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Süperformül yaklaşımıyla tasarlanan toprak iletkeni kusurlu yapılar uygulanarak ultra geniş bantlı (UWB) mikroşerit filtre tasarımı önerilmiştir. Aynı zamanda tasarımlarda kullanılan malzemelerin filtre özelliklerine etkileri incelenmiştir. Filtre karakteristikleri belirlendikten sonra AWR programında hedeflenen özelliklere uygun filtre tasarımı gerçekleştirilmiştir. Filtre yapısı, 8 GHz merkez frekanslı 5. dereceden Chebyshev ultra geniş bant geçiren filtre temel alınarak oluşturulmuştur. AWR'de tasarlanan bu filtre modeli HFSS programına aktarılıp FR4 ve RO3035 malzemelerinin filtre karaktersitikleri üzerindeki etkisi incelenmiştir. Ayrıca taban iletkenine çeşitli sayıda kusurlar açılarak etkileri gözlemlenmiştir. Johan Gielis tarafından önerilen süperformüldeki denklem parametreleri MATLAB programı kullanılarak açılan kusurların yapıları hesaplanmıştır. Tasarlanan filtrelerin PCB üretimi yapılmış olup Anritsu spektrum analizör cihazı ile deneysel ölçümleri alınmıştır. Elektromanyetik simülasyon programlarından elde edilen sonuçlar ile üretilen filtrelerin deneysel ölçüm sonuçları kıyaslandığında, sonuçların birbirleri ile tutarlı olduğu görülmektedir.
Designed with the superformulary approach, the ultra-breadband (UWB) microband filter design is recommended by the application of deformed structures of the soil conductor. The effects of materials used in designs on the filter characteristics have also been studied. After the filter characteristics are determined, the filter design is implemented in accordance with the target features in the AWR program. The filter structure is created on the basis of the 5-degree Chebyshev ultra-bread-band filter with 8 GHz central frequency. This filter model designed in AWR has been transferred to the HFSS program and the impact of FR4 and RO3035 materials on the filter characteristics has been studied. The effects of various defects on the base conductor have also been observed. Parameters of equation in the superformule recommended by Johan Gielis are calculated by the structures of the defects opened using the MATLAB program. The designed filters have been made PCB production and experimental measurements have been taken with the Anritsu spectrum analyzer device. When comparing the results of the electromagnetic simulation programmes with the results of the experimental measurement of the filters, the results appear to be consistent with each other.
Ultra-wideband (UWB) microstrip filter design has been proposed by applying defected ground conductor structures designed with the superformula approach. Simultaneously, the effects of the materials used in the designs on the filter properties have been examined. After the filter characteristics have been determined, the filter design has carried out in the AWR program. The filter structure has based on an 8 GHz center frequency fifth-order Chebyshev ultra-wide bandpass filter. The filter model designed in AWR has transferred to the HFSS program, and the effect of FR4 and RO3035 materials on filter characteristics have been investigated. The various number of defects, each shaped with superformula, is opened to the base conductor, and their effects are observed. The parameters in the superformula proposed by Johan Gielis have been calculated in the MATLAB program. PCB productions of the designed filters have been made, and experimental measurements have been taken with the Anritsu spectrum analyzer device. When the results obtained from electromagnetic simulation programs have compared with the experimental measurement results of the filters produced, it has been seen that the results are consistent with each other.
Alan : Fen Bilimleri ve Matematik; Mühendislik
Dergi Türü : Ulusal
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