Multi-stopband UWB Antenna Based on Half-mode Substrate Integrated Waveguide Cavity

A half-mode substrate integration, ultra-wideband antenna technology, applied in the direction of waveguide, antenna, waveguide-type devices, etc., can solve the problems of low stopband quality factor, difficulty in forming multiple stopbands, antenna performance deterioration, etc., to achieve stopband Good suppression effect, advantageous for miniaturization, and simple design

Inactive Publication Date: 2012-02-01
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

These three methods have inherent limitations. On the one hand, the formed stopband quality factor is relatively low, the bandwidth is too large, and the suppression is small.
On the other hand, it is difficult to form multiple stop bands, and the antenna performance will also deteriorate when forming multiple stop bands

Method used

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  • Multi-stopband UWB Antenna Based on Half-mode Substrate Integrated Waveguide Cavity
  • Multi-stopband UWB Antenna Based on Half-mode Substrate Integrated Waveguide Cavity
  • Multi-stopband UWB Antenna Based on Half-mode Substrate Integrated Waveguide Cavity

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Embodiment 1

[0020] Embodiment 1 is a half-mode cavity double-stop broadband antenna, embodiment 2 is a half-mode cavity triple-stop broadband antenna, and embodiment 3 is a half-mode cavity four-stop broadband antenna.

Embodiment 2

[0021] The upper and lower substrate materials used in antenna design are Taconic TLY-5, the dielectric constant is 2.2, and the tangent loss is 0.0009. The adhesive material used is Taconic TPG-30, the dielectric constant is 3.0, and the tangent loss is 0.0009. The corner loss is 0.0038. The thickness of the substrate is 0.508mm, and the thickness of the adhesive layer is 0.12mm, such as figure 1 shown. The metal used was copper 0.018 mm thick. Example 1: For the dual stopband antenna, the slot is designed on the right side of the cavity and on the side close to the radiation disk, and the two modes used are half TE 101 die and semi-TE 301 mode, the cavity is small, and the designed stopband frequencies are located at 3.5GHz and 5.8GHz, which are the operating frequencies of WLAN and WiMAX. Embodiment 2: For the three stopband antenna, the slot is set on the left side of the cavity close to the input port, and metallized through holes are used inside the cavity to adjust ...

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Abstract

The multi-stop-band ultra-wideband antenna based on the half-mode substrate integrated waveguide cavity relates to an ultra-wideband antenna technology applicable to short-distance wireless communication and data transmission, including two layers of dielectric substrates, and the lower dielectric substrate (5) The lower surface is provided with a lower metal copper foil (10), an intermediate metal layer (7) and an adhesive layer (6) are provided between the lower dielectric substrate and the upper dielectric substrate (4), and the upper dielectric substrate The upper surface is laid with a disk antenna (1), a microstrip feeder (2), and a microstrip impedance transformation line (3) made of metal copper foil. The disk antenna (1) is connected to the microstrip impedance transformation line (3) and The microstrip feeder (2) is connected, and the ground of the disc antenna (1) is formed by the middle metal layer (7); the half-mold cavity (11) is made of the middle metal layer (7) and the lower metal copper foil, the lower dielectric The substrate is composed of a metallized through hole (12) connecting the middle metal layer (7) and the lower metal copper foil, and an inner metallized through hole (13) is also provided in the half-mold cavity.

Description

technical field [0001] The invention relates to an ultra-wideband antenna technology applicable to short-distance wireless communication and data transmission. The antenna can effectively solve the problem that the broadband communication system is interfered by other existing narrowband communication system signals. It adopts Half Mode Substrate Integrated Waveguide HMSIW (Half Mode Substrate Integrated Waveguide HMSIW) and double-layer planar printed circuit technology, which is especially suitable for broadband communication systems that need to suppress multiple interferences or work in multiple frequency bands. Background technique [0002] UWB communication system has made great progress in the past five years, but its wide application still faces many practical problems that need to be solved. One of the important difficulties is how to deal with interference from other communication or adjacent radio frequency systems, such as WLAN (Wireless Local Area Network) opera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q13/00H01P3/00H01Q13/08
Inventor 洪伟董元旦
Owner SOUTHEAST UNIV
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