Wide-beam dielectric resonator antenna
A dielectric resonator and wide beam technology, applied in resonant antennas, antennas, electrical short antennas, etc., can solve problems such as narrow beams, achieve the effects of increasing resonant frequency, enhancing radiation intensity, and widening bandwidth
Active Publication Date: 2021-01-22
XIDIAN UNIV
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Problems solved by technology
[0006] The purpose of the present invention is to propose a wide-beam dielectric resonator antenna for the above-mentioned defects in the prior art, which is used to solve the technical problem of the narrow beam existing in the prior art, so as to expand the application range of the antenna
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] refer to figure 1 , the present invention includes: a dielectric substrate 1, a metal floor 2, a dielectric resonator 3, a rectangular coupling gap 4, a rectangular microstrip line 5 and a square annular metal wall 6, wherein:
[0025] The dielectric substrate 1 is a square FR4 dielectric board with a dielectric constant of 4.4, a side length of 80 mm, and a thickness of 0.8 mm.
[0026] The metal floor 2 is printed on the upper surface of the dielectric substrate 1 and has the same size as the dielectric substrate 1 . A rectangular coupling slit 4 is etched at the center of the metal floor 2 and parallel to the Y-axis. The size of the rectangular coupling slit 4 is 15mm×1.5mm.
[0027] The dielectric resonator 3 is fixed at the center of the upper surface of the dielectric substrate 1 . Since the working mode of the quadran...
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The invention provides a wide-beam dielectric resonator antenna, which is used for solving the technical problem of narrow beams in the prior art. The wide-beam dielectric resonator antenna comprisesa dielectric substrate, a metal floor printed on the upper surface of the dielectric substrate, a columnar dielectric resonator fixed at the central position of the upper surface of the dielectric substrate, a microstrip line printed on the lower surface of the metal floor, and a square annular metal wall arranged at the periphery of the dielectric resonator, a rectangular coupling gap parallel tothe Y axis is formed in the center of the metal floor; a groove which penetrates through the central axis of the dielectric resonator and is parallel to the Y axis is formed in the top of the dielectric resonator; a plurality of rectangular sawteeth are arranged at the upper parts of the two ends of each side of the square annular metal wall; a rectangular microstrip line and the rectangular coupling gap are vertically crossed in space, the intersection point and the midpoint of the square annular metal wall are located on the central normal of the dielectric substrate, the central axis of the dielectric resonator coincides with the central normal of the dielectric substrate, and the wide wave beam on the E plane and the H plane is achieved, and the bandwidth is wide.
Description
technical field [0001] The invention belongs to the technical field of antennas, and relates to a wide-beam dielectric resonator antenna, which can be applied to wireless communication systems such as mobile satellite communication and satellite positioning. Background technique [0002] With the rapid development of wireless communication, many wireless communication systems put forward higher requirements on the signal coverage of the antenna, and require the antenna to provide a larger signal coverage. Therefore, wide-beam antennas have received more and more attention and attention. [0003] The dielectric resonator antenna is a resonant cavity antenna. Since it was first proposed in 1983, the research on the dielectric resonator antenna has gained widespread attention. Compared with traditional antennas, dielectric resonator antennas have the advantages of higher design freedom, higher radiation efficiency, various feeding forms, and various antenna modes. However, th...
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Login to View More IPC IPC(8): H01Q9/04H01Q1/36H01Q1/24H01Q25/04
CPCH01Q1/241H01Q1/36H01Q9/0485H01Q25/04
Inventor 焦永昌李睿洋王海燕张依轩
Owner XIDIAN UNIV