5 results about "Parabolic antenna" patented technology

The utility model discloses a kind of bipolarity radiating antennas, including antenna mast and parabolic antenna being set on antenna mast, including the assembly component being set between antenna mast and parabolic antenna, assembly component includes connecting frame, right-angle frame, fixed part and arc piece;Connecting frame and right-angle frame are set between antenna mast and parabolic antenna, for assembling and fixing to parabolic antenna, fixed part and arc piece are clamped in the outer wall of antenna mast, the utility model is installed in the top side of antenna mast by connecting frame and right-angle frame on assembly component, then fixed part and arc piece clamped installation in the outer wall of antenna mast, twice stable installation can be carried out to parabolic antenna;While adjustable fixed part and arc piece, according to the size of different antenna mast, flexible matching corresponding radian accessory, to increase the contact area when clamping and fixing, further strengthen the stable effect after installation.

We generally describe an antenna, in particular a parabolic antenna, comprising: a primary reflector, in particular a parabolic dish, a feed antenna and / or a secondary reflector for transmitting and / or reflecting an electromagnetic wave towards the primary reflector and / or receiving a said electromagnetic wave reflected from the primary reflector, a feed coupled to the feed antenna and / or secondary reflector, wherein the feed antenna and / or secondary reflector is coupleable, via the feed, to a radio-frequency transmission and / or reception device, and an actuator unit coupled to one or more of the feed antenna, the secondary reflector and the feed, wherein the actuator unit is configured to move the feed antenna and / or the secondary reflector, by exerting a mechanical force on the feed antenna and / or the secondary reflector and / or the feed, relative to the primary reflector.

Corrective meta surface lens is used to reduce the illumination and spill-over losses and improve the overall efficiency of a parabolic antenna when is horn-mounted, and / or top-mounted, and / or deposited directly on the frontal reflector surface of the parabolic antenna. For the horn-mounted model, a meta surface lens is placed in front of or in the aperture of the feed horn to reduce side lobe level, which results in lower parabolic antenna spill-over losses and overall efficiency improvement by more than 40% (1.5 dB). For the top-mounted model, the meta surface lens is mounted on top of (or above) the parabolic reflector, which results in reduction in illumination losses, and greater than 70% (2.5 dB) efficiency. The meta surface lens has a wideband response, is lightweight and has a lattice structure which makes it a great candidate for withstanding wind forces.

This invention relates to a high-gain dual-polarized parabolic antenna system and its performance preservation method. The system includes: a parabolic reflector; a feed source disposed at the focal or near-focal region of the parabolic reflector; the feed source includes a printed circuit board (PCB) on which metal oscillator elements are formed by etching; the metal oscillator elements include at least two sets of orthogonally arranged oscillators, forming radiation in two orthogonal polarization directions; each oscillator element integrates a low-frequency radiating section for a first frequency band and a high-frequency radiating section for a second frequency band, the first and second frequency bands corresponding to the 900MHz and 1800MHz frequency bands, respectively; the feed source radiates dual-polarized electromagnetic waves through the metal oscillator elements, and the electromagnetic waves are reflected by the parabolic reflector to form a high-gain directional beam. This invention achieves a compact structure and low-cost manufacturing while significantly improving the electrical performance of the antenna over a wide bandwidth, providing an efficient and flexible solution for modern wireless communication.

The utility model discloses a kind of antenna subsystem, it is related to satellite communication technical field, the system includes: including antenna feed system and antenna servo control system: antenna feed system includes splash board cap type feed parabolic antenna, circular waveguide rotary joint and quadrature mode sensor assembly;Splash board cap type feed parabolic antenna is used to receive Ku frequency band signal sent by satellite and is transmitted through waveguide tube, and radiate to satellite to be emitted signal;Circular waveguide rotary joint is used to adjust polarization angle to match the polarization direction of satellite signal;Quadrature mode sensor assembly has two independent ports, respectively for connecting receiving link and transmitting link, to realize the physical isolation of transceiving signal;Antenna servo control system includes for controlling driving component according to satellite position information to drive splash board cap type feed parabolic antenna to adjust attitude, help to solve the problem that prior art cannot realize antenna subsystem high-efficiency transceiving signal.