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Photonic crystal fractal array antenna for mobile communication

A technology of photonic crystals and array antennas, applied in antennas, antenna arrays, antenna components, etc., can solve the problems of simultaneous coverage of mobile communication frequency bands, and achieve the effect of miniaturization and good radiation performance

Active Publication Date: 2019-12-20
XIAMEN UNIV TAN KAH KEE COLLEGE
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although the composite fractal structure has good broadband working characteristics, it is a single antenna after all. Although the three composite fractal antennas designed by our research group have a large working bandwidth, they only cover the fourth and fifth generation mobile communication frequency bands. , failed to achieve simultaneous coverage of the second, third, fourth and fifth generation mobile communication frequency bands

Method used

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  • Photonic crystal fractal array antenna for mobile communication
  • Photonic crystal fractal array antenna for mobile communication
  • Photonic crystal fractal array antenna for mobile communication

Examples

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] This embodiment provides a photonic crystal fractal array antenna for mobile communication, such as figure 1 As shown, the antenna includes a substrate, an antenna ground plate attached to the back of the substrate, and a photonic crystal fractal array radiation patch attached to the front of the substrate. The antenna ground plate is an all-metal ground structure, and the photonic crystal fractal array radiates The patch is an antenna array composed of 144 small photonic crystal antennas arranged according to the Cantor fractal array structure.

[0028] In this embodiment, the size of the small photonic crystal antenna is 1.4mm ± 0.1mm 1.4mm±0.1mm, its structure is as figure 2 shown.

[0029] In this embodiment, the small photonic crystal antenna is made up of nine square holes in 3 rows and 3 columns on the square metal patch, and the size o...

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Abstract

The invention relates to a photonic crystal fractal array antenna for mobile communication. The antenna comprises a substrate, an antenna grounding plate attached to the back of the substrate, and a photonic crystal fractal array radiation patch attached to the front of the substrate. The antenna grounding plate is of an all-metal grounding structure. The photonic crystal fractal array radiation patch is an antenna array which is composed of 144 small photonic crystal antennas arranged according to a Cantor fractal array structure. A (32mm+ / -1mm)*(32mm+ / -1mm) second-order Cantor fractal structure is used as a basic array arrangement structure of the antenna, and one small photonic crystal antenna is placed in each of 144 2mm*2mm small square areas inside to form the photonic crystal fractal array radiation patch. The photonic crystal fractal array antenna provided by the invention covers the working frequency ranges of a variety of mobile communication systems at the same time, can be placed in a mobile communication phone, and meets the requirement for small size, low thickness, low return loss, and large work bandwidth.

Description

technical field [0001] The invention relates to the field of multi-band compatible mobile communication mobile phone antennas, in particular to a photonic crystal fractal array antenna for mobile communication. Background technique [0002] Mobile communication is one of the most important applications of wireless technology. It can support multi-band, multi-standard, and multi-mode mobile communication technology. It is the core key technology for the future development of my country's wireless communication application business. At present, the communication frequency bands of the GSM standard are 905~915MHz, 950~960MHz, 1710~1785 MHz, 1805~1880 MHz, the communication frequency bands of the TD-SCDMA standard are 1880~1920 MHz, 2010~2025 MHz, 2300~2400 MHz, WCDMA Standard communication frequency bands are 1920-1980 MHz and 2110-2170 MHz. At present, the fourth-generation mobile communication technology has entered the practical stage of commercialization. The TD-LTE stand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q5/20H01Q5/307H01Q1/24H01Q1/36H01Q1/48
CPCH01Q1/243H01Q1/36H01Q1/48H01Q5/20H01Q5/307H01Q21/00
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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