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

Koch fractal antenna and design method thereof

A fractal antenna and fractal technology, which is applied to antennas, antenna grounding devices, and devices that enable antennas to work in different bands at the same time, can solve the problems of high precision machining, high processing cost, and large form and size, and achieve the goal of overcoming the size Large, lightweight, low-profile effect

Active Publication Date: 2013-06-19
ZHENJIANG ZHENGKAI ELECTRONICS
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although many traditional wireless communication antennas can work in multiple wireless frequency bands, their working frequency bands are very narrow and can only cover one working frequency band, and there are still requirements for large form size, high processing cost, high profile or machining accuracy advanced defects

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
  • Koch fractal antenna and design method thereof
  • Koch fractal antenna and design method thereof
  • Koch fractal antenna and design method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] figure 1 A schematic diagram of the front of the antenna. Among them, 1 is the dielectric substrate, which is FR-4, and the dielectric constant is 4.4. The structure of 2 is the main radiation unit. Two Koch fractal operations are performed on the 2 main radiation unit, and the obtained 3 Koch primary fractal, 4 Koch two The sub-fractal changes the path of the surface current of the main radiation unit. In order to open a U-shaped gap 5 on the main radiation unit 2, in order to change the flow direction of the surface current at the top, the feeder 6 connected to the main radiation unit is connected to the feeder terminal 7. Feeds the entire antenna.

[0023] figure 2 It is the back structure of the antenna. Wherein the grounding plate 8 is in the shape of a rectangle. Interact with the main radiation unit 2 to change the electromagnetic distribution of th...

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 Koch fractal antenna and a design method thereof. Operations about various technologies and shapes are performed on a microstrip patch antenna on the basis of the Koch fractal theory, own characteristics of the microstrip patch antenna are utilized, and thereby own radiation characteristics of the antenna are changed to form characteristics covering multiple frequency bands and operation bandwidths. According to the fractal antenna, the operating frequency band is in ranges from 1.6GHz to 2.2GHz and from 2.6GHz to 4.0GHz, the relative bandwidth relative to the center frequency 1.8GHz is 33.33%, the absolute bandwidth of a second frequency band is 2.6GHz to 4.0GHz, and the relative bandwidth relative to the center frequency 3.4GHz is 41.18%. The Koch fractal antenna has the advantages that the structure is simple, the size is small, the weight is low, the cross section is low, the frequency bands are multiple, the bandwidth is large, the integration is easy, and the Koch fractal antenna can be applied to modern wireless communication systems in distributed control system (DCS) / personal communication system (PCS) / time division-synchronization code division multiple access (TD-SCDMA) and worldwide interoperability for microwave access (WiMax) frequency bands.

Description

technical field [0001] The invention belongs to the field of wireless communication, and in particular relates to a Koch fractal antenna. Background technique [0002] With the rapid development of mobile communication technology, antennas, as an important part of wireless communication equipment, are key components that affect the overall performance of communication systems, and are widely used in systems such as global positioning systems, satellite communications, and personal mobile terminals. People's requirements for mobile communication are getting higher and higher, and they need communication devices that can work in multiple frequency bands at the same time and have excellent performance, such as personal mobile device applications from GSM, DCS, PCS to 3G, from GPS to Wi-Fi and WiMax, communication Frequency bands are allocated to various applications, and the frequency bands are not contiguous with each other. [0003] Although many traditional wireless communi...

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
IPC IPC(8): H01Q1/38H01Q1/48H01Q5/00H01Q5/20
Inventor 杨利霞石斌施卫东
Owner ZHENJIANG ZHENGKAI ELECTRONICS
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