Vehicle-mounted built-in dual-band dual-circularly-polarized mixed dielectric resonator antenna

A dielectric resonator, dual circular polarization technology, applied in the field of communication, can solve problems such as limited adaptability

Active Publication Date: 2021-04-30
XI AN JIAOTONG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] To sum up, in order to complete the design of the vehicle built-in dielectric antenna, the existing antenna technology can indepe

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  • Vehicle-mounted built-in dual-band dual-circularly-polarized mixed dielectric resonator antenna
  • Vehicle-mounted built-in dual-band dual-circularly-polarized mixed dielectric resonator antenna
  • Vehicle-mounted built-in dual-band dual-circularly-polarized mixed dielectric resonator antenna

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

[0039] The present invention provides a dual-band dual-circular polarization hybrid dielectric resonator antenna for vehicle built-in, including a dielectric resonator, a dielectric substrate 1, a metal ground plane, and a microstrip line 5; the microstrip line 5 is arranged at the bottom of the dielectric substrate In the center, the metal ground plane is set on the surface of the dielectric substrate 1, and a gap 6 is opened in the middle of the metal ground plane, and the gap 6 is perpendicular to the bottom microstrip line 5; the dielectric resonator is arranged directly above the gap 6; the dielectric resonator includes a prism 2. The upper part of the prism 2 is provided with a mixing cylinder 3, the mixing cylinder 3 is a hollow cylinder, the liquid is arranged in the hollow cylinder, and the cylinder of the hollow cylinder is a metal dielec...

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Abstract

The invention provides a vehicle-mounted built-in dual-band dual-circularly-polarized mixed dielectric resonator antenna. The antenna comprises a dielectric resonator, a dielectric substrate, a metal ground plane and a microstrip line, the microstrip line is arranged in the center of the bottom of the dielectric substrate, the metal ground plane is arranged on the surface of the dielectric substrate, and a gap is formed in the center of the metal ground plane and is perpendicular to the bottom microstrip line. The dielectric resonator is arranged right above the gap; the dielectric resonator comprises a prismoid, a mixing cylinder is arranged on the upper portion of the prismoid, the mixing cylinder is a hollow cylinder, liquid is arranged in the hollow cylinder, and the cylinder of the hollow cylinder is a metal dielectric medium. Triangular prism-shaped notches are formed in opposite angles of the upper part and the lower part of the prismoid; double frequency bands are obtained through slot coupling feeding, a basic mode and a high-order mode, the hybrid antenna is realized by adding liquid into a hollow hollow cylindrical part, the high-frequency bandwidth is expanded, the low frequency is hardly influenced, the gain of the antenna is improved after water is added, and the gain is increased when the water is increased at high frequency.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a dual-frequency-band dual-circular-polarization mixed-dielectric resonator antenna built in a vehicle. Background technique [0002] With the development of automotive technology, cars have become an important part of everyday life. As one of the important functional accessories for sending and receiving electromagnetic waves, the car antenna has attracted more and more attention for its high integration and multi-functionality. The traditional vehicle antenna is a whip antenna, which is located outside, which will not only increase the wind resistance of the car during driving, but may also cause damage to the antenna due to external environmental influences. The built-in vehicle antenna can reduce external impact, neither affect the appearance of the vehicle body, nor affect the wind resistance of the vehicle body, but also provide the required signal for th...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50H01Q5/28H01Q5/50H01Q1/32
CPCH01Q1/36H01Q1/48H01Q1/50H01Q5/28H01Q5/50H01Q1/3291
Inventor 刘海文林恺臻黄韬涛叶声张丽娜徐豪
Owner XI AN JIAOTONG UNIV
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