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The use of flexible materials such as textile, vinyl and flexible polymer as a substrate for designing wearable antenna are becoming very popular. As the antennas are easily exposed to mechanical deformation while being worn by users, the necessity to measure and analyze the effect of the antenna deformation towards the antenna performance and electromagnetic (EM) energy absorbed by the body are increasing...
This paper evaluates the interaction between the human body and dipole antenna in the presence of conductive medical implant. A Voxel body model is exposed to the radiation source at three different frequencies; 0.9 GHz, 1.8 GHz and 2.4 GHz. A conductive bone plate is implanted inside the Voxel body in order to investigate the effect of medical implant on the Specific Absorption Rate (SAR). Results...
This research identifies and evaluates the effect of human body and conductive metallic objects in the vicinity of radiation source on Specific Absorption Rate (SAR). The presence of electronic devices in the vicinity of human body especially close to the human sensitive part especially when the antenna is left inside the trousers pocket could allow the radiated electromagnetic wave to penetrate inside...
In this paper, the interaction between a single band textile dipole antenna with human body is examined under several bending conditions. The numerical simulations of the single band 0.9 GHz patch dipole antenna are performed by using Computer Simulation Technology (CST) Microwave Studio. The Finite Integration Technique (FIT) method is utilized to determine the antenna performance. Results have clearly...
This paper discusses the simulation and measurement results of Specific Absorption Rate (SAR) due to the presence of common metallic items close to the radiation source. Numerical simulations are performed by using Finite Integration Technique (FIT). A heterogeneous Voxel body model is used in the simulation and has been exposed to a simple λ/2 dipole antenna at three different frequencies; 0.9, 1...
This paper discusses the performance and SAR of dipole textile antenna under different crumpling conditions in the presence of human body close to the radiation source. The numerical simulations of the realistic complex two dimensional crumpling is performed by using Finite Integration Technique (FIT) which is applied in Computer Simulation Technology (CST) Microwave Studio. A realistic heterogeneous...
In this paper, the interaction between a single band textile antenna with human body is examined. The simulations are performed by means of CST Microwave Studio with a single band 2.4 GHz patch dipole antenna as the radiating source. The effects of bending and different distances from the body are also considered in this study. Results have clearly indicated that the human body has notably shifts...
This research quantifies the effect of homogeneous and inhomogeneous body model on Specific Absorption Rate (SAR). Quarter wave monopole antenna is used as the excitation source at 2.4 GHz. The simulation results are calculated by means of CST Microwave Studio based on Finite Integration Technique (FIT). Male Voxel model is modelled as an inhomogeneous and homogeneous models and filled with standard...
Wearable textile antennas are supposed to be integrated within the clothing or secured on the body. Therefore, the placement of the antennas and their orientation need to be carefully determined. In this paper, the interaction between a single band dipole textile antenna for wireless off-body communication applications with human body is examined. The simulations are performed by means of CST Microwave...
This paper presented a printed dipole with slot Electromagnetic Band Gap (EBG) that has both Artificial Magnetic Conductor (AMC) and band-notched performances. Compared to a reference square patch EBG, printed dipole with slot EBG exhibits band-notched behaviour at the out-of-band frequency with 10dB maximum suppression. The antenna maintains a peak gain of 8dB at 2.4GHz resonance due to High Impedance...
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