Reconfigurable Antenna using Micromechanical Actuation Switches for K and Ku-Band Applications
Sathuluri Mallikharjuna Rao1, G. Sasikala2

1ASathuluri Mallikharjuna Rao, Research Scholar, Department of ECE, Vel Tech University, & Assistant Professor, Dept. of ECE, Andhra Loyola Institute of Engineering and Technology, Andhra Pradesh, India.
2Dr.G Sasikala, Professor, Department of ECE, Vel Tech University, 400 feet outer ring road, Avadi, Chennai-, Tamilnadu, India.
Manuscript received on November 29, 2019. | Revised Manuscript received on December 15, 2019. | Manuscript published on December 30, 2019. | PP: 201-205 | Volume-9 Issue-2, December, 2019. | Retrieval Number: B2665129219/2019©BEIESP | DOI: 10.35940/ijeat.B2665.129219
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Abstract: In this paper, we have proposed a reconfigurable antenna using micro mechanical actuation switches for K and Ku-band applications. Overall two identical cantilever micro mechanical switches (S1 & S2 ) are used to design reconfigurable patch antenna. The switches are working by electrostatic actuation mechanism. With the switches, overall the antenna is offering four resonant frequencies based on the switches ON/OFF condition. The Micro mechanical switches are offering an isolation loss of -18.5dB and an insertion loss of -1dB. The switch requires a DC actuation voltages of 6V. The Proposed reconfigurable antenna is resonating at four different frequencies based on the different switching conditions of RF MEMS switches. If S1 & S2 both are ON the antenna is resonating at 16.9GHZ, if S1 -ON & S2 -OFF the antenna is resonating at 47.3GHZ & 59.1GHZ, if S1 -OFF & S2 -ON the antenna is resonating at 28.4GHZ, if S1 -OFF & S2 -OFF the antenna is resonating at 27.9GHZ.
Keywords: Patch antenna, re-configurability, RF MEMS switch, PIN diode, FET, Polarization, bandwidth, gain, directivity.