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Multiple attenuation band ultra-wideband antenna of integration waveguide cavity based on semi-norm substrate

A half-mode substrate integrated, ultra-wideband antenna technology, applied in the directions of waveguides, antennas, waveguide-type devices, etc., can solve the problems of low stopband quality factor, difficulty in forming multiple stopbands, and antenna performance deterioration, etc. The effect of good suppression effect, favorable for miniaturization, and simple design

Inactive Publication Date: 2008-10-01
SOUTHEAST UNIV
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  • Claims
  • 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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  • Multiple attenuation band ultra-wideband antenna of integration waveguide cavity based on semi-norm substrate
  • Multiple attenuation band ultra-wideband antenna of integration waveguide cavity based on semi-norm substrate
  • Multiple attenuation band ultra-wideband antenna of integration waveguide cavity based on semi-norm substrate

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Embodiment 1

[0019] 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.

[0020] 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 0.018mm thick. 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 WLA...

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Abstract

The invention provides a multi-stopband ultra-wideband antenna based on a semi-module substrate integrated waveguide cavity, relating to an ultra-wideband antenna technology which can be applied in short distance wireless communication and data transmission. The multi-stopband ultra-wideband antenna comprises two layers of dielectric substrates. A lower metal copper foil (10) is arranged on the lower surface of a lower dielectric substrate (5). An intermediate metallic layer (7) and a binding layer (6) are arranged between the lower dielectric substrate and an upper dielectric substrate (4). A disc antenna (1), a microstrip feeder (2) and a microstrip impedance transformation line (3) which are produced by the metal copper foil are laid on the upper surface of the upper dielectric substrate. The disc antenna (1) is connected with the microstrip feeder (2) via the microstrip impedance transformation line (3). Land of the disc antenna (1) is consisted of the intermediate metallic layer (7). A semi-module cavity (11) is consisted of the intermediate metallic layer (7), the lower metal copper foil, the lower dielectric substrate and a metalized via hole (12) connecting the intermediate metallic layer (7) and the lower dielectric substrate. An internal metalized via hole (13) is arranged in the semi-module 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 Applications(China)
IPC IPC(8): H01Q1/38H01Q13/00H01Q13/08H01P3/00
Inventor 洪伟董元旦
Owner SOUTHEAST UNIV
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