Bionic tri-band monopole antenna

A monopole antenna, a technology imitating biology, applied in the field of mobile communication, can solve problems such as interference, not easy to conform to the human body, etc., and achieve good radiation characteristics and novel antenna structure

Inactive Publication Date: 2014-08-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing ultra-wideband (3.1-10.6GHz) human body LAN antennas use hard plates, which are not easy to conform to the human body, and cover other existing wireless communication systems, such as WiMAX (3.3-3.7GHz), C-band satellite communication systems (3.7~4.2GHz), which will lead to interference between systems, so it is very important to design an antenna covering 3.1~3.3GHz, 4.2~4.9GHz and 6~10.6GHz frequency bands

Method used

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  • Bionic tri-band monopole antenna
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  • Bionic tri-band monopole antenna

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Embodiment

[0030] like figure 1 As shown, a bionic three-band monopole antenna includes an antenna radiation unit, a coplanar waveguide feeding part and a flexible dielectric substrate 6, and the coplanar waveguide feeding part is composed of a 50Ω microstrip line 4 and a floor 5 , the 50Ω microstrip line 4 is located in the middle of the floor 5, and the antenna radiation unit and the coplanar waveguide feeding part are etched on the same side of the flexible dielectric substrate.

[0031] The antenna radiating unit is composed of an S-shaped branch 1, a U-shaped branch 2 and an i-shaped branch 3, so that the antenna has a three-band characteristic; the U-shaped branch 2 is composed of a left branch and a right branch, and the U-shaped The bottom of the branch is connected with a 50Ω microstrip line. The S-shaped branch 1 is composed of two semi-circular rings. The two semi-circular rings are respectively the upper semi-circular ring and the lower semi-circular ring. The midpoint of th...

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Abstract

The invention discloses a bionic tri-band monopole antenna which comprises an antenna radiation unit, a coplanar waveguide feed part and a flexible medium substrate. The coplanar waveguide feed part is composed of a 50-ohm microstrip line and a floor, the 50-ohm microstrip line is located in the middle of the floor, and the antenna radiation unit is composed of an S-shaped branch knot, a U-shaped branch knot and an i-shaped branch knot. The U-shaped branch knot is formed by a left branch knot and a right branch knot, the bottom of the U-shaped branch knot is connected with the 50-ohm microstrip line, the S-shaped branch knot is formed by two semicircular rings, the two semicircular rings are respectively the upper semicircular ring and the lower semicircular ring, and the i-shaped branch knot is loaded between the U-shaped branch knot and the S-shaped branch knot. The bionic tri-band monopole antenna is suitable for the field of body area networks.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a bionic three-band monopole antenna. Background technique [0002] In today's society, the speed of population aging is getting faster and faster, and people's requirements for quality of life are getting higher and higher. The wireless human body communication technology used in the medical and health field has aroused great research interest. The human body area network system can monitor and transmit human physiological data in real time, and it plays an important role in telemedicine, mobile health care and entertainment. As an essential part of the human body LAN system, the antenna also has important development and application prospects. Ultra-wideband technology has the characteristics of low transmission power and high data transmission rate, and is suitable for human body LAN systems. The ultra-broadband low-frequency band 3.1-4.9GHz and high-frequency band 6.0-10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q5/01H01Q5/10
Inventor 刘雄英邸允会邓春萍
Owner SOUTH CHINA UNIV OF TECH
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