论文信息 - Multi-mode FDTD simulations of indoor propagation including antenna properties

Multi-mode FDTD simulations of indoor propagation including antenna properties

Two dimensional finite difference timed domain (FDTD) methods have previously been used for indoor propagation calculations. The paper presents an extension to permit 2 1/2 dimensional multi-mode simulations obtained by separation of the 3D YEE-FDTD-scheme. One of the benefits of this technique is its capability to take into account properties of arbitrary antennas. The method itself is derived and the underlying antenna model is explained. Results are presented and compared to those of measurements. The influence of antenna properties (such wire length and thickness of a dipole antenna) on the channel impulse response is shown in some practical simulation examples.

[1] D. Katz,et al. Validation and extension to three dimensions of the Berenger PML absorbing boundary condition for FD-TD meshes , 1994, IEEE Microwave and Guided Wave Letters.

[2] R. Gahleitner,et al. A ray splitting model for indoor radio propagation associated with complex geometries , 1993, IEEE 43rd Vehicular Technology Conference.

[3] Y. E. Lu. Site precise radio wave propagation simulations by time domain finite difference methods , 1993, IEEE 43rd Vehicular Technology Conference.

[4] Zhang Xiaolei,et al. Time-domain finite difference approach to the calculation of the frequency-dependent characteristics of microstrip discontinuities , 1988 .

[5] K. Yee. Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media , 1966 .

[6] Ingo Wolff,et al. FDTD simulations of indoor propagation , 1994, Proceedings of IEEE Vehicular Technology Conference (VTC).

[7] Jean-Pierre Berenger,et al. A perfectly matched layer for the absorption of electromagnetic waves , 1994 .