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A uwb MIMO antenna with controllable notch bandwidth

An antenna and notch technology, applied in the field of UWBMIMO antennas, can solve the problems of poor frequency selection characteristics and the inability to independently controllable adjustment of the frequencies on the left and right sides of the notch frequency band. Mode clear effect

Inactive Publication Date: 2018-10-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems caused by the poor frequency selection characteristic caused by the first-order notch characteristic of a single resonator and the inability to independently controllably adjust the left and right frequencies of the notch frequency band in the traditional ultra-wideband MIMO antenna with notch characteristics Inconvenience, the present invention provides a UWB MIMO antenna with controllable notch bandwidth

Method used

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  • A uwb MIMO antenna with controllable notch bandwidth
  • A uwb MIMO antenna with controllable notch bandwidth
  • A uwb MIMO antenna with controllable notch bandwidth

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Embodiment

[0028] In this embodiment, the outer side refers to the side away from the midline of the dielectric substrate, and the inner side refers to the side close to the midline of the dielectric substrate.

[0029] Such as figure 1 As shown, a UWB MIMO antenna with controllable notch bandwidth includes a dielectric substrate, two rectangular radiation units 1 and 2 are printed on the front of the dielectric substrate, and are symmetrical about the center of the dielectric substrate, and a floor is printed on the back of the dielectric substrate 9. It also includes two feeder lines 3 and 4 at the input end. The feeder lines at the input end are connected to the rectangular radiating units in a one-to-one correspondence. The parasitic strips 5 and 6 are set outside each feeder line at the input end. The total length is 18 mm, equivalent to half The mode resonance of the wavelength is around WLAN 5.2GHz.

[0030] Inverted L-shaped branches 7 and 8 extend from the outside of the rectan...

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Abstract

The invention discloses a UWB (Ultra Wide Band) MIMO (Multiple Input Multiple Output) antenna with a controlled trap bandwidth. The UWB MIMI antenna comprises a dielectric substrate, wherein two rectangular radiating elements are printed on the front face of the dielectric substrate; the two rectangular radiating elements are centrally symmetrical along the dielectric substrate; the UWB MIMI antenna further comprises two input end feeders, which are connected to the rectangular radiating elements; a parasitic strip is arranged at the outer side of each input end feeder; the outer side of each rectangular radiating element extends to form a reverse L-shaped branch; and a floor is printed on the back face of the dielectric substrate. The UWB MIMI antenna has the controlled trap bandwidth, so that the UWB MIMI antenna can be used for filtering interfering frequencies of other different bandwidths.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a UWB MIMO antenna with controllable notch bandwidth. Background technique [0002] With the rapid development of modern wireless communication technology, mobile communication systems have higher and higher requirements for antennas. Designing new ultra-wideband MIMO antennas with high frequency selectivity and controllable bandwidth notch characteristics has become a research hotspot in recent years. Multiple-input-multiple-output (MIMO) technology, because it can greatly increase the channel capacity without additionally increasing the spectrum range and input power, has increasingly become a new important research direction for antenna design. Ultra-wideband ultra-wideband (UWB) is a communication technology with a wide available frequency range, which is applied to wireless portable devices with large capacity and high data transmission rate. In order to furthe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/00
Inventor 黄惠芬肖书光
Owner SOUTH CHINA UNIV OF TECH
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