J. R. Wait, Electromagnetic Radiation from Cylindrical Structures, Peter Peregrinus, London, UK, 1988.  Home/Search   Document Not in Database   Summary   Related Articles

.... Digital BeamForming (DBF) technique [7] In this technique the amplitude excitations are determined from [13] and the phases are found following the analysis in [23] Once the complex (amplitude and phase) excitations are known, the patterns can be found from the exact or approximate formulas in [24], 25] These approximate formulas have been shown to work in a variety of practical modeling situations and are also simple to use [26] 28] To that end, the NEC BSC code [29] can be used which contains these approximate formulas. The NEC BSC code requires antennas to be off the cylinder curved ....

....fundamental concepts of digital beamforming (DBF) antennas, in obtaining narrow beamwidths and low sidelobes. 17 It is a good computational practice to validate a general purpose computer code for a canonical problems. The NEC BSC code can be verified against the exact eigenfunction formulation [24]. These validation results have been included in Appendix A. The formulations in the NEC BSC code do not allow antennas to be mounted directly on the cylinder [25] 26] 29] The source has to be located about 4 away from the curved surface. However it has been verified in [21] 22] that this ....

J. R. Wait, Electromagnetic Radiation from Cylindrical Structures, Peter Peregrinus, London, UK, 1988.

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