Several formulas based on the cavity model and the transmission-line model are combined to produce closed-form expressions for calculating the bandwidth of probe-fed rectanguhr microstrip antenna elements with various thicknesses and various relatiue permittiuities of substrate materials. The formul
Calculation of bandwidth for electrically thin and thick rectangular microstrip antennas with the use of multilayered perceptrons
✍ Scribed by Şeref Sağiroğlu; Kerim Güney; Mehmet Erler
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 209 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1096-4290
No coin nor oath required. For personal study only.
✦ Synopsis
A new, simple approach for calculating bandwidth of electrically thin and thick rectangular microstrip patch antennas, based on multilayered perceptrons network, is presented. Four learning algorithms, backpropagation, delta-bar-delta, quick propagation, and extended-delta-bar-delta are used to train perceptrons. Theoretical bandwidth results obtained using the new approach are in agreement with experimental results available in the literature.
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A new method for calculating the resonant frequency of electrically thin and thick rectangular microstrip antennas, based on the fuzzy inference systems, is presented. The optimum design parameters of the fuzzy inference systems are determined by using the classical, modified, and improved tabu sear