Design of Mimo Antenna for Wlan/Wimax Applications
D. Sivakumar1, J. Sri Arunaa2, T N Suresh Babu3

1D. Sivakumar, Professor, Department of ECE, Easwari Engineering College, Chennai (Tamil Nadu), India.
2J. Sri Arunaa, Student, Department of ECE, Easwari Engineering College, Chennai (Tamil Nadu), India.
3T N Suresh Babu, Assistant Professor, Department of ECE, Adhiparasakthi Engineering College, Melmaruvathur (Tamil Nadu), India.
Manuscript received on 07 May 2019 | Revised Manuscript received on 19 May 2019 | Manuscript Published on 23 May 2019 | PP: 1031-1036 | Volume-7 Issue-6S5 April 2019 | Retrieval Number: F11770476S519/2019©BEIESP
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Abstract: In the field of wireless communication multiple antennas are gaining increased interests due to their increase in capacity and data transmission compared to that of single antennas. A three element multiple input multiple output (MIMO) antenna model operating in three frequency bands is presented in this paper. The antenna consists of three different patches in the frequency range of 2.4GHz, 3.3GHz and 5.5GHz on a single substrate which is made up of “FR4_epoxy” material. The antenna is designed with the size of about (100 mm x 90 mm) and thickness of 1.6mm. The simulation results are obtained with the help of High Frequency Structure Simulator software (HFSS). In order to improve the performance of the antenna an additional technique known as artificial magnetic conductor (AMC) is introduced. The antenna model consists of another substrate with the air gap of about 1mm between both the substrates and the amc unit cells of different size (5 mm x 5 mm) and (4 mm x 4 mm) are induced in the substrate. Simulation results show it has good operation over the frequency bands of 2.4GHz, (3.3-3.5GHz) and (5.3-5.5GHz) which can be used for WLAN/ WiMAX applications.
Keywords: Artificial Magnetic Conductor (AMC), High Frequency Structure Simulator (HFSS), Multiple Input Multiple Output Antenna (MIMO), WLAN/WiMAX.
Scope of the Article: Microstrip Antenna Design and Application