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Coplanar waveguide fed tri-band antenna for wlan/wimax

A technology of waveguide feeding and coplanar waveguide, which is applied to antennas, devices and circuits that enable antennas to work in different bands at the same time, can solve problems such as unfavorable processing and production, and complex structures.

Inactive Publication Date: 2018-07-31
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these methods have achieved compatibility with WLAN and WiMAX frequency bands by using slot antennas, the structure is a bit complicated, which is not conducive to processing and production.

Method used

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  • Coplanar waveguide fed tri-band antenna for wlan/wimax
  • Coplanar waveguide fed tri-band antenna for wlan/wimax
  • Coplanar waveguide fed tri-band antenna for wlan/wimax

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Embodiment Construction

[0018] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0019] see figure 1 with 2 , the embodiment of the present invention is provided with a dielectric substrate 1, a metal layer 5 is coated on the dielectric substrate 1, and four pairs of symmetrical rectangular slits 2, 3, 4 and 6 are etched on the metal layer 5.

[0020] The four pairs of left-right symmetrical rectangular slots 2 , 3 , 4 and 6 are arranged symmetrically along the centerline of one side of the feed structure of the dielectric substrate 1 .

[0021] The dielectric substrate 1 has a square structure, the side length L of the dielectric substrate 1 is 44-47 mm, the thickness h is 1.8-2.0 mm, the relative dielectric constant of the dielectric substrate 1 is 1.8-2.0, and the length L1 of the rectangular slit 2 is 28-31mm, preferably 30mm, width L2 is 1.4-1.65mm, preferably 1.58mm, length L5 of rectangular slit 3 is 28-35mm, preferably 3...

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Abstract

The invention discloses a coplanar waveguide feed triple-band antenna applied to WLAN / WiMAX, and relates to the triple-band antenna. The coplanar waveguide feed triple-band antenna is provided with a dielectric substrate, wherein the dielectric substrate is coated with a metal layer; four pairs of left-right symmetrical rectangular slots are etched in the metal layer; the four pairs of left-right symmetrical rectangular slots are symmetrically arranged along one side center line of a feed structure of the dielectric substrate; and a metal layer does not exist on the lower surface of the dielectric substrate. The triple-band antenna adopts the coplanar waveguide feed, and performs radiations through the slots; and the S11 parameters of a 2.4GHz frequency band, a 5.2GHz frequency band and a 5.8GHz frequency band are all less than -10dB, so that the coplanar waveguide feed triple-band antenna can be applied to the 2.4GHz frequency band, the 5.2GHz frequency band and the 5.8GHz frequency band of the WLAN / WiMAX.

Description

technical field [0001] The invention relates to a tri-frequency antenna, in particular to a co-planar waveguide-fed tri-frequency antenna applied to WLAN / WiMAX by adopting coplanar waveguide feeding and slot radiation. Background technique [0002] With the rapid development of wireless communication systems, especially the application of wireless local area network WLAN and global microwave interconnection access network WiMAX, new requirements are put forward for antennas as wireless transmitting and receiving terminals. On the one hand, antennas are required to have high gain and strong Directional radiation characteristics; on the other hand, the antenna is required to be compatible with multiple frequency bands and have performance advantages such as miniaturization. In order to adapt to the miniaturization of the communication system and the working environment of multi-frequency integration, as an antenna unit for wireless reception and transmission, it has the develo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q5/00
CPCH01Q1/38H01Q5/00
Inventor 李伟文李朋陈晓琦陈晓建王琛游佰强苏晋升李杰
Owner XIAMEN UNIV
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