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Composite fractal ultra-wideband antenna

An ultra-wideband antenna and fractal technology, which is applied to the connection of the antenna, the antenna grounding switch structure, and the devices that make the antenna work in different frequency bands at the same time, to achieve the effects of good return loss performance, stable radiation performance, and large working bandwidth.

Inactive Publication Date: 2017-06-27
XIAMEN UNIV TAN KAH KEE COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three-band split-growth fractal microstrip antenna only uses a single split-growth fractal structure and does not use a composite fractal structure. It belongs to an improved single fractal antenna. Compared with the composite fractal ultra-wideband antenna of this application, its wide-band working characteristics There is still a big gap

Method used

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  • Composite fractal ultra-wideband antenna
  • Composite fractal ultra-wideband antenna
  • Composite fractal ultra-wideband antenna

Examples

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the drawings and embodiments.

[0033] Such as figure 1 As shown, this embodiment provides a composite fractal ultra-wideband antenna, which includes an antenna ground plate and a radiating patch. The antenna ground plate and the radiating patch are respectively attached to both sides of the substrate, and the antenna ground plate is a complete antenna. Metal ground structure, the radiating patch is a split growth-Cantor composite fractal structure.

[0034] In this embodiment, the split-growth-Cantor composite fractal structure adopts the Cantor fractal structure as the basic structure, and the small square metal area inside it is replaced with the split-growth fractal structure.

[0035] In this embodiment, the split-growth-Cantor composite fractal structure adopts a Cantor fractal structure of at least 2 orders. The iterative process of the Cantor fractal structure is as figure 2 As shown, the origi...

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Abstract

The invention relates to a composite fractal ultra-wideband antenna comprising an antenna ground plate and a radiation patch. The antenna ground plate and the radiation patch are respectively bonded to both sides of a substrate. The antenna ground plate is of an all-metal ground structure. The radiation patch is of a splitting growth-Cantor composite fractal structure. The invention can simultaneously cover the 3.1 to 10.6 GHz band of ultra-wideband communication, the 2.4 to 2.4835 GHz band of a radio frequency identification system, the 2.57 to 2.62 GHz band of the fourth generation mobile communication TD-LTE standard, the 3.30 to 3.40 GHz, 4.40 to 4.50 GHz, and 4.80 to 4.99 GHz candidate bands of the fifth generation mobile communication, and meanwhile meets the requirements for small size, low thickness, low return loss and large operating bandwidth.

Description

Technical field [0001] The invention relates to the field of antenna design, in particular to a composite fractal ultra-wideband antenna. Background technique [0002] Ultra-wideband communication is a wireless communication technology with low cost, high data transmission rate, good signal penetration, and low transmit power. It has a wide range of applications in wireless personal area networks, precise ranging, metal detection and other fields. After the IEEE 802.15.3a standard was proposed, the ultra-wideband wireless access technology was further standardized. The frequency band for ultra-wideband (UWB) communications determined by the Federal Communications Commission (FCC) is 3.1 to 10.6 GHz. [0003] Radio frequency identification technology is a kind of non-contact automatic identification technology realized by radio frequency communication that emerged in the 1990s. It automatically identifies target objects and obtains relevant data through radio frequency signals. The...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q5/25
CPCH01Q1/38H01Q1/50H01Q5/25
Inventor 林斌张培涛蔡沅坤叶广雅毛云海林畅张宇
Owner XIAMEN UNIV TAN KAH KEE COLLEGE
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