Now showing items 1-10 of 26
Utilization of Blind Source Separation Algorithms for MIMO Linear Precoding
[Abstract] In this paper we investigate the application of Blind Source Separation (BSS) algorithms for the decoding of linearly precoded MIMO communication systems and for the design of limited feedback channels that send ...
Visualizing the 3D polar power patterns and excitations of planar arrays with Matlab
(Institute of Electrical and Electronics Engineers, 2004-04)
[Abstrac] This paper discusses the use of Matlab to create three-dimensional polar plots of the power patterns of planar arrays together with 3D plots of the amplitudes and phases of their excitations. A few lines of Matlab ...
Synthesis of multiple-pattern planar antenna arrays with single prefixed or jointly optimized amplitude distributions
(John Wiley & Sons, Inc., 2002-01-05)
[Abstract] Previous work on the generation of multiple radiation patterns by a single linear array antenna with an unchanging excitation amplitude distribution is generalized to planar arrays. The amplitude distribution ...
Variation in bandwidths among solutions to shaped beam synthesis problems concerning linear arrays of parallel dipoles
(Institute of Electrical and Electronics Engineers, 2005-01)
The problem of synthesizing a linear array generating a shaped beam pattern with M filled s has 2M alternative solutions. In this study we examined their bandwidths as regards compliance with pattern quality or input ...
Variation in the bandwidths of pattern-quality parameters and maximum embedded impedance among the solutions to shaped-beam synthesis problems for collinear dipole arrays
(Institute of Electrical and Electronics Engineers, 2003)
[Abstract] We investigated variation in the bandwidths of ripple, sidelobe level, -3 dB beamwidth, and maximum element embedded (active) impedance (|Z/sup e/|/sub max/) among multiple collinear dipole arrays radiating a ...
Very fast method to synthesise conformal arrays
(The Institution of Engineering and Technology, 2007-08-02)
[Abstract] A very fast technique that allows the synthesising of arbitrary footprint patterns by using conformal arrays with many radiating elements is described. This method is based on a combination of Woodward-Lawson ...
Synthesis of multi-radial line antenna for HIPERLAN
(The Institution of Engineering and Technology, 2003-08)
[Abstract] We present a new antenna concept - the multi-radial travelling wave line antenna - that achieves a broadband conical radiation pattern suitable for use in multiple C-band wireless computer networks.
An Experimental Set - Up for Measurement of the Power Absorbed from 900 MHz GSM Standing Waves by Small Animals , Illustrated by Application to Picrotoxin - Treated Rats
(Electromagnetics Academy, 2008)
[Abstract] We describe an experimental set-up for exposure of small animals to radiofrequency standing waves that allows direct measurement of the power absorbed by the animal. Essentially, the set-up consists of a metallic ...
Application of time modulation in the synthesis of sum and difference patterns by using linear arrays
(John Wiley & Sons, Inc., 2006-05)
[Abstract] In this paper, time modulation is applied to a small number of elements of a linear array that radiates either sum or difference patterns, in order to take control over their sidelobe levels. The simulated ...
A comparison of optimization techniques for power patterns with low sidelobes generated by linear arrays with efficient excitation distributions
(John Wiley & Sons, Inc., 2005-04-05)
[Abstract] Equispaced linear arrays that have uniformly excited central elements and monotonically decreasing flanking segments have been shown to yield low-sidelobe patterns with specified constraints on the effective ...