A dual circularly polarized helical antenna integrating transceiver
A circularly polarized antenna, dual circularly polarized technology, applied to helical antennas, antenna unit combinations with different polarization directions, non-resonant long antennas, etc. To achieve the integration of different-rotation dual-frequency transceiver and other issues
Active Publication Date: 2019-08-20
SHANDONG INST OF AEROSPACE ELECTRONICS TECH
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Problems solved by technology
[0003] The conventional helical antenna can realize the wide beam function and is less affected by the installation environment, but it cannot achieve the integration of dual-frequency transmission and reception in different rotations; the crossed dipole antenna can use the bridge to achieve the integration of transmission and reception, but the beam range is narrow and cannot meet the long-term requirements. Communication needs; there is a document (Wide-beam Dual-frequency Microstrip Antenna Modern Radar for Mobile Satellite System, Volume 30, No. 12, December 2008, 67-69) describes that a wide-beam transceiver antenna can be realized through a microstrip dielectric antenna , but the actual installation of this type of antenna is greatly affected by the installation environment. If it is used in spaceborne and other fields, the beam will inevitably become narrower
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[0018] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0019] The present invention provides a dual-circularly polarized helical antenna with integrated transceiver, which realizes the integrated antenna with different rotation and dual frequency and wide beam by feeding power to the upper and lower helices through bottom feed and top feed respectively.
[0020] Such as figure 1 As shown, the transceiver integrated dual circularly polarized helical antenna of the present invention includes a coaxial feed tube, a circularly polarized antenna I, a circularly polarized antenna II, a base plate 8, a feeding probe 7, a network printed board 4 and a connection method Lan 2; wherein, the coaxial feed tube is composed of an inner conductor 1 and an outer conductor 3, and the outer conductor and the inner conductor at the top of the coaxial feed tube are welded together; the outer conductor at the bottom end of the coa...
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The invention discloses a transmission-receiving integrated dual-circular polarization spiral antenna. By the transmission-receiving integrated dual-circular polarization spiral antenna, different rotation, dual frequencies, transmission-receiving integration and wide wave beam can be achieved. In the transmission-receiving integrated dual-circular polarization spiral antenna disclosed by the invention, an emission end is arranged at a top end of the antenna, coaxial feeding is performed by a feeding head at the top end, a receiving end is arranged at a bottom end of the antenna, feeding is performed by a bottom end of a power division phase-shift network on a network printed board, the antenna at the emission end and the antenna at the receiving end can be arbitrarily and separately designed according to required rotation directions, frequency bands and directional diagrams so as to obtain the required wide wave beam function, the transmission-receiving integrated antenna with different rotation (or same rotation), dual frequency bands and wide wave beam is achieved, the influence of an installation environment on the transmission-receiving integrated dual-circular polarization spiral antenna is low, and the transmission-receiving integrated dual-circular polarization spiral antenna is suitably used for UHF frequency band to X frequency band.
Description
technical field [0001] The invention relates to the technical field of communication antennas, in particular to a transceiver-integrated dual circularly polarized helical antenna. Background technique [0002] The current space-borne wide-beam helical antenna cannot achieve dual-frequency hetero-rotation circular polarization at the same time, and the transmitting and receiving antennas work in separate modes. In order to achieve the purpose of reducing the number of antennas in practical applications and meeting the needs of measurement and control communication, it is necessary to design an integrated transceiver for the antenna so that it can work in two frequency bands, and the frequency bands should also work in two different directions of rotation. Under circular polarization, the functions of the previous two antennas are realized through a single transceiver integrated antenna, which reduces the installation location and saves satellite manufacturing costs. [0003]...
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IPC IPC(8): H01Q11/08H01Q21/24H01Q1/36
Inventor 于常永曲晓云于忠喜张慧萍
Owner SHANDONG INST OF AEROSPACE ELECTRONICS TECH