UWB antenna with band-stop characteristic

An antenna and characteristic technology, applied in the field of UWB antenna, can solve the problems of increasing the volume and weight of the antenna, and achieve the effect of simple and compact structure, miniaturization and integration, and convenient design

Inactive Publication Date: 2015-09-09
北京邮电大学世纪学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A currently disclosed implementation is to add an additional filter at the rear end of the antenna to achieve the function of filtering out interference frequency band signals, but this is at the cost of increasing the volume and weight of the antenna
Therefore, the existing technical problem is how to improve the structural characteristics of the UWB antenna itself to achieve the band-rejection characteristics in the narrow frequency band without adding additional filters.

Method used

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  • UWB antenna with band-stop characteristic
  • UWB antenna with band-stop characteristic
  • UWB antenna with band-stop characteristic

Examples

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Embodiment 1

[0034] figure 1 A schematic diagram of the front structure of the band-stop UWB antenna provided by an embodiment of the present invention; figure 2 A schematic diagram of the back structure of the band-stop UWB antenna provided for an embodiment of the present invention, wherein the pattern within the range of the dotted line represents the corresponding position of each component on the front of the band-stop UWB antenna on the back, not the actual structure, nor used to limit the material of the parts . like figure 1 and figure 2 As shown, the band stop UWB antenna in this embodiment includes a dielectric substrate 1, and the first surface of the dielectric substrate 1 is sequentially provided with a radiation unit 2, a feeding structure 3 and two coplanar metal floors 4 from top to bottom. , the two coplanar metal floors 4 are symmetrically distributed on both sides of the feed structure 3, and the feed structure 3 is connected to the radiation unit 2; on the second s...

Embodiment 2

[0037] This embodiment is similar to the structure of the band-stop UWB antenna provided in Embodiment 1, the difference is that, as figure 1 and figure 2 As shown, the first area and the second area are the corresponding areas on the second surface of the coplanar waveguide 8 of the first surface, wherein the coplanar waveguide 8 is the feed structure 3 and the coplanar waveguide 8. Two slit-shaped structures formed by the metal floor 4, the feed structure 3 serves as the conduction band of the coplanar waveguide, and the coplanar metal floor 4 serves as the ground of the coplanar waveguide.

[0038] like figure 2 As shown, the first microstrip resonator 51 and the second microstrip resonator 52 have the same shape, and they are distributed symmetrically on the antenna with the central axis 7 as the reference. The first microstrip resonator 51 on the left is taken as an example below to illustrate The structure of the resonator:

[0039] The first resonator 51 includes: ...

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Abstract

The invention provides a UWB antenna with a band-stop characteristic. The UWB antenna comprises a dielectric substrate. The first surface of the dielectric substrate is provided with radiation units, a feed structure and coplanar metal ground plates. The radiation units are connected with the feed structure. The first region arranged on the second surface of the dielectric substrate is provided with a first micro-strip resonator. The second region arranged on the second surface of the dielectric substrate is provided with a second micro-strip resonator. The first micro-strip resonator and the second micro-strip resonator are respectively connected with the coplanar metal ground plates via metal connecting components. The notch characteristic within the preset frequency range can be realized, and center frequency of a stop band can be conveniently controlled by controlling resonance length of the micro-strip resonators so that the UWB antenna has advantages of being convenient to design, easy to process, low in cost, simple and compact in structure, miniature and convenient for integration with an active circuit.

Description

technical field [0001] The invention relates to an ultra-wideband antenna in the field of wireless communication, in particular to a UWB antenna with band-stop characteristics. Background technique [0002] In recent years, with the advancement of modern microelectronics technology and the development of high-speed devices, ultra-wideband (UWB) wireless technology has begun to be used by civilians. UWB has super-strong wireless device connection capabilities, and has the advantages of high performance, low power consumption and low cost, and has become one of the most competitive technologies. In recent years, there have been many researches on antennas used in short-distance wireless communication, and many new forms of UWB antennas have emerged. [0003] The current research mainly focuses on UWB antennas capable of omnidirectional radiation, and its main types are microstrip antennas, microstrip slot antennas and flat-panel monopole antennas. The frequency band of UWB s...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/08
Inventor 杨慧春毕战红张震
Owner 北京邮电大学世纪学院
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