A new TLM modelling method has been developed for patch antennas on magnetized ferrite substrate. The antenna has magnetically controllable resonance frequency and beam direction. The anisotropic permeability tensor of ferrite is modelled by state equations derived from the Polder tensor. Simulation
FDTD analysis of microstrip patch antenna on ferrite substrate
โ Scribed by M. A. Alsunaidi
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 114 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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โฆ Synopsis
Abstract
The finiteโdifference timeโdomain (FDTD) method is used to model the response of microstrip patch antennas on magnetized ferrite substrates. The proposed FDTD model utilizes the auxiliary differential equation approach to represent the frequency dependent permeability tensor in the time domain equations. The resulting 3D fullโwave numerical model is tested and verified against experimental data showing very good agreement. This model, being efficient, stable, and robust, is expected to assist in the design and characterization of wideband ferriteโbased antenna structures. ยฉ Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1848โ1851, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23526
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