A High Gain Ultra Wide Beam Antenna
A wide-beam antenna and high-gain technology, which is applied in the field of high-gain ultra-wide beam antenna, can solve the problems of high cost, complicated manufacture, and large array aperture loss, and achieve the effects of small electrical performance, simple manufacture, and low cost
Inactive Publication Date: 2015-11-25
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
[0006] The antenna gain obtained by the first type of antenna is relatively low, and the beam width is also small, generally 3dB beam width < 120 degrees, and it is only used for a single antenna unit; the second method is difficult to implement, and the cost is high. The beam width is also small, generally 3dB beam width < 120 degrees. At the same time, the loss of the array aperture is large, which reduces the antenna efficiency, and is difficult to realize and complicated to manufacture. Difficulty, complex production, high cost, and the system can only work in time-division mode
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[0021] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0022] figure 1 Among them, an omnidirectional antenna or an antenna array with an omnidirectional pattern is used as the radiator 1. In the embodiment of the present invention, a circular antenna unit array with an omnidirectional pattern working in the Ku-band 12.5 GHz is used as the radiator. The size of the specific antenna unit And the aperture size of the array can be obtained through simulation calculation of existing commercial software.
[0023] The surface of the reflector 2 can be a bent polygon, and the specific surface form and structural size can be calculated according to commercial electromagnetic simulation software. The embodiment of the present invention adopts figure 2 In the bent polygonal structure shown, the shape of the polygonal cross section (side view) is trapezoidal.
[0024] The dielectric body 3 between the radiator 1 and the reflecto...
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The invention discloses a high gain ultra-wide wave beam antenna, comprising a radiator (1) and a reflecting device (2); the radiator (1) is installed above the reflecting device (2); a dielectric body (3) is further installed between the radiator (1) and the reflecting device (2); and the surface of the reflecting device (2) is a curved surface. The invention varies the directional diagram of the radiator with omni-directional radiation directional diagram through the reflecting device, achieves the wave beam of ultra-wide coverage by adjusting the correlation parameters of the structure of the reflecting device, and simultaneously achieves the purpose of beam forming.
Description
technical field [0001] The invention relates to a high-gain ultra-wide beam antenna in the fields of radar, communication, measurement and control, and remote sensing, and is particularly suitable for use requirements requiring ultra-wide-angle beam scanning and ultra-wide-angle beam forming coverage. Background technique [0002] At present, there are three main methods of manufacturing ultra-wide beam antennas in the fields of radar, communication, measurement and control, and remote sensing: [0003] One is to use a low-gain antenna element or use a planar or curved reflective structure to obtain a wide beam pattern. [0004] The second is to use the array weighted shaping method to obtain a wide beam pattern. [0005] The third is to use multiple antenna units or arrays to obtain a wide beam pattern in a time-division manner. [0006] The antenna gain obtained by the first type of antenna is relatively low, and the beam width is also small, generally 3dB beam width <...
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IPC IPC(8): H01Q19/12
Inventor 梁毅周旭张小苗乔宏章张喜明
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP