Coplanar waveguide feeding-based miniaturized wideband dielectric resonator antenna

A dielectric resonator and coplanar waveguide technology, applied in the field of antennas, can solve the problems of reducing the bandwidth of the antenna, and achieve the effect of reducing the section height, significant impedance bandwidth expansion advantages, and simple form

Inactive Publication Date: 2016-11-02
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the dielectric resonator with high dielectric constant can realize the miniaturization of the antenna, but at the same time, the bandwidth of the antenna will be reduced. How to obtain an antenna with small size and broadband characteristics still needs to be studied

Method used

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  • Coplanar waveguide feeding-based miniaturized wideband dielectric resonator antenna
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  • Coplanar waveguide feeding-based miniaturized wideband dielectric resonator antenna

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Embodiment Construction

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0016] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...

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Abstract

The invention discloses a coplanar waveguide feeding-based miniaturized wideband dielectric resonator antenna. The coplanar waveguide feeding-based miniaturized wideband dielectric resonator antenna comprises a dielectric substrate, a coplanar waveguide and an annular dielectric resonator; the coplanar waveguide includes a grounding plate, a radiation patch and a feeding part; the feeding part comprises an annular patch and central strip lines; the grounding plate includes two parts, wherein the two parts are of symmetrical structure relative to the central strip lines; two symmetrical L-shaped notches and two symmetrical rectangular notches are formed in the grounding plate; the radiation patch is composed of four 1/4 circular patches which are symmetrical to each other in pairs; and the annular dielectric resonator is located just at the center of the annular patch. According to the coplanar waveguide feeding-based miniaturized wide-band dielectric resonator antenna of the invention, a coplanar waveguide feeding annular printed monopole antenna and dielectric resonator antenna-hybrid radiation mechanism is adopted; and a plurality of working modes of the resonator can be excited; and therefore, bandwidth can be expanded. The coplanar waveguide feeding-based miniaturized wide-band dielectric resonator antenna has excellent impedance matching performance, high radiation efficiency and high peak gain. The coplanar waveguide feeding-based miniaturized wide-band dielectric resonator antenna has broadband work performance with small size ensured.

Description

technical field [0001] The invention relates to an antenna, in particular to a miniaturized broadband dielectric resonator antenna based on coplanar waveguide feeding. Background technique [0002] At present, with the rapid development of microwave circuits, miniaturization, high efficiency, and broadband have become the development trend of antennas. Therefore, realizing the miniaturization and broadband of antennas has become an important content of antenna design. Many applications, such as digital broadcasting, video conferencing, satellite communications, wireless and radar, require relatively wide bandwidth. However, in previous designs, to achieve the miniaturization of the antenna, its bandwidth must be sacrificed. With the development of wireless communication technology, researchers have been trying to design antennas with small size and broadband characteristics, and the dielectric resonator antenna is undoubtedly a good choice. Compared with the traditional an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50
Inventor 郝宏刚黄代利尹波李佳玉阮巍
Owner CHONGQING UNIV OF POSTS & TELECOMM
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