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    Adaptive Network-Based Inference System Models On Multiband Patch Antenna Design
    (TUBITAK Scientific & Technical Research Council, 2015) Demircioglu, Erdem; Sazlı, Murat Husnu; Sengül, Orhan; Imeci, Sehabeddin Taha; Ilgın, Hakkı Alparslan
    In this study, an adaptive network-based fuzzy inference system (ANFIS) for multiband microstrip patch antenna (MMPA) modeling is proposed. The MMPA includes a single patch with inverted L-shaped stubs on the edges. The antenna production process needs iterative runs of the electromagnetic (EM) simulator, fabricating and testing the simulated antenna to find the optimum geometry. Production processes (design, simulation, fabrication, and testing) and the cost computation time add to the overall manufacturing expenses. A computer-aided modeling approach using the ANFIS is developed and trained with data acquired from the EM simulators, Sonnet Suites and AWR AXIEM, and measurement data. The overall data set includes 7777 input-output pairs, of which 3338 are used for the testing of the ANFIS model. The trained ANFIS model provides accurate and reliable results compared with the EM simulators and measured data.
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    A NOVEL MICROSTRIP PATCH ANTENNA DESIGN FOR MOBILE APPLICATIONS
    (IEEE, 2014) Elmas, Volkan; Demircioglu, Erdem; Imeci, Taha
    In this study, a microstrip antenna operating at 1840 MHz is designed and simulation results are presented. Sonnet Suits 12.56 a powerful 3D EM simulator for antenna applications is utilized as the design software. The antenna air thickness is 170 mm and the gap between the antenna and floor is 3.05 nun. Cell size is regarded as 0.75 mm. The frequency of antenna is simulated in the frequency range of 1-3 GHz. S11, the back scattering parameter has the value of -15.5434 dB at the center frequency. The real value of the input impedance is 38.23716 Ohms and the imaginary value is 9.008487 Ohms. The resonance frequency has the gain value of 8.883196 dB.
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    A novel microstrip patch antenna design for mobile applications
    (IEEE Computer Society, 2014) Elmas, Volkan; Demircioglu, Erdem; Smeci, Taha
    In this study, a microstrip antenna operating at 1840 MHz is designed and simulation results are presented. Sonnet Suits 12.56 a powerful 3D EM simulator for antenna applications is utilized as the design software. The antenna air thickness is 170 mm and the gap between the antenna and floor is 3.05 mm. Cell size is regarded as 0.75 mm. The frequency of antenna is simulated in the frequency range of 1-3 GHz. S11, the back scattering parameter has the value of -15.5434 dB at the center frequency. The real value of the input impedance is 38.23716 Ohms and the imaginary value is 9.008487 Ohms. The resonance frequency has the gain value of 8.883196 dB. © 2014 IEEE.