Broadband dielectric resonator antenna

A dielectric resonant antenna and wideband technology, applied in the field of broadband dielectric resonant antenna, can solve the problems that the way of adjusting the impedance matching of the antenna is not easy to process, and the antenna processing is complicated, so as to reduce the complexity of the system, reduce the processing cost, and avoid the feeding network Effect

Inactive Publication Date: 2015-07-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

In "IEEE TRANSATIONS ON ANTENNAS AND PROPAGATION" 2007, Volume 55, Issue 5, "broadband dielectric resonator antenna with metal coating", the bandwidth of the antenna is increased to 47% by covering the three sides of the dielectric resonator with a metal layer. But the processing of the antenna is more complicated
In "IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS" Volume 7 paper "H-shaped dielectric resonator antenna for wideband applications" in 2008, an H-shaped dielectric resonator was used to achieve the broadband characteristics of the antenna. The bandwidth of the antenna is 62 %, but in this design, the way the antenna adjusts the impedance matching is not easy to process

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Embodiment Construction

[0021] A dual-band circularly polarized dielectric antenna according to a specific embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] like figure 1 , figure 2 As shown, the broadband dielectric resonant antenna includes a dielectric metal plate 1 , a radiation dielectric 2 and a coaxial probe 5 .

[0023] The radiation medium device 2 is arranged above the grounded metal plate 1 , and the coaxial probe 5 penetrates the grounded metal plate 1 and goes deep into the inside of the radiation medium device 2 .

[0024] The center of the radiation medium 2 coincides with the center of the ground metal plate 1 in the vertical direction. In this example, the size of the ground metal plate 1 is 80mm×80mm×1mm. The size of the radiation medium 2 is 40mm×40mm×24.5mm, and the dielectric constant of the radiation medium 2 is 10. The radiation medium 2 is etched with a cross-shaped slit 3. Due to the existence of t...

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Abstract

The invention discloses a broadband dielectric resonator antenna, and belongs to the technical field of antennas. The antenna comprises a rectangular grounding metal plate, a cuboid radiation dielectric device which is arranged exactly above the grounding metal plate and provided with slits through etching, and a coaxial probe which penetrates through the center of the grounding metal plate into the radiation dielectric device. Bandwidth of the antenna is increased by etching the cross slit in a dielectric resonator, and gain of the antenna is increased by etching the square slit on the edge of the dielectric resonator. The antenna is simple in structure and relatively high in radiation efficiency.

Description

technical field [0001] The invention belongs to the field of antennas, and in particular relates to a broadband dielectric resonant antenna. Background technique [0002] In recent years, with the development of wireless communication, the research of dielectric resonant antenna has attracted extensive attention. Among the existing antenna types, the dielectric antenna has been widely concerned and applied due to its advantages of easy feeding, small size, high radiation efficiency, and high power capacity. Typically, the bandwidth of dielectric resonant antennas is very narrow, usually less than 10%. However, with the emergence of broadband communication devices, antennas with wide bandwidth characteristics are of great value in use. Therefore, the study of broadband dielectric resonant antenna has practical significance. [0003] At present, a series of studies on the broadband characteristics of dielectric antennas have been carried out at home and abroad and some achi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/36H01Q1/50
Inventor 洪劲松卜婷婷钟垒罗超鸣
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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