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IJSTR >> Volume 8 - Issue 11, November 2019 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Super Wide Band Microstrip Patch Antenna for High Frequency Applications

[Full Text]



Abhinav Bhargava, Poonam Sinha



Super Wideband, fractal micro-strip patch-antenna, return loss, VSWR, radiation pattern



As the research is going on the most of the application of antenna shifting towards the high frequency range, that is important because most of the lower band upto 4GHz is occupied by many applications. The technique in which similar structure developed again and again called fractal antenna. By increasing same structure multiple times the electrical length will enhanced as well as bandwidth may be increased. By fractal many objective excellently achieve. Size reduction also called miniaturization can also achieved by modified fractal approach. This paper represents a unique rectangular patch with defected ground. The meaning of defected is modified or slotted. Three rectangle are added to the top layer of the antenna by which radiation can be enhanced. In this paper combination of fractal and defected ground is used for bandwidth enhancement. In this work bandwidth enhancement is done, simulation is done by HFSS software. Antenna is useful for 3GHz to 14GHz, which represent bandwidth of 11GHz. In this range many wireless application can be shifted. In the given range, VSWR is also achieved less than two, and return loss is also less than -10db. Mathematical analysis is done by considering the center frequency as 4.5GHz and than antenna is analyzed, simulated and optimized to achieve the super wideband. In the proposed design microstrip feed line is used for utilization of its advantages. Practically easily available substrate that is FR4 is used for simulation with the thickness 1.6mm and dielectric constant 4.4.



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