Design of An Efficient Microstrip Patch Antenna With Reduced Specific Absorption Rates (SAR)

Arul Jenshiya P. R.*, Madhan Kumar K.**, Riyaz Fathima H.***
*_***Department of Electronics and Communication Engineering, PET Engineering college,Tamil Nadu, India.
Periodicity:November - January'2019


Nowadays, the demand for compact, high, wide bandwidth and, a low-cost antenna has increased rapidly. An antenna is a transducer that converts electrical signals to EM waves and radiates into space. The antenna performance can be measured by gain, return loss, VSWR etc. Antennas are classified into several types but the microstrip patch antennas are mostly used for several specific applications because of its low profile, lightweight, low cost, feed-line flexibility, versatility, ease of fabrication etc. Even though it has several advantages, it suffers from major drawbacks namely narrow bandwidth, low gain, high return loss. In order to overcome the above mentioned drawbacks, FR-4 materials are used. Specific absorption rate (SAR) is a measurement that describes the radiation level absorbed by the human body or tissue when placed at RF field. It is defined as the power absorbed per mass of tissue and has units of watt per kilogram. SAR is measured either with the complete body or over a small sample volume (1g or 10g of tissue). The antenna performance can be evaluated in terms of gain, VSWR and the return loss were calculated for the proposed antenna and the proposed antenna provides the peak the gain of 4.51dB at 10.846GHz and also the SAR value of 0.00117W/Kg are evaluated for 1g of tissue for the proposed antenna. The human phantom model and the proposed antennas are designed using CST (Computer Simulation Technology) microwave Studio Tool.


Gain, VSWR, return loss, SAR

How to Cite this Article?

Jenshiya, A. P. R., Kumar, M. K., & Fathima, R. H. (2019). Design of An Efficient Microstrip Patch Antenna With Reduced Specific Absorption Rates (SAR). i-manager's Journal on Communication Engineering and Systems, 8(1), 11-18.


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