A dual-notch tunable ultra-wideband antenna based on varactor diodes

A technology of varactor diodes and ultra-wideband antennas, applied to antennas, devices that enable antennas to work in different bands at the same time, electrical components, etc., can solve the problems that the notch cannot be moved and has not been well resolved, and achieves compact structure, The effect of realizing frequency agility characteristics, improving flexibility and safety

Active Publication Date: 2017-09-05
上海东洲罗顿通信股份有限公司
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  • 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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  • A dual-notch tunable ultra-wideband antenna based on varactor diodes
  • A dual-notch tunable ultra-wideband antenna based on varactor diodes
  • A dual-notch tunable ultra-wideband antenna based on varactor diodes

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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 double-notch adjustable ultra-wideband antenna based on a varactor diode, which belongs to the technical field of antenna design. The antenna includes a dielectric substrate, a radiation patch, a microstrip feeder, a parasitic strip structure, a "U"-shaped metal strip, a metal strip line and a pad, a ground plate and a coaxial cable; the "U"-shaped metal strip for generating a high-frequency notch; and adjusting the operating frequency of the notch through a varactor; the parasitic strip structure includes a parasitic strip and a varactor, and the parasitic strip is used for generating a low-frequency notch; and The operating frequency of the notch is adjusted by a varactor diode. The present invention provides a double-notch adjustable ultra-wideband antenna based on varactor diodes, through which the varactor diodes can adjust the operating frequencies of the two notches, which can cover WiMAX and WLAN frequency bands respectively, and the two notches The adjustments do not affect each other, effectively realizing the frequency agility characteristics of the double notch wave.

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 Patents(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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