Wide beam dielectric resonator antenna

A dielectric resonator and wide-beam technology, which is applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of low radiation efficiency of metal wide-beam antennas and narrow beam width of dielectric resonator antennas, and achieve changes in radiation field, widening the E-plane beamwidth, and widening the effect of the H-plane beamwidth

CN110247186AActive Publication Date: 2019-09-17XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-09-17

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Abstract

The invention provides a wide beam dielectric resonator antenna, comprising a dielectric substrate, a metal floor, a microstrip feed line printed on a lower surface of the dielectric substrate, a rectangular dielectric resonator disposed on an upper surface of the metal floor, and four rectangular dielectric sheets. The metal floor is composed of a first metal floor and two identical second metal floors. The upper surface of the dielectric substrate is printed with a first metal floor, and two sides are respectively provided with two identical second metal floors. The four rectangular dielectric sheets are composed of two first rectangular dielectric sheets of the same structure and two second rectangular dielectric sheets of the same structure. The two first rectangular dielectric sheets of the same structure and the second rectangular dielectric sheets of the same structure are respectively attached to the upper and lower portions of the rectangular dielectric resonators on two opposite sides along the x-direction. The invention solves the technical problem that the dielectric resonator antenna beam is narrow, and can be used in wireless communication systems such as a satellite positioning navigation system and an intelligent transportation system.
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Description

technical field

[0001] The invention belongs to the technical field of antennas, and in particular relates to a wide-beam dielectric resonator antenna, which can be used in wireless communication systems such as satellite positioning and navigation and intelligent transportation systems. Background technique

[0002] With the rapid development of wireless communication, traditional single-function antennas can no longer meet the increasingly complex and diverse requirements of wireless communication systems. Many wireless applications today have requirements for the signal coverage of the antenna. The wide beam characteristic of the antenna provides a large signal coverage, which plays a very critical role in a specific application environment. In the fields of satellite navigation, communication and radio frequency identification, it is often necessary to consider the beam width of the antenna. For example, in maritime applications, in order to overcome the instability of t...

Examples

Embodiment 1

[0031] refer to figure 1 , figure 2 , image 3 and Figure 4

[0032] A wide-beam dielectric resonator antenna, including a dielectric substrate 1, a metal floor 2, a microstrip feeder 3 printed on the lower surface of the dielectric substrate 1, a rectangular dielectric resonator 4 arranged on the upper surface of the metal floor 2, and four rectangular dielectric Sheet 5, the metal floor 2 is composed of a first metal floor 21 and two identical second metal floors 22, the upper surface of the dielectric substrate 1 is printed with the first metal floor 21, and the two sides are respectively provided with Two identical second metal floors 22, the center of the first metal floor 21 is etched with a rectangular slit 211, and the four rectangular dielectric sheets 5 are composed of two first rectangular dielectric sheets 51 of the same structure and two first rectangular dielectric sheets 51 of the same structure The second rectangular dielectric sheet 52 is composed of the...

Embodiment 2

[0043] The four rectangular dielectric sheets 5 adopt a dielectric material with a relative permittivity εr2 of 47, and the thickness is expressed as D, and D is 0.5mm-1.5mm. The length of the cross-sectional rectangle is expressed as A, and A is 20mm-30mm. Wherein, the width of the cross-sectional rectangle of the first rectangular dielectric sheet 51 is denoted as H1, and H1 is 10mm-20mm, and the width of the cross-sectional rectangle of the second rectangular dielectric sheet 52 is denoted as H2, and H2 is 5mm-10mm. In the present invention, D=0.5mm, A=20mm, H1=10mm, H2=5mm.

[0044] The rectangular dielectric resonator 4 adopts a dielectric material with a relative permittivity εr1 of 9.5, its height is expressed as H, and H is 30mm-40mm, and the side length of the cross section is equal to the length A of the cross section of the four rectangular dielectric sheets 5 . In the present invention, H=30mm.

[0045] The rectangular dielectric resonators 4 are located at the ce...

Embodiment 3

[0051] The four rectangular dielectric sheets 5 adopt a dielectric material with a relative permittivity εr2 of 47, and the thickness is expressed as D, and D is 0.5mm-1.5mm. The length of the cross-sectional rectangle is expressed as A, and A is 20mm-30mm. Wherein, the width of the cross-sectional rectangle of the first rectangular dielectric sheet 51 is denoted as H1, and H1 is 10mm-20mm, and the width of the cross-sectional rectangle of the second rectangular dielectric sheet 52 is denoted as H2, and H2 is 5mm-10mm. In the present invention, D=1.5mm, A=30mm, H1=20mm, H2=10mm.

[0052] The rectangular dielectric resonator 4 adopts a dielectric material with a relative permittivity εr1 of 9.5, its height is expressed as H, and H is 30mm-40mm, and the side length of the cross section is equal to the length A of the cross section of the four rectangular dielectric sheets 5 . In the present invention, H=40mm.

[0053] The rectangular dielectric resonators 4 are located at the c...