Title :
Analysis of parallel plate dipole sensor using finite difference time domain method
Author :
De, N.C. ; Pande, D.C. ; Poddar, D.R.
Author_Institution :
Bharat Electron. Ltd., Bangalore, India
Abstract :
A parallel plate dipole (PPD) sensor has been analysed using a direct three dimensional finite difference time domain (FDTD) method. The various electrical parameters of the PPD sensor derived using this method are: (a) the sensor response to a double exponential transient wave and a Gaussian pulse, (b) the sensor capacitance, (c) the equivalent length, (d) the equivalent volume, and (e) the figure of merit. The variations of these parameters with the structural dimension of the sensor are determined and compared with that obtained by the conventional electrostatic method. Finally the effect of a dielectric shell (used for the mechanical protection of the sensor) on the equivalent length and the response of the sensor are analysed and discussed.
Keywords :
dipole antennas; electric fields; electric sensing devices; electromagnetic pulse; finite difference time-domain analysis; transients; 3D FDTD method; EMP measurement; Gaussian pulse; analog electrical signal; analog passive small antenna; dielectric shell; double exponential transient field; double exponential transient wave; electric field sensor; electrical parameters; electrostatic method; equivalent length; equivalent volume; experimental results; figure of merit; finite difference time domain method; mechanical protection; parallel plate dipole sensor; response analysis; sensor capacitance; sensor response; structural dimension; Capacitance; Capacitive sensors; Dielectrics; Difference equations; EMP radiation effects; Finite difference methods; Maxwell equations; Mechanical sensors; Protection; Time domain analysis;
Conference_Titel :
Electromagnetic Interference and Compatibility '99. Proceedings of the International Conference on
Print_ISBN :
81-900652-0-3
DOI :
10.1109/ICEMIC.1999.871614
