Design and realization of microwave narrowband bandpass filters using stripline like structures
Şerit klavuz benzeri yapılar ile darbantlı mikrodalga bant geçiren süzgeç tasarımı ve gerçekleştirilmesi
- Tez No: 23502
- Danışmanlar: PROF. DR. NEVZAT YILDIRIM
- Tez Türü: Yüksek Lisans
- Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
- Anahtar Kelimeler: Mikrodalga filtreler, Tasarım, Şerit kılavuz, Microwave filters, Design, Substrate stripline
- Yıl: 1992
- Dil: İngilizce
- Üniversite: Orta Doğu Teknik Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
ABSTRACT DESIGN AND REALIZATION OF MICROWAVE NARROWBAND BANDPASS FILTERS USING STRIPLINE LIKE STRUCTURES TEKİN, Ibrahim M.S. in Electrical and Electronics Engineering Supervisor: Prof. Dr. Nevzat Yıldırım September, 1992, 147 Pages In this thesis, some filter topologies are investigated for design and realization of microwave bandpass filters having fractional bandwidths of less than 10%. Through the designs, equi ripple passband general stopband filters are used. For the realization of 2. 0-2. 25 GHz and S. 75-6. 0 GHz filters, microstripline application is investigated and inverter usage in filters are also covered. To obtain alternative techniques to design narrowband bandpass filters, half angle transformation is used on a HPF. The filter, 5.75-6.0 GHz, is realized in stripline structure. Furthermore, a novel transformation is obtained which relaxes the impedance values of the elements of the filter liihaving finite transmission zeros. This transformation is a generalization of well known Geffe transformation. Using this transformation, 5. 75-6. 0 GHz filter is redesigned using suspended substrate stripline structure. The simulation results both for stripline design and suspended substrate stripline design are quite in agreement with the realization results. K&y words: narrowband bandpass filters, stripline, suspended substrate stripline, half angle transformation, inverter. Science code: 609. 04. 01. IV
Özet (Çeviri)
ABSTRACT DESIGN AND REALIZATION OF MICROWAVE NARROWBAND BANDPASS FILTERS USING STRIPLINE LIKE STRUCTURES TEKİN, Ibrahim M.S. in Electrical and Electronics Engineering Supervisor: Prof. Dr. Nevzat Yıldırım September, 1992, 147 Pages In this thesis, some filter topologies are investigated for design and realization of microwave bandpass filters having fractional bandwidths of less than 10%. Through the designs, equi ripple passband general stopband filters are used. For the realization of 2. 0-2. 25 GHz and S. 75-6. 0 GHz filters, microstripline application is investigated and inverter usage in filters are also covered. To obtain alternative techniques to design narrowband bandpass filters, half angle transformation is used on a HPF. The filter, 5.75-6.0 GHz, is realized in stripline structure. Furthermore, a novel transformation is obtained which relaxes the impedance values of the elements of the filter liihaving finite transmission zeros. This transformation is a generalization of well known Geffe transformation. Using this transformation, 5. 75-6. 0 GHz filter is redesigned using suspended substrate stripline structure. The simulation results both for stripline design and suspended substrate stripline design are quite in agreement with the realization results. K&y words: narrowband bandpass filters, stripline, suspended substrate stripline, half angle transformation, inverter. Science code: 609. 04. 01. IV
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