Performance of a circular crossed-dipole array for SDMA configuration adopting directivity and polarization control using particle swarm optimization algorithm
✍ Scribed by K. R. Mahmoud; R. Bansal; M. I. El-Adawy; S. H. Zainud-Deen; Sabry M. M. Ibrahem
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 491 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1096-4290
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✦ Synopsis
In this article, the performance of a circular crossed-dipole array (CCDA) for space division multiple access (SDMA) configurations adopting directivity and polarization control is presented. The array consists of 12 dual-polarized elements uniformly distributed in a circular configuration; each dual-polarized element (crossed-dipole) consists of two halfwave dipoles in a 6458 slant configuration. The modified particle swarm optimization and moment of method (MPSO-MOM) algorithm is used to calculate the complex weightings of the array elements in a mutual coupling environment for beamforming synthesis. In addition, the performance of the adaptive array using discrete feedings (1-bit amplitude and 4bit phase shifters or only 4-bit phase shifters) is studied. V