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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

  1. Tez No: 23502
  2. Yazar: İBRAHİM TEKİN
  3. Danışmanlar: PROF. DR. NEVZAT YILDIRIM
  4. Tez Türü: Yüksek Lisans
  5. Konular: Elektrik ve Elektronik Mühendisliği, Electrical and Electronics Engineering
  6. Anahtar Kelimeler: Mikrodalga filtreler, Tasarım, Şerit kılavuz, Microwave filters, Design, Substrate stripline
  7. Yıl: 1992
  8. Dil: İngilizce
  9. Üniversite: Orta Doğu Teknik Üniversitesi
  10. Enstitü: Fen Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Belirtilmemiş.
  12. Bilim Dalı: Belirtilmemiş.
  13. 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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