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Wideband Reconfigurable Dielectric Resonator Antenna

A dielectric resonator and antenna technology, applied in the microwave field, can solve problems such as low radiation efficiency, large feed network, and complex loss

Active Publication Date: 2019-12-31
NANTONG RES INST FOR ADVANCED COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) The operating bandwidth of the microstrip antenna is narrow due to its own characteristics;
[0006] 2) Low radiation efficiency due to the use of a complex and high-loss feed network

Method used

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  • Wideband Reconfigurable Dielectric Resonator Antenna
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  • Wideband Reconfigurable Dielectric Resonator Antenna

Examples

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Embodiment 1

[0048] Please refer to figure 1 and figure 2 , the embodiment of the present invention provides a broadband reconfigurable dielectric resonator antenna, including: a dielectric substrate 1 and a dielectric resonator 2 arranged at the center of the antenna; the circuit is mainly arranged on the first surface 101 of the dielectric substrate 1 and on the second surface 102 opposite to the first surface 101 .

[0049] (1) Circuit structure of the first surface 101 of the dielectric substrate 1

[0050] Please refer to figure 1 and image 3 , the first surface 101 of the dielectric substrate 1 is provided with a metal formation 11;

[0051] An intersecting slot structure 3 is etched on the metal formation 11; the intersecting slot structure 3 is composed of first intersecting grooves 31 and second intersecting grooves 32 of the same size vertically intersecting;

[0052] The dielectric resonator 2 is arranged close to the first surface 101, and is located directly above the i...

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Abstract

The invention discloses a broadband reconfigurable dielectric resonator antenna, which solves the problems in the prior art that the dielectric resonator antennas lack polarization reconfigurable designs and that the majority of polarization reconfigurable designs based on microstrip antennas have narrow working bandwidths and low radiation efficiency and the like. The antenna mainly comprises: adielectric substrate (1) and a dielectric resonator (2); an upper surface (101) of the dielectric substrate (1) is provided with a metal ground layer (11) and is etched with a cross seam structure (3); metallized through hole pairs (41-44) are arranged beside the cross seam structure (3); a lower surface (102) of the dielectric substrate (1) is provided with diodes (D2-D4) for controlling the on-off of the metallized through hole pairs (41-44); and the antenna is further provided with a microstrip line feed structure (13) comprising a diode (D5) and a DC bias circuit connected to the diodes (D1-D5) correspondingly. The antenna is convenient to design and is simple in structure, and due to the advantages of low cost, large bandwidth and high gain and the like, the antenna is suitable for multifunctional wireless communication applications.

Description

technical field [0001] The invention relates to the field of microwave technology, in particular to a broadband reconfigurable dielectric resonator antenna. Background technique [0002] In recent years, with the development of wireless communication systems in the direction of high integration and multi-functionality, antennas, as the key components for receiving or sending signals in wireless communication systems, have gradually become a research hotspot in the field of antennas for their multi-functionality and tunability. Due to the above characteristics, reconfigurable antennas have gradually shown great application potential. Its excellent electrical characteristics, such as frequency tunable, polarization or pattern reconfigurable, etc., can well meet the requirements of highly integrated antennas. Multifunctional wireless communication system needs. [0003] Dielectric Resonator Antenna (DRA, Dielectric Resonator Antenna) is very suitable for the design of reconfig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/48H01Q13/08
CPCH01Q1/48H01Q1/50H01Q13/08
Inventor 杨汶汶董星妤陈建新
Owner NANTONG RES INST FOR ADVANCED COMM TECH CO LTD
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