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A miniaturized uwb-mimo antenna with triple notch characteristics

A technology of three-notch wave and antenna, which is applied in the direction of antenna, antenna coupling, antenna components, etc., can solve the problems of small antenna size and communication quality degradation

Active Publication Date: 2021-07-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the size of the antenna is getting smaller and smaller, and there will be strong electromagnetic coupling between the antenna elements in a limited space, which will degrade the communication quality

Method used

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  • A miniaturized uwb-mimo antenna with triple notch characteristics
  • A miniaturized uwb-mimo antenna with triple notch characteristics
  • A miniaturized uwb-mimo antenna with triple notch characteristics

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, the miniaturized UWB-MIMO antenna with triple-notch characteristics proposed in this paper is a centrosymmetric structure, including a square dielectric substrate (1), four radiating elements (2) arranged on the front of the dielectric substrate, and four electrical A tape gap structure (3), four parasitic branch structures (4), and a metal floor (6) arranged on the back of the dielectric substrate. The side length of the square dielectric substrate (1) is 34 mm, and it is made of FR4 material with a dielectric constant of 4.6 and a thickness of 1.6 mm; a diamond-like groove (5) is formed in the middle of the metal floor.

[0023] Such as figure 2 As shown, the four radiating units (2) are four stepped microstrip feeders of the same shape placed in a rotating and vertical manner, consisting of a wi...

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Abstract

The invention discloses a miniaturized UWB-MIMO antenna with triple notch characteristics, belonging to the technical field of antennas. The antenna is a center-symmetrical structure, including a square dielectric substrate, with 4 radiation units, 4 electromagnetic bandgap structures, and 4 parasitic branches on the upper surface of the dielectric substrate; a metal floor is covered on the lower surface of the dielectric substrate, and the middle of the floor is set There is a diamond-like groove. The four radiating elements are placed in a rotating and vertical manner, which can improve the isolation between the radiating elements; one L-shaped and one C-shaped slot on the radiating element can realize the double notch of the antenna at 3.3‑3.9GHz and 5.1‑5.9GHz Characteristics; the electromagnetic bandgap structure can realize the notch characteristics of the antenna at 7.3-8.5GHz; the parasitic branches between adjacent radiating elements can suppress the mutual coupling between the radiating patches, thus effectively improving the isolation between the radiating elements Spend. The invention can effectively reduce the size of the existing UWB-MIMO antenna, and also has the advantages of three notch characteristics, compact structure and the like.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a miniaturized UWB-MIMO antenna with triple notch characteristics. Background technique [0002] UWB (Ultra-Wideband) ultra-wideband technology has attracted the attention of a large number of scholars for its high data rate and wide bandwidth. Multiple-input-multiple-output (MIMO) technology uses multiple antennas at the transmitter and receiver to transmit data on multiple channels at the same time, which can increase channel capacity, and at the same time achieve diversity performance and reduce multiple influence of the diameter effect. So UWB-MIMO system is widely used in short distance, high data rate broadband communication. [0003] With the rapid development of wireless communication, today's portable consumer electronics and communication equipment are also developing towards miniaturization and high data rate, so antennas are also becoming more and more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q5/321H01Q1/52
CPCH01Q1/521H01Q5/321
Inventor 洪劲松陈执戬邓焱李雪飞周维思
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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