New Researches in Electronic Defense Systems

New Researches in Electronic Defense Systems

Design and fabrication of stretchable dipole antenna for use at 5GHz frequency

Document Type : Original Article

Authors
mehdi zarepour 1
Omid Pakdel Azar 2
payam nejati 3
1 Electrical Engineering Department Amirkabir University of Technology, Tehran, Iran.
2 Electrical Engineering Department,. Malek Ashtar University of Technology, Tehran, Iran.
3 Electrical Engineering Department Malek Ashtar University of Technology, Tehran, Iran
10.22034/joeds.2023.392414.1011
Abstract
This paper presented a reconfigurable dipole antenna for use in wireless communication. The antenna comprises the liquid metal (mercury) injected into the microchannels, by employing soft lithography methods, microfluidic channels are fabricated with Polydimethylsiloxane. The antennas can resist mechanical deformation and return to their original position after the removal of applied stress. The initial length of the antenna is 2cm which can stretch up to 2.4cm. The resonant frequency and radiation patterns in E and H planes can be tuned by increasing the length of the dipole antenna (in COMSOL). To validate the measured antenna, the resonant frequency and radiation patterns are compared with the results of the finite element methods software. Similar results are obtained. This antenna can be used in pressure-based sensors and sensors that can be installed on the body. Compared to other manufactured antennas, this antenna has a better gain at the central frequency of 5 GHz. The innovation of this research is the design and construction of a stretchable antenna with a higher gain than other similar antennas.
Keywords
Stretchable dipole antenna
Microfluidic channel
Mercury Antenna
Resonant frequency
New Researches in Electronic Defense Systems
Volume 2, Issue 2
Winter 2023
Pages 43-48