Integrated Devices for Artificial Intelligence and VLSI

10Performance Evaluation of Prototype Microstrip Patch Antenna Fabrication Using Microwave Dielectric Ceramic Nanocomposite Materials for X-Band Applications

Srilali Siragam

Department of Electronics & Communication Engineering, Swarnandhra College of Engineering and Technology, Seetharamapuram, Narsapur, A.P., India

Abstract

This chapter presents the production and characterization of a sol-gel composite nanoparticle composed of titanium dioxide (TiO₂) and zinc aluminate (ZnAl₂O₄) as a prototype microstrip patch antenna. Initially, the molecular composition was used with the chemical formula xTiO₂(1-x) ZnAl₂O₄ and defined as 0.08TiO₂ for x = 8%. X-ray diffraction (XRD) was used to investigate the generated composite nanoparticles, which indicated the dominating peaks of ZnAl₂O₄ and TiO₂. The crystallite size of the nanoparticles was calculated to be 16.9 nm. Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FESEM), and energy dispersive spectroscopy (EDS) were also used to evaluate the functional groups, shape, and elemental content of the composite nanoparticles. These nanoparticles were also used to fabricate a prototype patch antenna in order to test its performance. Finally, a fabricated patch antenna was suitable for the X-band applications with the operating frequency 8.49 GHz, return loss (RL) -19.97 dB and VSWR<2.

Keywords: ZnAl₂O₄, microstrip patch antenna, VSWR, return loss, X-band

10.1 Introduction

Because of their unique ...