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Small UWB (ultra-wideband) antenna with band-notch characteristics in multiple frequency bands

An ultra-wideband antenna and characteristic technology, which is applied to antennas, devices that make antennas work in different frequency bands at the same time, and radiating element structures, etc. Antenna performance, effect of improved high frequency, good resonance and performance

Inactive Publication Date: 2015-09-30
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the development of wireless communication and the emergence of various applications, problems such as the shortage of frequency band resources, low frequency band utilization, narrow working bandwidth, and overlapping working frequency bands of different devices or antennas cannot be ignored.

Method used

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  • Small UWB (ultra-wideband) antenna with band-notch characteristics in multiple frequency bands
  • Small UWB (ultra-wideband) antenna with band-notch characteristics in multiple frequency bands
  • Small UWB (ultra-wideband) antenna with band-notch characteristics in multiple frequency bands

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention will be further described:

[0027] Such as Figure 1 to Figure 3 As shown, a small ultra-wideband antenna with band trapping characteristics in multiple frequency bands, including a ground plate 1, a dielectric substrate 2, a feed network 3 and a radiation patch 4, the dielectric substrate 2 is made of Teflon_based, The relative permittivity of the dielectric substrate 2 is 2.08, and its dielectric loss tangent is 0.001;

[0028] The antenna in this embodiment is fabricated on a dielectric substrate 2 with a length, width and height of 25mm, 20mm and 1mm respectively by etching, the ground plate 1 is printed on one side of the dielectric substrate 2, and the other side of the dielectric substrate 2 is printed with The feed network 3 and the radiation patch 4, the feed network 3 is composed of a microstrip line, the radiation patch 4 is a rectangular structure with stepped protrusions, and the steppe...

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Abstract

The invention discloses a small UWB (ultra-wideband) antenna with band-notch characteristics in multiple frequency bands. The antenna comprises an earth plate, a dielectric substrate, a feed network and a radiation patch, wherein the earth plate is arranged on one side of the dielectric substrate, the feed network and the radiation patch are arranged on the other side of the dielectric substrate, the radiation patch adopts a rectangular structure with a step-shaped bulge, the step-shaped bulge end of the radiation patch is connected with the feed network, a U-shaped groove and a T-shaped groove are etched in the radiation patch, and the feed network comprises microstrip lines. The antenna can effectively inhibit interference of signals from various narrow-band systems of WiMAX wireless communication in a work frequency band ranging from 3.3 GHz to 3.7 GHz, C-band satellite communication in a downlink frequency band ranging from 3.7 GHz to 4.2 GHz, digital microwave communication in the work frequency band ranging from 4.3 GHz to 4.5 GHz, large-capacity microwave communication in the work frequency band ranging from 4.4 GHz to 5.0 GHz, a part of WLAN (wireless local area network) wireless communication in the work frequency band ranging from 5.15 GHz to 5.35 GHz, to the UWB system. The antenna is small in size, simple in structure, easy to manufacture and wear, good in performance and capable of being applied to various UWB communications.

Description

technical field [0001] The invention relates to the technical field of antennas, and more specifically relates to a small ultra-wideband antenna with band trapping characteristics in multiple frequency bands. Background technique [0002] With the rapid development of science and technology in recent decades, low-power and high-speed transmission has become the key technology of modern wireless communication. At the same time, Ultra-wideband (UWB) technology began to appear, and then developed rapidly. Because of its high data transmission, broadband technology has become a research hotspot in current communication technology. However, with the development of wireless communication and the emergence of various applications, problems such as the shortage of frequency band resources, low frequency band utilization, narrow working bandwidth, and overlapping working frequency bands of different devices or antennas cannot be ignored. Therefore, in 2002, the Federal Communication...

Claims

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Application Information

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IPC IPC(8): H01Q5/25H01Q1/38H01Q5/335
Inventor 金杰张强刘青爽李茜王冰
Owner TIANJIN UNIV
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