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In present days patch antennas became more important in microwave communications because of their low cost, low weight and easy of fabrication but one disadvantage is narrow bandwidth. Similarly PIFA antennas became more important in mobile communications due to there are small in size and the foldable PIFA antennas are also available in market. Here an antenna with high dielectric constant i.e 10...
In this paper, A Conformal finite-difference time domain (CFDTD) method using a conformal overlapping grid concept is explained. A circular micro-strip patch antenna is used as object to explain the CFDTD concept. The code is developed using MATLAB and corresponding results are explained and corresponding results compared with results produced from ADS Momentum tool. In this grid overlapping case...
This paper proposes a computationally efficient explicit finite difference time domain (FDTD) scheme for the TEz mode. In contrary to conventional FDTD method, we derive the finite difference of magnetic field using asymmetric approximation to the second order wave equation. The resultant implicit magnetic field equations are coupled in groups of two adjacent points of the computational domain to...
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