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A Fractal Circular Patch Antenna

A circular patch and fractal technology, applied in resonant antenna, antenna grounding device, antenna grounding switch structure connection and other directions, can solve the problem of miniaturization of circular patch antenna

Active Publication Date: 2021-12-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a fractal circular patch antenna to solve the miniaturization problem of the existing circular patch antenna

Method used

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  • A Fractal Circular Patch Antenna
  • A Fractal Circular Patch Antenna
  • A Fractal Circular Patch Antenna

Examples

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Embodiment Construction

[0021] Such as Figure 1-Figure 7 Shown: a kind of fractal circular patch antenna of the present invention, wherein said fractal circular patch antenna (1) is according to fractal geometry theory, digs the fractal circular hole radially at the edge of the complete basic circle with reference to radius R, The fractal iteration factor is 1 / n, and n is a natural number greater than 2. In the example of the present invention, R is 15 mm, and the iteration factor is 1 / 3; the ideal first-order fractal is tangent to a radius inside the basic circle circle and is a circular hole of R / 3. Then the 360-degree 3-unit circular array; the ideal second-order fractal is on the basis of the first-order, and a radius of (R / 3) / 3= The circular hole of R / 9, the center of the basic circle, the first-order fractal circle, and the second-order fractal circle are on a radial radial line, and there is also a 360-degree 3-unit circular array, and so on, there can be third-order, fourth-order...; in prac...

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Abstract

The invention discloses a fractal circular patch antenna, which comprises a fractal circular patch antenna, a base, a feeder, and a floor; the fractal circular patch antenna is a fractal circular shape based on the theory of fractal geometry, and is formed along the radial direction on the edge of a basic circle Dig the fractal circular hole, the fractal iteration factor is 1 / n, n is a natural number>2, and the example of the present invention is n=3; the radius of the ideal first-order fractal tangent 360 degree 3-unit circular array on the inner side of the basic circle is R / 3 On the basis of the first-order fractal, the second-order fractal is tangent to the inside of the first-order fractal circular hole along the radial direction of the basic circle. A circular hole with a radius of R / 9 is a 360-degree 3-unit circular array; in practical applications, a The center of the first-order and second-order fractal circular holes move outwards in the radial direction by Δ 1 ,Δ 2 ;Adopt the coupling feeding method, the feeder line is connected by a straight line + ring microstrip line, the ring segment microstrip line and the first-order fractal circular hole are concentric, in the example Δ 1 =0.11mm, Δ 2 = 0.13 mm.

Description

technical field [0001] The invention relates to a patch antenna, in particular to a fractal circular patch antenna. Background technique [0002] Patch antennas are widely used in the communication field. They are antennas with a small cross-section and are easy to conform to shape. However, for the low-frequency band of the radio frequency band, such as the L-band, the plane size is relatively large, and the plane size is often expected to be more miniaturized. [0003] Circular antennas are often used in patch antennas, and circular antennas in low-frequency bands such as L-band also have the problem of relatively large plane size. [0004] Square patch antennas have methods of miniaturization using fractal means, but there are few fractal methods for circular ones. Contents of the invention [0005] The invention aims to provide a fractal circular patch antenna to solve the miniaturization problem of the existing circular patch antenna. [0006] Therefore, the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q9/04H01Q1/38H01Q1/48H01Q1/50
CPCH01Q9/0407H01Q1/38H01Q1/48H01Q1/50
Inventor 陈永忠
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA