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A new four-arm spiral antenna for microwave hyperthermia is presented in this paper. The finite element method was used to simulate the distributions of the electromagnetic fields and the specific absorption rate (SAR) of the four-arm spiral antenna in phantom muscle tissues. The simulation results show heating region of the four-arm spiral antenna can change as the frequency of input excitation....
A new Multi-Pulse Position Modulation (MPPM) system was established. It improves the effect which rain, fog and snow caused to atmosphere laser communication system. Reed-Solomon (RS) encoder/decoder and maximum-likelihood detection were used in the new system. Bit error rate were analyzed when system use RS codes. The simulation results show that bit error rate of RS codes system decreases obviously...
The finite element method was used to simulate the distributions of the electromagnetic fields and the specific absorption rate (SAR) of the microstrip spiral antenna in phantom muscle tissues. The factors that affect the antenna performance are compared. These factors include spiral wire's width, space of adjacent spiral circle and circle numbers. A new microwave hyperthermia antenna which is not...
A new microwave hyperthermia antenna that isn't sensitive to neither its parameters nor fluctuation of the inputting frequency is presented in this paper. The finite element method was used to simulate the distributions of the electromagnetic fields and the specific absorption rate (SAR) of the Archimedes planar spiral antenna in phantom muscle tissues. The factors that affect the antenna performance...
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