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    Genetik Algoritma ile Genişbant Anten Tasarimi Wideband Array Design with Genetic Algorithm
    (Institute of Electrical and Electronics Engineers Inc., 2023) Dikdere, Mustafa Öner; Genç, Yasin; Korkmaz, Nilay Aytaş; Akkoç, Ahmet; Afacan, Erkan; Yazgan, Erdem
    The importance of big data transfer and higher speed communication is increasing day by day in communication systems. Antennas are key objects in wireless communication systems. Antenna specifications can be designed according to wireless communication requirements. Genetic algorithms, one of the types of heuristic algorithms, play an important role in antenna design. In genetic algorithms, the proposed near-best design is given as a result to obtain the desired antenna properties. In this study, the microstrip linear antenna array was designed with the genetic algorithms, and reached a better specification than the frequency range determined by the National Communications Commission (FCC). © 2023 IEEE.
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    Higher Order Taylor and Golomb Costas Arrays
    (Institute of Electrical and Electronics Engineers Inc., 2023) Güdek, Mesut; Genç, Yasin; Korkmaz, Nilay Aytaş; Akkoç, Ahmet; Afacan, Erkan; Yazgan, Erdem
    Costas arrays, which have been defined as special permutation matrices, have widespread applications in many fields. Low probability of intercept (LPI) radars are used to detect targets without being detected by hostile elements. Frequency Shift Keying is one of the modulation types used in LPI radars. Costas arrays are used to generate frequency sets for LPI radars. These frequency sets with frequency shift keying waveforms are mostly generated using methods based on finite field theory. In this study, a comprehensive search for higher order (up to 5000) variational Costas arrays have been performed with the software developed using C++ programming language. The results obtained are presented in tables. © 2023 IEEE.