This article shows the design of dielectric resonator antenna with nickel ferrite as dielectric material. Its main characteristics and measurements are described. Nickel ferrite was synthetized by sol–gel modified by ionic coordination reaction technique. Calcination was performed at 1100°C (10 h, 10°C/min step), followed by compression procedure at 227 MPa, to manufacture the bulk. Sintering process was applied at calcination temperature, for 4 h, to ensure bulk's physical resistance, and its electrical characterization was performed for antenna design and simulations. Simulated radiation patterns are presented, as reflection coefficient, which is compared with measurements. Measured reflection coefficient presented good agreement with performed simulations, with a difference of 0.74% in resonance frequency. Simulated radiation patterns also presented good results, with relatively high gain in co‐polarization planes, 2.11 dB for E plane, and low cross‐polarization E plane value, −47 dB.

中文翻译：

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用于C波段应用的镍铁氧体谐振器天线的设计与分析

本文展示了以镍铁氧体为介电材料的介电共振器天线的设计。描述了它的主要特性和测量。通过离子配位反应技术改性的溶胶-凝胶合成了镍铁氧体。在1100℃下进行煅烧（10h，10℃/ min步骤），然后在227MPa下进行压缩程序以制造块料。烧结过程在煅烧温度下进行4 h，以确保块体的物理电阻，并对其电特性进行了天线设计和仿真。给出了模拟辐射方向图，作为反射系数，并与测量值进行了比较。测得的反射系数与执行的仿真结果吻合良好，谐振频率相差0.74％。