Process for manufacturing high gain dual-linear polarization or dual-circle polarization waveguide array antennas

Abstract

The invention publishes a wave guide array antennas manufacture method of high gain crewel polarized or the double circular polarized, which relates to a wave guide array antennas manufacture technique in the correspondence broadcast and measure-control domain. The invention has designed the radiation level, the horizontal polarization or the circular polarization feed wave guide level, the perpendicular polarization feed wave guide level, the perpendicular polarization feed wave guide lap, the feed way of using the square or the circular waveguide resonant cavity, has solved the receive and launch of the double polarized electromagnetism signal; The horizontal polarization uses the coupling feed way and the perpendicular polarization uses the direct feed way, completes the separation of the two polarized components, simultaneously may realizes the double circular polarized work. The invention has the double polarized radiation, the high feed efficiency, compact structure, low processing cost and so on merits, is specially suitable for the manufacture of each kind of satellite communication or single control station antenna which works in the double thread polarization or double circular polarized application situations.

Description

technical field [0001] The invention relates to a high-gain dual-polarization or dual-circular-polarization waveguide array antenna manufacturing method in the field of communication, broadcasting and measurement and control, and is especially suitable for various satellites working in the application of dual-linear polarization or dual-circular polarization Manufacture of communication or single-receiving antennas. Background technique [0002] Usually live TV satellites or communication broadcasting satellites work in the state of dual-polarization or dual-circular polarization, while most of the currently used flat-panel array antennas work in the state of single-line polarization or single-circular polarization. There are two ways to do it: [0003] One is the method of mechanical control, that is, the antenna is usually in the state of receiving horizontal polarization, and when it needs to receive vertical polarization, the antenna is manually or electrically rotated ...

AI Technical Summary

Problems solved by technology

Its disadvantage is that the structure is complicated, it needs control and rotation mechanism, and the dual polarization cannot be compatible at the same time

Its shortcomings are that the antenna occupies a large volume, high cost, and low equivalent surface efficiency

[0005] Chinese Patent No. 02805774.0, titled "Waveguide Slot Antenna and Its Manufacturing Method" discloses a waveguide slot antenna, and Chinese Patent No. 200520110435.8, titled "High Gain Waveguide Horn Array Panel Antenna" discloses a High-gain waveguide horn array panel antenna, both antennas have high-gain characteristics, but these two antennas have common deficiencies: ①The radiation horn, antenna cavity, and radiation slot are all conduit structures, which can only excite Single-polarized electromagnetic signals; ② Both patents have only one layer of feeder lines, and each layer can only transmit electromagnetic signals of one polarization. Both circular polarization and dual-line polarization cannot be transmitted at the same time, and the antenna can only be single-line. chemical work

[0006] The classification number (International patent classification) in PCT (International patent classification) H01Q / 13 / 10, 21 / 00 title is DUAL POLARIZED SLOTTED ARRAY ANTENNA patent, which adopts the form of two single-polarized waveguide slot antenna arrays, and the antenna has a complex layered structure, and the mouth Disadvantages such as low utilization efficiency

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