Abstract
There are very important questions. “Do Electromagnetic waves have irreparable effects on human or not?” “Are there any relation between cancer and waves?” and finally “what should we do to be safe?”. In the present article, these questions will be answered simply and professionally. First of all, Specific Absorption rate (SAR) is define then L-Slot and U-slot antenna is designed and simulated using cell-phones and wearable applications, operating at and consist of GSM900 and GSM1800. Standard frequency band width for the first and second band is and for uplink and downlink and in the present research these numbers are obtained. The SAR of each antenna is measured and is compared with each other. Thanks to design of antenna, The SAR of U-Slot antenna is very low and it is almost stimulated and this sentence means this antenna is anti-cancer. Finally, Some SRR unit-cells are designed and when they are used in structure, SAR will be more decrease. Last SAR value is and for each bands .In the last table, There are some comparison between different creditable references and present article SAR reduction is acceptable and it is near to percentage.
Highlights
PIFA antenna was invented many years ago and it has been using since times ago
This type of antenna has many advantages like: small size, low cost, simple structure and this antenna is low Specific Absorption rate (SAR) antenna and this sentence means this antenna is very low noisome, but there are some disadvantages for PIFA antenna like: low B.W. and mono-band antenna
First there are some information about electromagnetic waves and cancer and there are some useful methods to reduce the probability of cancer
Summary
PIFA antenna was invented many years ago and it has been using since times ago. In 2002 other group of scientists invited to national T.V. in Australia and declared that there is no lymphoma effect on mice when they are remained at 900MHz electromagnetic wave for a long time and the second group of scientist publishes lots of article about this subject [1]. This program were accosted with lots of protests.
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