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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Seung-Yeup Hyun |
| Copyright Year | 2002 |
| Abstract | Recently, a thin-wire (TW) approach was extended for the finite-difference time-domain (FDTD) analysis of resistively loaded cylindrical tube antennas. This approach was corrected by employing a quasi-static approximation of near-field behaviors and a voltage-current relation over the resistively loaded section without additional grid refinements for fine geometrical features. However, TW correction errors may have large effects on numerical stability of the TW FDTD computation. In this letter, a stabilized correction technique over the resistively loaded section is proposed here. Conduction and displacement currents inside and outside of the resistive antenna can be represented as axial equivalent resistance and capacitance, respectively. Thus, the equivalent resistance and capacitance are incorporated to the voltage-current update equation over the resistive section. Through the TW FDTD analysis of resistively loaded cylindrical tube monopole antennas, we have shown that this modification provides the stable results irrespective of the choice of the resistive loading profile and a time increment under conventional stability condition of the standard FDTD. |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 1433 |
| Ending Page | 1436 |
| Page Count | 4 |
| File Size | 1049296 |
| File Format | |
| ISSN | 15361225 |
| Volume Number | 13 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Finite difference methods Time-domain analysis Loaded antennas Electron tubes Capacitance Loading thin wires Finite-difference time-domain (FDTD) resistive loading loaded antennas stability |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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