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Multi-resonant broadband antenna

A wide-band antenna, multi-resonance technology, applied in the direction of resonant antenna, antenna, electrical short antenna, etc., can solve the problems of monopole antenna efficiency reduction, troubled monopole antenna, narrow resonance frequency band, etc.

Inactive Publication Date: 2013-02-06
HANWHA SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The monopole antenna of modern design adopts the Hilbert (Hilbert) grid structure, which has multi-band frequency characteristics; but the resonant frequency band formed by it is narrow
In addition, if the monopole antenna is made small, the resonant frequency band will become narrower, and the efficiency of the monopole antenna will decrease
In addition, there are technical limitations that plague the design of monopole antennas, which can limit their proper application in specific frequency bands

Method used

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Examples

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Embodiment Construction

[0034] Returning now to the diagram, examples of multi-band antennas currently in use include figure 1 The planar inverted-F antenna (PIFA) shown, figure 2 Antennas with meander line structures, stacked patch antennas, etc. are shown.

[0035] figure 1 The structure of the shown modern PIFA 10 is constructed in an inverted F shape on a ground plane 11 and divided into a feeder 13 and a short circuit 14 . The short circuit portion 14 shorts the radiating element 12 of the PIFA 10 from the ground plane 11 and exhibits resonance characteristics depending on the separation distance between the feed line 13 and the short circuit 14 and the shapes of the feed line 13 and the short circuit 14 . To realize the multi-resonance characteristic in the PIFA 10, the radiating elements 12 on the PIFA 10 are divided into sections having different sizes and then combined. In other words, several antennas having single-band characteristics are combined and used. PIFA 10 can be realized as ...

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Abstract

A multi-resonant broadband antenna is provided to maximize an area of an antenna per unit area by changing a shape of the antenna. A multi-resonant broadband antenna includes a dielectric substrate(600), a fractal radiation element(630), a feeding unit(620), and a ground(610). The fractal radiation element is positioned on a front side of the dielectric substrate and has at least one fractal lattice structure of a pattern with a cross, the teeth of a comb, or a thunder. The feeding unit is positioned on the front side of the dielectric substrate and feeds power to the fractal radiation unit. The ground is positioned on a rear side of the dielectric substrate.

Description

[0001] priority claim [0002] This application, by reference under 35 U.S.C 119, incorporates and claims all rights and interests in applications previously filed with the Korean Intellectual Property Office entitled Multi-resonant Broadband Antennas, each filed on April 16, 2007 and assigned serial number No. 10-2007-0037160, filed May 30, 2007 and assigned Serial No. 10-2007-0052930, and filed May 30, 2007 and assigned Serial No. 10-2007-0052929. technical field [0003] The present invention relates to a multi-resonant broadband antenna for multiple frequency bands, and more particularly, to a multi-resonant broadband antenna with a fractal structure. Background technique [0004] Examples of multi-band antennas currently in use include a planar inverted F antenna (PIFA) having a meander wire structure antenna as a radiating element or a stacked patch antenna. The conventional PIFA can be constructed on the ground plane of the antenna in an inverted F shape, and is divi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q5/00
CPCH01Q1/38H01Q5/335H01Q9/0407H01Q9/0421
Inventor 裵基亨金建佑太贤植
Owner HANWHA SYST CO LTD