Design of Reconfigurable Antenna Using MSF-EBG Structure to Improve Performance Parameters

Abstract

A wide band gap slot fractal uniplanar compact electromagnetic band gap (UC-EBG) structure is designed based on the third iteration of Moore space filling geometry (MSF-UC-EBG). By changing the dimensions of the EBG structure, different band gap characteristics can be obtained. This structure (named as FR4_EBG) is simulated using Computer Simulation Technology, fabricated and measured. Furthermore, the FR4_EBGs are integrated with a coplanar waveguide fed stepped-impedance resonator (SIR) antenna to research MSF-UC-EBG’s microwave application. After integration, the overall performance of SIR antenna is significantly improved. The proposed MSF-UC-EBG can be easily integrated with low-frequency applications such as GSM, PCS, Bluetooth, Wi-max, and Wi-Fi. Simulated results of the reconfigurable antenna by using switch (P-I-N diode or RF-MEMS) are also observed. This antenna operates for two different frequencies, 1.568 GHz when the switch is open and 2.5 GHz when the switch is closed.

KEYWORDS:

• Coplanar waveguide
• Electromagnetic band gap structure
• Fractal
• Moore space filling geometry
• Reconfigurable antenna
• RF-MEMS

ACKNOWLEDGEMENT

The results of fabricated antenna are carried out in the Department of CARE, IIT Delhi. I would like to thank Dr Mahesh Abegaonkar, Professor, Department of CARE, IIT Delhi for his valuable guidance and availing the laboratory for testing antenna.

In this paper, I have referred Figure 1, which is similar to Figure 1 in paper [12] but not exactly the same. I have referred this figure to explain the concept of the Hilbert curve. Also, Figure 2 is referred to explain how the Hilbert curve can be modified to the Moore curve with three iterations. Figure 3 is the same as Figure 2 of paper [12] to explain how using the Moore Space Filling Curve, one cell of FR4_EBG can be designed.

Additional information

Notes on contributors

Manasi Shrikant Kanitkar

Manasi Shrikant Kanitkar received BE degree in electronics from Dr D Y Patil College of Engineering, Pune, Maharashtra, India, in 1997 and MTech in electronics and telecommunication from Dr BATU, Lonere Dist. Raigadh, Maharashtra, India, in 2006. She is working as an assistant professor in Progressive Education Society’s Modern College of Engineering, Shivajinagar, Pune, Maharashtra, India. Currently, she is pursuing PhD at Research Center, PES’s Modern College of Engineering, Pune. Her field of interest include microstrip reconfigurable antenna, antenna with electromagnetic band gap structure. Corresponding author. Email: [email protected]

Shankar Baburao Deosarkar

Shankar Baburao Deosarkar received BE degree in electronics from Amaravati University, Maharashtra, India, and ME as well PhD in electronics from SGGS College of Engineering and Technology, Nanded, Maharashtra. His field of interest is in EMI/EMC, wireless communication, micro strip antenna design and optical communication. His research publications in the national and international journals are 37 and research publications at the national and international conferences are 63. Currently, he is working as a professor, Electronics and Telecommunication Engineering, Dr Babasaheb Ambedkar Technological University, Lonere, Raigad. Email: [email protected]