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Design and analysis of nickel ferrite resonator antenna for C band applications
Author(s) -
Silva Isaac Barros Tavares,
D'Assunção Adaildo Gomes,
Oliveira João Bosco Lucena,
Holanda Samanta Mesquita,
Cordeiro Carlos Henrique Nascimento
Publication year - 2021
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32821
Subject(s) - materials science , reflection coefficient , ferrite (magnet) , dielectric , resonator , calcination , dielectric resonator antenna , dielectric resonator , microwave , sintering , nickel , polarization (electrochemistry) , temperature coefficient , optics , optoelectronics , composite material , metallurgy , engineering , telecommunications , biochemistry , chemistry , physics , catalysis
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.