Frequency Reconfigurable RF MEMS for Ka Band Applications

Koushik Basak*, R.K. Bahl**, Dhaval Pujara***
Scientist, Optical Communication Division (OCD), SNPA, Space Applications Centre, ISRO, Ahmedabad, India.
Professor, Department of Electronics and Communication Engineering, Institute of Technology, Nirma University, Ahmedabad, India.
Periodicity:December - February'2018
DOI : https://doi.org/10.26634/jele.8.2.14134

Abstract

This paper presents design of a microstrip patch antenna with cantilever type MEMS switch to achieve reconfigurability. The primary and secondary radiators are connected by a cantilever MEMS switch. Normally, the MEMS switches are fabricated over high resistive material whereas planar radiator is designed on low dielectric substrate. Lateral etching based micromachining of Si substrate is proposed in the design to enhance its performance by accommodating a MEMS switch on it. In order to visualize the effect of bandwidth (BW) with respect to the depth of etching, a parametric study was carried out. The simulation results validate the reconfigurability of the design by observing shifts in resonance frequency of 600 MHz by changing the state of MEMS switch.

Keywords

MEMS, Reconfigurable Patch Antenna, Antenna Radiation Pattern.

How to Cite this Article?

Basak. K., Bahl. R. K and Pujara.D (2018). Frequency Reconfigurable RF Mems for Ka Band Applications. i-manager's Journal on Electronics Engineering, 8(2), 6-11. https://doi.org/10.26634/jele.8.2.14134

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