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Ultra-wideband antenna with adjustable double notches based on varactors

A varactor diode and ultra-wideband antenna technology, applied to antennas, devices that make the antenna work in different bands at the same time, electrical components, etc. Achieve the effect of frequency agility, increased flexibility and safety

Active Publication Date: 2015-09-02
上海东洲罗顿通信股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the notch produced by the first two methods cannot be moved, and the third method can only achieve adjustable single notch
To realize the adjustable double notch needs to overcome the mutual influence between the two varactor diodes, and this problem has not been well solved yet.

Method used

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  • Ultra-wideband antenna with adjustable double notches based on varactors
  • Ultra-wideband antenna with adjustable double notches based on varactors
  • Ultra-wideband antenna with adjustable double notches based on varactors

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Embodiment Construction

[0028] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] The three-dimensional view of the overall structure of the double-notch adjustable ultra-wideband antenna based on varactor diodes of the present invention, as figure 1 Shown: a double-notch adjustable ultra-wideband antenna based on varactor diodes, including a dielectric substrate 1, a radiation patch 2, a microstrip feeder 3, a "U"-shaped metal strip 4, a parasitic strip structure 5, Grounding plate 6, coaxial cable 7, metal welding wire and pad 8; the upper part of the upper surface of the dielectric substrate 1 is closely attached to the radiation patch 2, and the radiation patch 2 has a "convex" shape groove, and a parasitic strip structure 5 is arranged in the "convex" shaped groove; a microstrip feeder 3 is arranged close to the lower end part of the upper surface of the dielectric substrate 1, and one end of the microstrip f...

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Abstract

The invention discloses a ultra-wideband antenna with adjustable double notches based on varactors and belongs to the technical field of antenna design. The antenna comprises a dielectric substrate, a radiation chip, a microstrip feed line, a parasitic strip structure, a U-shaped metallic strip, a metallic tape line, a bonding pad, a grounding board, and a coaxial cable. The U-shaped metallic strip is used for generating a high-frequency notch. The varactor adjusts the operating frequency of the high-frequency notch. The parasitic strip structure comprises a parasitic strip and a varactor. The parasitic strip is used for generating a low-frequency notch and the varactor adjusts the operating frequency of the low-frequency notch. According to the ultra-wideband antenna with adjustable double notches based on varactors, the operating frequencies of the two notches are adjusted by the varactors so as to cover a WiMAX frequency band and a WLAN frequency band while the adjustment of the two notches does not influence each other. A frequency agility characteristic of the double notches is effectively achieved.

Description

technical field [0001] The invention belongs to the technical field of antenna design, and relates to a double notch adjustable ultra-wideband antenna based on varactor diodes. Background technique [0002] With the approval of the US Federal Communications Commission (FCC) to use 3.1-10.6GHz as a short-range wireless communication frequency band, UWB communication systems have attracted more and more attention due to their excellent working characteristics. However, there are many narrowband communication systems in the UWB frequency band, such as: WLAN (5150-5350MHz; 5725-5825MHz), WiMAX (3300-3690MHz) and other system frequency bands. UWB antenna is one of the key components of UWB communication system, and its characteristics directly affect the performance of the whole system. In order to avoid interference with these existing narrowband communication systems, it is urgent to design an ultra-wideband antenna with stopband characteristics. [0003] At present, there ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/25H01Q5/328H01Q5/314H01Q1/38
Inventor 唐明春王浩熊汉陈世勇于彦涛曾浩张新征李明玉胡盛东王韬曹海林
Owner 上海东洲罗顿通信股份有限公司
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