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A UWB low-band deformable PIFA for body area networks

An ultra-broadband, low-frequency technology, applied in the field of ultra-broadband low-frequency deformed PIFA, can solve the problems of difficult production and complex structure of the planar inverted-F antenna, and achieve the effect of impedance matching and widening of the frequency band.

Active Publication Date: 2017-04-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these planar inverted-F antennas are complex in structure and difficult to manufacture

Method used

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  • A UWB low-band deformable PIFA for body area networks
  • A UWB low-band deformable PIFA for body area networks
  • A UWB low-band deformable PIFA for body area networks

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0020] Such as Figure 4 , 5 , an ultra-wideband low-frequency deformed PIFA applied to body area networks, including an antenna radiating unit, a floor 1, a feeder 2 and an SMA antenna connector 4, wherein the antenna radiating unit includes a radiating piece 5 and a shorting piece 6, and the radiating piece 5 One end of the floor 1 is connected with the short circuit piece 6, the top of the feed piece 2 is connected with the radiation piece 5, the bottom of the feed piece 2 is connected with the inner conductor 3 of the SMA antenna connector 4, and the other end of the floor 1 forms a bent section 7, The bent section 7 is bent upwards and leftwards from the other end of the floor 1; the SMA antenna connector 4 is connected to the coaxial cable to output the signal rec...

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Abstract

The invention discloses an ultra-wide-band and low-frequency-band deformed planar inverted-F antenna (PIFA) applied to a body area network. The ultra-wide-band and low-frequency-band deformed PIFA comprises an antenna radiating element, a floor, a feeding piece and a sub-miniature-A (SMA) antenna terminal. The antenna radiating element comprises a radiating piece and a short circuit piece. The radiating piece is connected with one end of the floor through the short circuit piece. The top of the feeding piece is connected with the radiating piece, and the bottom of the feeding piece is connected with an inner conductor of the SMA antenna terminal. The other end of the floor forms a bent section. The PIFA has the advantages that the size is small and the feeding mode is simple, and is suitable for communication of the body area network.

Description

technical field [0001] The invention relates to the field of body area network communication, in particular to an ultra-wideband low-frequency segment deformed PIFA applied to the body area network. Background technique [0002] At present, the proposed ultra-wideband antennas for wireless body area network are relatively large in size and are easily affected by the lossy medium of the human body. Since the radiation of the planar inverted-F antenna (Planar Inverted-F Antenna, PIFA) to the human body is reduced, and the specific absorption rate is low, a planar inverted-F antenna for human body communication has been designed. However, these planar inverted-F antennas have complex structures and are difficult to manufacture. [0003] In general, planar inverted-F antennas can be classified as monopole antennas, figure 1 , figure 2 , image 3 The evolution of three kinds of monopole antennas to planar inverted F antennas are given respectively: the first one is to bend t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/36
Inventor 刘雄英刘辉邓春萍
Owner SOUTH CHINA UNIV OF TECH