Performance comparison of micromachined antennas optimized at 5 GHZ for RF energy harvester

Noor Hidayah Mohd Yunus, Jahariah Sampe, Jumril Yunas, Alipah Pawi, Mohd Izam Abd Jalil

Research output: Contribution to journalArticle

Abstract

This paper presents a comparative performance of the antennas fabricated using micromachining process. The research aims to discover the best antenna performance by alternative micromachining modes for integrating with the RF harvester printed circuit. Here, the study on micromachining process method involves the simulation study of three different structures and materials, such as silicon (Si) with air gap, Si surface and glass surface based antenna. These antennas have been modelled and optimized operating at 5 GHz by CST-MWS. The outcomes validate good characteristic of glass based surface micromachined antenna over the Si based micromachined antenna. The results show that the Si surface micromachined antenna is not able to reach the requirement for RF antenna specification, however, it is improved by creating the air cavity. Furthermore, the use of glass substrate has increased the antenna gain by 5.34% and the-10 dB bandwidth increased by 72.86% compared to the Si with air cavity. The glass based antenna dimension is reduced by 9.09% and 44.93% compared to Si bulk micromachined and Si surface micromachined antenna, respectively. Thus, the characteristics of the glass surface micromachined antenna are relatively appropriate for highly efficient RF energy harvester application.

Original languageEnglish
Pages (from-to)258-265
Number of pages8
JournalIndonesian Journal of Electrical Engineering and Computer Science
Volume15
Issue number1
DOIs
Publication statusPublished - 1 Jul 2019

Fingerprint

Harvesters
Performance Comparison
Antenna
Antennas
Energy
Silicon
Micromachining
Glass
Cavity
Air
Printed circuits
Substrate
Bandwidth
Simulation Study

Keywords

  • Borosilicate glass
  • Micromachining technique
  • RF energy harvesting
  • Sensor device
  • Silicon

ASJC Scopus subject areas

  • Signal Processing
  • Information Systems
  • Hardware and Architecture
  • Computer Networks and Communications
  • Control and Optimization
  • Electrical and Electronic Engineering

Cite this

Performance comparison of micromachined antennas optimized at 5 GHZ for RF energy harvester. / Yunus, Noor Hidayah Mohd; Sampe, Jahariah; Yunas, Jumril; Pawi, Alipah; Jalil, Mohd Izam Abd.

In: Indonesian Journal of Electrical Engineering and Computer Science, Vol. 15, No. 1, 01.07.2019, p. 258-265.

Research output: Contribution to journalArticle

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