Unidirectional Dielectric Resonator Antenna Using 3-D-Printed Uniaxial Anisotropic Ceramic

IF 1.1 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Iet Microwaves Antennas & Propagation Pub Date : 2025-04-17 DOI:10.1049/mia2.70019

Carlos David Morales Peña, Audric Boiteau, Christophe Morlaas, Alexandre Chabory, Romain Pascaud, Marjorie Grzeskowiak, Gautier Mazingue

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Abstract

A Huygens source dielectric resonator antenna (DRA) with unidirectional radiation pattern is presented. It consists of a coaxial probe exciting a rectangular, homogeneous and uniaxial anisotropic dielectric resonator (DR). To obtain a Huygens source radiation pattern, a pair of quasi-TM and TE modes are combined by controlling the permittivity tensor of the DR. A prototype operating at 2.5 GHz has been designed. The DR is made up of periodic anisotropic unit cells on a subwavelength scale and fabricated using a three-dimensional (3-D) printer. The simulated and measured results are in reasonable agreement. A relative impedance bandwidth of $12.5 %$ and a front-to-back ratio larger than 15 dB at operating frequency are finally measured.

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三维打印单轴各向异性陶瓷单向介质谐振器天线

提出了一种单向辐射方向图的惠更斯源介质谐振器天线。它由一个同轴探头激励一个矩形、均匀和单轴各向异性介质谐振器（DR）组成。为了获得惠更斯源的辐射图，通过控制dr的介电常数张量，将一对准tm和TE模式组合在一起，设计了工作在2.5 GHz的样机。DR由亚波长尺度上的周期性各向异性单元细胞组成，并使用三维打印机制造。仿真结果与实测结果基本吻合。在工作频率下，测量到的相对阻抗带宽为12.5%，前后比大于15db。

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来源期刊

Iet Microwaves Antennas & Propagation 工程技术-电信学

CiteScore

4.30

自引率

5.90%

发文量

109

审稿时长

7 months

期刊介绍： Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf