Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A X-Band Wide Beam Circularly Polarized Antenna for Lunar Surface Patrol

A technology of circularly polarized antenna and patrol device, which is applied to antennas, leaky waveguide antennas, antennas and other directions suitable for movable objects. Omnidirectional beams, etc.

Active Publication Date: 2015-09-16
SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The omnidirectional beam of the hemispherical surface cannot be realized by the traditional helical antenna;
[0005] 2) While the traditional helical antenna achieves a wide beam, the rear lobe is high, which is greatly affected by the environmental conditions of the installation boundary

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A X-Band Wide Beam Circularly Polarized Antenna for Lunar Surface Patrol
  • A X-Band Wide Beam Circularly Polarized Antenna for Lunar Surface Patrol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Referring to the accompanying drawings showing embodiments of the invention, the invention will be described in more detail below. However, the present invention may be implemented in different dimensions and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are presented so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to others skilled in the art. In these drawings, relative dimensions may be exaggerated or reduced for clarity.

[0026] now refer to figure 1 An example diagram describing in detail the structure of the X-band wide-beam circularly polarized antenna used for the lunar surface rover. It includes: high-frequency coaxial socket 1, feeding high-frequency signals through connecting high-frequency cables; coaxial waveguide conversion 2, converting high-frequency signals from coaxial transmission mode to waveguide transmission mode; circular polarizer 3, cir...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An X-band wide beam circularly polarized antenna for a lunar rover mainly and structurally comprises a high-frequency coaxial socket (50 Omega, SMA or TNC), a coaxial waveguide converter, a circular polarizer, an antennal shield with a beam broadening device and an antenna support. A high-frequency signal is fed via a high-frequency cable and is converted into a waveguide transmission signal via the coaxial waveguide converter, and a linear polarization signal is converted into a circular polarization signal via the circular polarizer. Electromagnetic waves are radiated from a waveguide aperture, the beam is broadened via the antenna shield, and a circular polarization directional diagram is formed. The X-band wide beam circularly polarized antennal overcomes detects that the beam width of the conventional antenna is not enough, the back lobe of a wide beam antenna is higher, and the antenna is easily interfered by the environment. The omnidirectional directional diagram of the antenna can satisfy demand of the rover for ground communication with various poses, and very low back lobe radiation lowers the influence of the rover mounting environment on the radiation performance of the antenna.

Description

technical field [0001] The invention relates to an X-band wide-beam circularly polarized antenna, in particular to an X-band wide-beam circularly polarized antenna for a lunar patroller. Background technique [0002] At present, the traditional X-band omnidirectional antenna adopts the form of a helical antenna. A helical antenna is an antenna with a helical shape. It consists of a metal helix with good electrical conductivity, and is usually fed by a coaxial line. The core wire of the coaxial line is connected to one end of the helical line, and the outer conductor of the coaxial line is connected to the grounded metal mesh (or plate). connect. The radiation direction of the helical antenna is related to the circumference of the helix. When the circumference of the helix is ​​much smaller than one wavelength, the direction of the strongest radiation is perpendicular to the helix axis; when the circumference of the helix is ​​on the order of one wavelength, the strongest ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/24H01Q13/20H01Q1/42H01Q1/27
Inventor 温沫张顺波钱巧元
Owner SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com