signal, 50Ω microstrip ...
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Abstract
The invention discloses an SIGW-based 5G millimeter wave antenna, which comprises an upper dielectric plate, a middle dielectric plate and a lower dielectric plate, wherein the upper surface of the upper dielectric plate is covered with a first copper-clad layer, the first copper-clad layer is provided with a rectangular radiation window, a 50-ohm microstrip line, a lambda / 4 impedance converter and a rectangular metal patch are attached to the lower surface of the upper dielectric plate, the 50-ohm microstrip line is used for accessing an external radio frequency signal, the 50-ohm microstrip line is connected with the lambda / 4 impedance converter, the lambda / 4 impedance converter is connected with the rectangular metal patch, the lambda / 4 impedance converter is used for performing impedance matching on the 50-ohm microstrip line and the rectangular metal patch, a plurality of round holes penetrating up and down are formed in the lower-layer dielectric plate, an annular metal patch coaxial with each round hole is arranged around the round hole, the lower layer dielectric substrate, the plurality of round holes and the annular metal patches arranged around the plurality of round holes form an electromagnetic field band gap structure, and the lower surface of the lower layer dielectric substrate is wholly exposed outside. The SIGW-based 5G millimeter wave antenna has the advantages of simple structure, low cost, low profile and large impedance bandwidth.
Description
technical field [0001] The present invention relates to a 5G millimeter wave antenna, in particular to a SIGW-based 5G millimeter wave antenna. Background technique [0002] Antennas are the exit and entrance of radio waves, and are essential and important equipment for wireless communication systems such as 5G. The characteristics of ultra-large bandwidth, ultra-high speed and ultra-low delay make the 5G wireless communication system urgently need antennas with large bandwidth and high gain. High-frequency millimeter waves are an inevitable trend in the development of 5G wireless communication systems. However, traditional rectangular waveguides, microstrip lines, and striplines have large losses in the millimeter wave band, which limits their application in high frequency bands. [0003] Substrate integrated waveguide (SIW) combines the advantages of traditional rectangular waveguide, microstrip line and stripline, and solves the above problems well. However, as the fre...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q9/04
CPCH01Q9/0414H01Q9/0464H01Q9/0407
Inventor 姜沛惠明张萌薛振彦黄金书潘群娜
Owner NANYANG NORMAL UNIV