The array factor (sidelobe level, SLL) of a linear array is optimized using modified continuous genetic algorithms in this work. The amplitudes and phases of the currents as well as the separation of the antennas are all taken as variables to be controlled. The results of the design using modified GA versions are compared with other methods. Two design problems were studied using several contin...

In this paper, an optimal approach to design wideband tapped-delay line (TDL) array antenna is proposed. This approach lets us control the array angular and frequency response over a wide frequency band. To this end, some design restrictions are defined and a multi-objective optimization problem is constructed by putting the individual restrictions together. The optimal weights of the TDL proce...

For help in preparation of this article, thanks to Ballard Andrews, Soraya Betancourt, Denise Freed and Martin Hürlimann, Cambridge, Massachusetts, USA; Myrt E. Cribbs, Chevron Energy Technology Company, Houston; Tara Davies, James Du and Ray Kennedy, Edmonton, Alberta, Canada; Peter Eichelberger, Adomite Chemicals, Nalco Energy Services L.P., Sugar Land, Texas; Doris Gonzalez, Houston; Gregory...

Editor’s Note: At the 1983 National Conference, there was a special session on Technology Transfer. Six speakers from different industrial organizations presented their personal views on the process of turning the results of AI restarch and development into commercial practice. Unfortunately there was not time to produce and distribute a written record of the Symposium for the attendees. To cor...

Partial shading reduces the power output of solar modules, generates several peak points in P-V and I-V curves and shortens the expected life cycle of inverters and solar panels. Electrical array reconfiguration of PV arrays that is based on changing the electrical connections with switching devices, can be used as a practical solution to prevent such problems. Valuable studies have been perfor...