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Double-notch ultra-wideband antenna

An ultra-wideband antenna and double-notch technology, applied in the field of double-notch ultra-wideband antennas, can solve problems such as complex system structure, high cost, and large volume, and achieve widening of the working frequency band, reduction of signal mutual interference, and good ultra-wideband The effect of the characteristic

Inactive Publication Date: 2016-12-21
WENZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the introduction of a band-stop filter in an ultra-wideband (UWB) system can reduce the interference between the two, it leads to problems such as more complex system structure, larger volume, and higher cost.

Method used

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  • Double-notch ultra-wideband antenna

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Embodiment Construction

[0026] The present invention is an ultra-wideband antenna with double notches, its structure is as figure 1 , figure 2 As shown, the antenna includes a dielectric substrate (1), a radiation element (2), a metal ground plate (3) and a microstrip feeder (4). Wherein the radiation unit (2), the metal grounding plate (3) and the microstrip feeder (4) are all located on the upper surface of the dielectric substrate. The radiation unit (2) is located in the middle and upper part of the dielectric substrate (1), and is connected to the microstrip feeder (4) located in the middle and lower part, and two symmetrical metal grounding plates (3) are located on both sides of the microstrip feeder (4), and There is a certain gap with the microstrip feeder (4)

[0027] The thickness of the dielectric substrate (1) is 1.59mm, the dielectric is an FR-4 epoxy glass fiber cloth substrate, and the dielectric constant is 4.4.

[0028] The radiating unit (2) is composed of a rectangular and sem...

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Abstract

The invention disclose a double-notch ultra-wideband antenna, which comprises a dielectric substrate (1), a radiating element (2), a coplanar metal grounding plate (3), and a microstrip feeder (4), wherein double T-shaped filters (22, 23) are introduced onto the radiating element (2), rectangular complementary split-ring resonator (CSRR) structure grooves (31, 32) are formed in the grounding plate (3), the radiating element (2) is arranged on the upper middle part of the dielectric substrate (1), the microstrip feeder (4) is led to the radiating element (2) from the lower edge of the dielectric substrate (1) and is connected with the radiating element (2), and the grounding plate (3) is composed of two unfilled-corner rectangular metal plates which are positioned on two sides of the microstrip feeder (4) and equal in distances to the microstrip feeder (4). The double-notch ultra-wideband antenna adopts a coplanar waveguide feeding method, realizes ultra wideband by utilizing oval-like patches, and realizes notch features at the WiMAX (3.3-3.7GHz) and WLAN (5.15- 5.825GHz) frequency bands by utilizing the double T-shaped filters (22, 23), the grounding plate and the rectangular complementary split-ring resonator structure grooves. The double-notch ultra-wideband antenna can effectively reduce the mutual interference among the ultra-wideband system, the WLAN system and the WiMAX system, and realizes cooperative communication.

Description

technical field [0001] The invention relates to the field of ultra-wideband (Ultra-wideband, UWB) antennas, in particular to a double-notch ultra-wideband antenna. Background technique [0002] With the rapid development of wireless communication technology, higher requirements are placed on data transmission rate and clarity. In February 2002, the U.S. Federal Communications Commission determined that the frequency band of ultra-wideband was 3.1GHz to 10.6GHz, and officially opened it to the field of civilian communications. Therefore, ultra-wideband communication technology has received extensive attention. The main purpose of ultra-wideband systems is to achieve high-speed data transmission. [0003] Antenna, as a crucial component of an ultra-wideband system, needs to meet the requirements of different systems, such as operating frequency range, transmission power, directivity, etc. Printed antennas are widely used in UWB antenna design because of their light weight, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52
Inventor 刘桂曾喆林威洪陈芸妮白晶郅瑞行
Owner WENZHOU UNIVERSITY
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