Design of dual band wearable antenna using metamaterials.
This paper presents two types of dual band (2.4 and 5.8 GHz) wearable planar dipole antennas, one printed on a conventional substrate and the other on a two-dimensional metamaterial surface (Electromagnetic Bandgap (EBG) structure). The operation of both antennas is investigated and compared under different bending conditions (in E and H-planes) around human arm and leg of different radii. A dual band, Electromagnetic Band Gap (EBG) structure on a wearable substrate is used as a high impedance surface to control the Specific Absorption Rate (SAR) as well as to improve the antenna gain up to 4.45 dBi. The EBG inspired antenna has reduced the SAR effects on human body to a safe level (< 2W/Kg). I.e. the SAR is reduced by 83.3% for lower band and 92.8% for higher band as compared to the conventional antenna. The proposed antenna can be used for wearable applications with least health hazard to human body in Industrial, Scientific and Medical (ISM) band (2.4 GHz, 5.2 GHz) applications. The antennas on human body are simulated and analyzed in CST Microwave Studio (CST MWS).
Adeel
A
Afridi
Sadiq
S
Ullah
Shahbaz
S
Khan
Aziz
A
Ahmed
Akhtar Hussain
AH
Khalil
Munir Ahmad
MA
Tarar
D001822:Body Burden; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008420:Manufactured Materials / Q000032:analysis*; D008872:Microwaves; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D011829:Radiation Dosage; D014159:Transducers; D059015:Wireless Technology / Q000295:instrumentation*