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Four-notch ultra-wideband antenna

An ultra-wideband antenna and notch technology, which is applied to antennas, slot antennas, antenna grounding devices, etc., can solve the problems of increasing system size, complexity and cost, and cannot meet the needs of ultra-wideband communication systems, and achieve good notch performance, Effects with good gain, easy tuning and control

Active Publication Date: 2021-06-01
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the introduction of a filter structure in an ultra-wideband system greatly increases the volume, complexity and cost of the system, and the existing ultra-wideband antenna with a notch function that works in the ultra-wideband range and does not additionally add a filter structure is disclosed The report usually does not exceed three notches, which cannot meet the needs of ultra-wideband communication systems at this stage

Method used

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  • Four-notch ultra-wideband antenna
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Embodiment Construction

[0041] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0042] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0043] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "top", "bottom", "left", "right", "front", " Rear, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, Radial, Circumferential The orientation or posit...

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Abstract

The invention discloses a four-notch ultra-wideband antenna which comprises a dielectric substrate, a radiation unit, a microstrip feeder and a metal ground layer, wherein the radiation unit and the microstrip feeder are arranged on one surface of the dielectric substrate, and the metal ground layer arranged on the other surface of the dielectric substrate. One end of the microstrip feeder is connected with the radiation unit, and the other end of the microstrip feeder extends towards the lower edge of the dielectric substrate along the length direction of the dielectric substrate, the radiation unit is provided with a first slot and a second slot which are used for forming two different notch frequency bands, two sides of the microstrip feeder are provided with two first parasitic branches and two second parasitic branches which are used for forming the other two different notch frequency bands, and the first slot and the second slot are a symmetrical structure relative to the longitudinal central axis of the microstrip feeder. The two first parasitic branches and the two second parasitic branches are symmetrically distributed on the two sides of the microstrip feeder respectively. According to the ultra-wideband antenna, mutual interference between a UWB communication system and four narrowband communication systems can be avoided at the same time, the notch performance is good, notches are mutually independent, and debugging is convenient.

Description

technical field [0001] The present invention generally relates to the technical field of antennas, in particular to a four-notch ultra-wideband antenna. Background technique [0002] Since the Federal Communications Commission of the United States allocated the 3.1-10.6GHz frequency band to ultra-wideband communication, ultra-wideband technology (Ultra-Wideband, UWB) has been widely used in commercial and civil wireless communication systems with short distances and high transmission rates. focus on. In the frequency band allocated by the existing UWB system, there are many narrowband communication systems, such as: 3.4GHz~3.6GHz wireless metropolitan area network (WiMAX), 5.725~5.825GHz wireless local area network (WLAN), 7.25~7.75GHz X Band downlink satellite signals and the 8.025-8.4GHz International Telecommunication Union frequency band (ITU), etc. [0003] In order to solve the problem of overlapping frequency bands between the UWB system and other wireless communica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q5/25H01Q5/28H01Q5/385H01Q13/10
CPCH01Q1/38H01Q1/48H01Q1/50H01Q5/25H01Q5/28H01Q5/385H01Q13/106
Inventor 刘巧灵邵明乾江奕辰
Owner BYD CO LTD
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