Shaped beam directional antenna
A technology of directional antennas and shaped beams, which is applied in antennas, antenna couplings, antenna arrays, etc., can solve the problems of complex feed network, difficult to take into account at the same time, complex antenna structure, etc., to improve low elevation gain, improve suppression ability, The effect of improving isolation
A technology of directional antennas and shaped beams, which is applied in antennas, antenna couplings, antenna arrays, etc., can solve the problems of complex feed network, difficult to take into account at the same time, complex antenna structure, etc., to improve low elevation gain, improve suppression ability, The effect of improving isolation
CN112701493APending Publication Date: 2021-04-23上海雷骥电子科技有限公司
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[0071] Such as figure 1 A schematic diagram of a three-dimensional decomposition structure of a shaped beam directional antenna provided by the present invention, figure 2 The schematic structural diagram of the front view of a shaped beam directional antenna provided by the present invention after removing the cover is shown as follows:
[0072] A shaped beam directional antenna is used for satellite navigation receivers to perform directional transmission and reception of satellite navigation signals, including:
[0073] Cover 10, patch antenna 20, monopole oscillator 30, antenna support structure 40 and three-dimensional metal choke slot 50, wherein:
[0074] At least two patch antennas 20 are arranged symmetrically on a plane to form an antenna array;
[0075] A plurality of monopole oscillators 30 are installed on the antenna array to form a monopole array, and each monopole oscillator 30 is arranged along the periphery of the antenna array;
[0076] The antenna suppo...
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The invention discloses a shaped beam directional antenna. The shaped beam directional antenna comprises an antenna array formed by arranging at least two patch antennas on a plane, a monopole array formed by arranging a plurality of monopole oscillators along the periphery of the antenna array, and a choke groove structure body formed by arranging at least two three-dimensional metal choke grooves at intervals outside a metal barrel-shaped antenna supporting structure body in a sleeving manner, wherein the heights of the three-dimensional metal choke grooves forming the choke groove structure body are sequentially reduced from inside to outside and are lower than the height of the antenna supporting structure body, the antenna array is installed at the top part of the antenna supporting structure body, the monopole array, the antenna array and the choke groove structure body are covered with a cover shell, and the cover shell is fixed to the three-dimensional metal choke groove in the outermost layer of the choke groove structure body. The shaped beam directional antenna is used for dual-band transceiving orientation of satellite navigation signals by a satellite navigation receiver, has the quality characteristics of dual circular polarization, high and low elevation gain and high phase center precision, is compact in structure, high in integration level and convenient to assemble and use, and can meet the application requirements of special scenes.
Description
technical field [0001] The invention relates to an antenna, in particular to a shaped beam directional antenna, and belongs to the technical field of radio antenna equipment production. Background technique [0002] Antenna is a component used to transmit or receive electromagnetic waves. It is widely used in communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy and other engineering systems. In the information age, everything that uses electromagnetic waves to transmit information is Need to rely on the antenna to work. [0003] With the development of satellite navigation technology, the accuracy of radio positioning and navigation has been continuously improved. Correspondingly, higher requirements have been put forward for the quality and performance of the shaped beam directional antenna as the front end of the satellite navigation receiver. [0004] The shaped beam directional antenna as the front end o...
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Patent Timeline
23 Apr 2021
Publication
CN112701493A
- IPC
- H01Q21/00; H01Q1/12; H01Q1/38; H01Q1/52
- CPC
- H01Q1/12; H01Q1/38; H01Q1/523; H01Q1/528; H01Q21/0006
- Inventors
- 樊小景; 张楷生