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Controllable three-trapped-wave ultra-broadband antenna

A technology of ultra-wideband antenna and three-notch wave, which is applied in the direction of slot antenna, radiation element structure, circuit, etc., can solve the problem of single adjustment method, achieve the effect of reducing the size of the antenna, easy integration, and increasing the scope of application

Active Publication Date: 2015-03-25
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the disadvantages of the existing notch ultra-wideband antenna with a slot structure, which can only rely on adjusting the length of the notch to change the center frequency of the notch, and the adjustment method is single

Method used

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  • Controllable three-trapped-wave ultra-broadband antenna
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  • Controllable three-trapped-wave ultra-broadband antenna

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Embodiment Construction

[0018] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects. In the drawings of the following embodiments, the same reference numerals appearing in the drawings represent the same features or components, which can be applied in different embodiments.

[0019] Such as figure 1 As shown, a controllable three-notch ultra-wideband antenna is characterized in that it includes a dielectric substrate 1, a waveguide ground plate 2, a microstrip radiation patch 3 and a ring parasitic unit 4; the microstrip radiation patch 3 is fixed on The front side of the dielectric substrate 1; there is an arc-shaped H groove on the microstrip radiation patch 3; the waveguide grounding plate 2 is fixed o...

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Abstract

The invention provides a controllable three-trapped-wave ultra-broadband antenna which comprises a dielectric substrate, a waveguide ground plate, a micro-strip radiation paster and an annular parasitic element. The micro-strip radiation paster is fixed on the front face of the dielectric substrate. An arc-shaped groove H is formed in the micro-strip radiation paster. The waveguide ground plate is fixed on the back face of the dielectric substrate. Two L-shaped grooves are formed in the waveguide ground plate. The annular parasitic element is located on the back face of the dielectric substrate. The micro-strip radiation paster is located in the middle of the dielectric substrate. The trapped wave antenna with the arc-shaped groove H is designed, so that on the basis that the trapped wave function is achieved, the trapped wave center frequency is adjusted by adjusting and combining the parameters of the groove. Meanwhile, the three-trapped-wave function of the antenna is achieved through the annular parasitic element on the back face of the substrate, and two / three trapped waves of the antenna are switched through two switches.

Description

technical field [0001] The invention relates to an ultra-wideband antenna, in particular to a controllable triple-notch ultra-wideband antenna. Background technique [0002] Since the U.S. Federal Communications Commission (FCC) applied ultra-wideband (UWB) to the commercial field, communication systems operating at frequencies in the range of 3.1-10.6 GHz have been vigorously developed. UWB antenna is an important component and research hotspot in UWB system. From the perspective of the development trend of ultra-wideband antennas, antennas are required to have good omnidirectional radiation characteristics in an extremely wide frequency band and be able to radiate efficiently. However, the working frequency band of UWB communication system covers other narrowband communication system frequency bands, such as 3.3-3.6GHz Wireless Metropolitan Area Network (WiMax) frequency band, 5.1-5.9GHz Wireless Local Area Network (WLAN) frequency band and 7.25-7.75GHz X Frequency band ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q13/10
Inventor 董健胡国强徐曦施荣华秦小芳
Owner CENT SOUTH UNIV
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