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A minkowski-like fractal ultra-wideband antenna and its design method

An ultra-wideband antenna and fractal technology, applied in the field of wireless communication, can solve the problems of large physical size and difficult integration of ultra-wideband antennas, and achieve the effects of light weight, good directionality, and overcoming large size

Active Publication Date: 2022-02-25
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the physical size of current UWB antennas is large and not easy to integrate. Therefore, there is an urgent need for UWB antennas that can solve the above technical problems in design.

Method used

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  • A minkowski-like fractal ultra-wideband antenna and its design method
  • A minkowski-like fractal ultra-wideband antenna and its design method
  • A minkowski-like fractal ultra-wideband antenna and its design method

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Embodiment 1

[0050] Such as figure 1 As shown, the class Minkowski fractal ultra-wideband antenna of the present invention includes a dielectric substrate, and one side of the dielectric substrate is bonded with a radiation unit, a feed unit and a grounding unit;

[0051] The radiation unit is a fractal patch formed by at least 3 iterations of fractal;

[0052] The feeding unit is connected to the bottom of the radiation unit to form a whole, and the feeding unit is located in the middle of the dielectric substrate;

[0053] The grounding unit includes two grounding plates, and the two grounding plates are arranged symmetrically on both sides of the feeding unit, and a rectangular groove is opened on the bottom of one of the grounding plates close to the edge of the dielectric substrate.

[0054] Further, the fractal patch is a Minkowski fractal structure; the fractal patch is a 3rd-order structure of the Minkowski fractal structure, and the 1st-order structure is to cut off a rectangle of ...

Embodiment 2

[0061] Such as Figure 2a-2f Shown, the design method of a kind of Minkowski fractal ultra-wideband antenna of the present invention comprises the following steps:

[0062] (1) Using the Minkowski fractal method, the radiation unit is iteratively fractaled three times to obtain a fractal patch;

[0063] (1-1) The first rectangle of the same area is cut off at the four corners of the initial structure of the rectangular patch to form a primary cross-shaped patch consisting of 4 rectangular primary fractal units and 1 primary central unit, thus forming The first iterative structure was established, in which the size of the rectangular patch of the initial structure was 10mm*9mm, and the size of the first rectangle with the same area removed was 3.14mm*2.83mm;

[0064] (1-2) On the basis of the first iterative structure, the four corners of the four primary fractal units extending outward are cut off in the same way as the second rectangle of the same area to form four secondary...

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Abstract

The invention discloses a Minkowski-like fractal ultra-wideband antenna, which includes a dielectric substrate, and a radiation unit, a feeding unit and a grounding unit are pasted on one side of the dielectric substrate; the radiation unit is a fractal patch formed by at least three iterative fractals; the feeding The unit is connected to the bottom of the radiating unit to form a whole; the grounding unit includes two grounding plates, and the two grounding plates are symmetrically arranged on both sides of the feed unit, and a rectangular concave is opened at the bottom of one grounding plate near the edge of the dielectric substrate. groove. The antenna forms a Minkowski fractal structure through three iterations of fractal, which greatly increases the propagation path of the surface current of the radiating patch, effectively reduces the resonance frequency, and thus reduces the physical size of the antenna.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a Minkowski-like fractal ultra-wideband antenna and a design method thereof. Background technique [0002] Ultra-Wideband (Ultra-Wideband, UWB) is a wireless carrier communication technology. It does not use a sinusoidal carrier, but uses a nanosecond-level non-sinusoidal narrow pulse to transmit data. It occupies a wide spectrum range, at 3.1GHz The -10.6GHz frequency band occupies more than 500MHz of bandwidth. UWB technology has the characteristics of low power consumption, safe transmission, strong anti-interference ability, and strong multipath resolution ability, which makes UWB technology attract more and more researchers' interest in the fields of radio frequency, circuit, system and antenna design. [0003] Compared with other traditional wireless communication technologies (such as RFID, WIFI, etc.), UWB is a new type of carrier-free wireless...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q5/25H01Q9/04
CPCH01Q1/38H01Q1/48H01Q1/50H01Q5/25H01Q9/0407H01Q9/045
Inventor 邹强姜时雨
Owner TIANJIN UNIV
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