Fractal circular patch antenna

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

Active Publication Date: 2020-12-04
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims to provide a fractal circular patch antenn

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  • Fractal circular patch antenna
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Embodiment Construction

[0021] like 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 practic...

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Abstract

The invention discloses a fractal circular patch antenna which comprises a fractal circular patch antenna, a substrate, a feeder line and a floor. The fractal circular patch antenna is a fractal circular shape based on the fractal geometry theory, fractal circular holes are dug at the edge of a basic circle along the radial direction, a fractal iteration factor is 1/n, n is a natural number largerthan 2, and n is equal to 3. The ideal first-order fractal is tangent to circular holes with the radius of R/3 of a 360-degree three-unit circumferential array at the inner side of the circumferenceof a basic circle, and the second-order fractal is tangent to a circular hole with the radius of R/9 and the 360-degree three-unit circumferential array at the inner side of the circular hole of the first-order fractal along the radial direction of the basic circle on the basis of the first order. In practical application, the circle centers of the first-order fractal round holes and the circle centers of the second-order fractal round holes move outwards in the radial direction by delta 1 and delta 2 respectively; and by adopting a coupled feeding mode, a feeder line is formed by connecting astraight line and a circular microstrip line. The circular microstrip line and a first-order fractal circular hole are concentric, and in an embodiment, delta 1 is 0.11 mm, and delta 2 is 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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IPC IPC(8): H01Q9/04H01Q1/38H01Q1/48H01Q1/50
CPCH01Q9/0407H01Q1/38H01Q1/48H01Q1/50
Inventor 陈永忠
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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