An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays
A design procedure for the synthesis of a coupled active antenna oscillator array is presented. Such an array is synthesized by deriving two sets of parameters: the radiators' positions and the oscillators' outputs. The outputs are used to excite the radiators. Minimization of the mean squ...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2009/208706 |
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| author | Theodoros N. Kaifas John N. Sahalos |
| author_facet | Theodoros N. Kaifas John N. Sahalos |
| author_sort | Theodoros N. Kaifas |
| collection | DOAJ |
| description | A design procedure for the synthesis of a coupled active antenna oscillator array is presented. Such an array is synthesized by deriving two sets of parameters: the radiators' positions and the oscillators' outputs. The outputs are used to excite the radiators. Minimization of the mean square error between the desired pattern and the resulting one is made. Synthesis starts from an initial array, which is perturbed iteratively by varying simultaneously the element excitations and positions. In the iteration, the first variation of the cost function is set equal to zero. The final array results from the last iteration, where the stopping criteria are met.
The procedure designs simultaneously both the antenna and the attached coupled oscillator array providing viable solutions. The second by properly configuring the tuning parameters through the use of closed-form formulas. The resulting arrays are shown to comply with the desired pattern and the nonlinear dynamics thus proving the validity of our method. |
| format | Article |
| id | doaj-art-ec02cd927e52497a8473f84788c2fc92 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-ec02cd927e52497a8473f84788c2fc922025-02-03T05:59:51ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772009-01-01200910.1155/2009/208706208706An Iterative Technique for the Synthesis of Active Antenna Oscillator ArraysTheodoros N. Kaifas0John N. Sahalos1Radiocommunications Laboratory, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceRadiocommunications Laboratory, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceA design procedure for the synthesis of a coupled active antenna oscillator array is presented. Such an array is synthesized by deriving two sets of parameters: the radiators' positions and the oscillators' outputs. The outputs are used to excite the radiators. Minimization of the mean square error between the desired pattern and the resulting one is made. Synthesis starts from an initial array, which is perturbed iteratively by varying simultaneously the element excitations and positions. In the iteration, the first variation of the cost function is set equal to zero. The final array results from the last iteration, where the stopping criteria are met. The procedure designs simultaneously both the antenna and the attached coupled oscillator array providing viable solutions. The second by properly configuring the tuning parameters through the use of closed-form formulas. The resulting arrays are shown to comply with the desired pattern and the nonlinear dynamics thus proving the validity of our method.http://dx.doi.org/10.1155/2009/208706 |
| spellingShingle | Theodoros N. Kaifas John N. Sahalos An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays International Journal of Antennas and Propagation |
| title | An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays |
| title_full | An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays |
| title_fullStr | An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays |
| title_full_unstemmed | An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays |
| title_short | An Iterative Technique for the Synthesis of Active Antenna Oscillator Arrays |
| title_sort | iterative technique for the synthesis of active antenna oscillator arrays |
| url | http://dx.doi.org/10.1155/2009/208706 |
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