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

Fractal reconfigurable vehicle-mounted short-wave antenna

A short-wave antenna and antenna technology, applied in the field of communication and electromagnetic interference research, can solve the problems of small gain, increase the complexity of the antenna tuner, and be unfavorable to the application requirements of complex electromagnetic environment, and achieve the solution of low efficiency and improve efficiency and gain. Effect

Active Publication Date: 2020-06-12
中国电波传播研究所
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the low frequency band, due to the small size of the half-loop antenna, its gain is small, which is not conducive to the application requirements of complex electromagnetic environments
The input impedance of the other half-loop antenna changes drastically with frequency, which increases the complexity of the antenna tuner

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
  • Fractal reconfigurable vehicle-mounted short-wave antenna
  • Fractal reconfigurable vehicle-mounted short-wave antenna
  • Fractal reconfigurable vehicle-mounted short-wave antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, this embodiment discloses a fractal reconfigurable vehicle-mounted short-wave antenna, including two grounding devices 4, and three antenna bodies are installed sequentially from top to bottom between the two grounding devices, and the form of the antenna body Including but not limited to square antenna body, loop antenna body and triangular antenna body, each antenna body is connected and fixed by a vertical rod.

[0019] Such as figure 1 As shown, in this embodiment, the top is a square antenna body 1, the middle and the following are triangular antenna bodies, the vertical rod passes through the vertex of the middle triangular antenna body 2, and the top of the vertical rod is connected to the top of the upper square antenna body. The horizontal bars are connected, and the bottom ends of the vertical bars are connected with the top corners of the triangular antenna body 3 below.

[0020] Different types of TE / TM electric small antennas can be formed ac...

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

The invention discloses a fractal reconfigurable vehicle-mounted short-wave antenna which comprises two grounding devices, three antenna bodies are sequentially installed between the two grounding devices from top to bottom, the form of each antenna body comprises but is not limited to a square antenna body, an annular antenna body and a triangular antenna body, and the antenna bodies are connected and fixed through a vertical rod. According to the fractal reconfigurable vehicle-mounted short-wave antenna disclosed by the invention, the problem of low gain of a dead-zone-free vehicle-mounted semi-ring antenna is solved by applying a fractal technology. The problem that the vehicle-mounted antenna is limited by a vehicle body structure, materials and layout is solved by applying a reconfigurable technology, and the efficiency and gain of the vehicle-mounted antenna are further improved.

Description

technical field [0001] The invention belongs to the field of communication and electromagnetic interference research, in particular to a fractal reconfigurable vehicle-mounted electric small-size short-wave antenna in the field. Background technique [0002] The most commonly used short-wave antennas in vehicles are half-loop antennas, three-loop antennas and whip antennas. They are easy to install, easy to maneuver, and are important means to solve "communication on the move". [0003] The widespread use of the whip antenna on the vehicle is mainly determined by its electrical performance (higher efficiency, gain of about 5.15dBi), which can meet the requirements of long-distance communication. The radiation of the whip antenna is very weak in the direction of high elevation angle, and it cannot be connected between the nearest landing point of the sky wave (about 100km) and the farthest point of the ground wave (more than ten kilometers). [0004] Half-loop antennas have ...

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 Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50H01Q1/48H01Q7/00H01Q1/32H01Q1/12
CPCH01Q1/36H01Q1/50H01Q1/48H01Q7/00H01Q1/3208H01Q1/12
Inventor 朱金鹏李文超李焕庆
Owner 中国电波传播研究所
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