Abstract
This paper proposes a new design of Planar Inverted-F Antenna with complementary split ring resonators (CSRRs). The operating frequency of this antenna is 2.425 GHz for Wireless Local Area Network (WLAN) application. The method is to incorporate a single CSRR cell and a periodic array CSRRs on the radiating patch. We studied the effect of this method on the characteristics of antenna in free space and in the presence of the user. We used a homogeneous model of a human head near our antenna. The parameters that considered in these works are gain, electric field, magnetic field, return loss, radiation pattern, power loss density and Specific Absorption Rate. The addition of CSRRs on to PIFA antenna will improve the gain from 4.76 dB to 4.81 dB and will reduce the Specific Absorption Rate from 3.57 W/kg to 2.95 W/kg.
Highlights
Wireless communications have progressed very rapidly in recent years, and researchers began working on miniaturization and improved antennas and reduce the value of the specific absorption rate
The EM absorption in the human head from the radiated antenna on a mobile phone is measured in terms of the specific absorption rate (SAR), which is defined as the power absorbed by a unit mass of body tissue [1]
From the simulation results we noticed at firstly moment the number of complementary split ring resonators (CSRRs) elements is inversely proportional to the resonant frequency, as indicated by the variation curve of the return loss shown in Fig
Summary
Wireless communications have progressed very rapidly in recent years, and researchers began working on miniaturization and improved antennas and reduce the value of the specific absorption rate. The methods of improvement and miniaturization of antennas have appeared ago the evolution of communications technology [5] In the literature, these methods are divided into three classes. A new approach of a complementary split ring resonator (CSRR) PIFA antenna is introduced to reduce the SAR in the human head and the size of PIFA antenna. This manuscript is divided into three parts, the first part is devoted to the presentation of the antenna characteristics. We finished with a demonstration to confirm our results
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