Yazar "Aksen, Ahmet" için listeleme
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A frequency transformation based real frequency design approach for dual-band matching
Aksen, Ahmet; Yıldız, Serkan; Yarman, Bekir Sıddık Binboğa (IEEE, 2017)This work describes a real frequency design approach for dual-band matching networks. The proposed design technique employs a direct low-pass to dual pass band frequency transformation in the scattering based real frequency ... -
A high precision Cascade Synthesis Technique for real frequency matching involving Brune and Darlington Type-C sections
Yarman, Bekir Sıddık Binboğa; Aksen, Ahmet; Köprü, Ramazan; Aydın, Çağatay; Atilla, Doğu Çağdaş (IEEE, 2014)In this work, we introduce a high precision cascade synthesis technique for lossless matching networks involving Brune and Darlington Type-C sections. In the present manuscript, we generalized our previously introduced ... -
An immitance based tool for modelling passive one-port devices by means of darlington equivalents
Yarman, Bekir Sıddık Binboğa; Aksen, Ahmet; Kılınç, Ali (Urban & Fischer Verlag, 2001)An immitance-based method is presented to model measured or computed data, obtained from a "passive one-port physical device" by means of its Darlington equivalent. In other words, the given data is modelled as a lossless ... -
Immitance data modelling via linear interpolation techniques
Yarman, Bekir Sıddık Binboğa; Aksen, Ahmet; Kılınç, Ali (IEEE, 2002)With the advancement of the manufacturing technologies to produce new generation analog/digital communication systems, immitance data modelling has gained renewed importance in the literature. Specifically, models are ... -
Immitance data modelling via linear interpolation techniques: a classical circuit theory approach
Yarman, Bekir Sıddık Binboğa; Kılınç, Ali; Aksen, Ahmet (Wiley-Blackwell, 2004-11)With the advancement of the manufacturing technologies to produce new generation analog/digital communication systems, immitance data modelling has gained renewed importance in the literature. Specifically, models are ... -
Insertion loss design of rf filters with mixed lumped - distributed realization
Sümer, Ömer (Işık Üniversitesi, 2007)In this study, the purpose was to develop a user friendly software tool which enables to design microwave filters with lumped circuit elements, distributed transmission lines and mixed lumped-distributed circuit elements. ... -
Low pass filter design with improved stop-band suppression and synthesis with transformer-free ladders
Yıldız, Serkan; Aksen, Ahmet; Kılınç, Sedat; Yarman, Bekir Sıddık Binboğa (John Wiley and Sons Inc, 2021-09)A new method to design transformer-free low pass (LP) ladder network with improved stop-band suppression performance is introduced. The parametric representation of back-end impedance of LP filter network is established ... -
Microwave amplifier design for mobile communication via immittance data modelling
Kılınç, Ali; Pınarbaşı, Hacı; Yarman, Bekir Sıddık Binboğa; Aksen, Ahmet (IEEE, 2003)In this paper, a practical broadband microwave amplifier design algorithm based on immittance data modelling is presented. In the course of design, first, the optimum input and output terminations for the active device are ... -
Microwave engineering expertise in Turkey
Yarman, Bekir Sıddık Binboğa; Palamutçuoğulları, Osman; Kaya, İlker; Kızılbey, Oǧuzhan; Aksen, Ahmet; Akın, Tayfun; Özkan, Z. Levent; Oksar, İrfan; Nesimoğlu, Tayfun (Institute of Electrical and Electronics Engineers Inc., 2018-05)Reports on the status of microwave education and technological development in Turkey. -
Mixed element wideband microwave amplifier design via simplified real frequency technique
Kılınç, Sedat; Köprü, Ramazan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE Computer Society, 2014)In this study, we illustrate the design and implementation of a wideband microwave small-signal amplifier composed of mixed elements. The design is based on Simplified Real Frequency Technique (SRFT). A design of low power ... -
Multiband and concurrent matching network design
Yıldız, Serkan (Işık Üniversitesi, 2020-02-05)Multiband network design has become a big issue due to the current improvements in RF and MW technologies. Since the new wireless protocols come up fast such as 3G, 4G, 5G etc., the RF and MW hardware must be designed to ... -
Multiband and concurrent matching network design via brune sections
Yıldız, Serkan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE, 2017)A general multiband matching network design methodology for complex load impedance terminations is presented. In the proposed approach, Real Frequency Techniques (RFT) are used to define and optimize the multiband matching ... -
Multiband filter design using generalized mapping functions and synthesis with lumped resonators
Yıldız, Serkan; Aksen, Ahmet; Kılınç, Sedat; Yarman, Bekir Sıddık Binboğa (Czech Technical University, 2020-06-01)In this paper, a new multiband frequency mapping function is proposed to design multiband filter. The presented mapping function is a generalized form of the sequential low pass to band pass (LPtoBP) transformation. The ... -
Multiband matching network design via transformation based real frequency approach
Yıldız, Serkan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE, 2016)In this paper, a new method is presented for multiband matching network design. Low pass to band pass (LP-BP) frequency transformation is incorporated with the parametric Real Frequency Technique (RFT) for creating multiband ... -
A new software tool to model measured RF-data with optimum circuit topology
Yarman, Bekir Sıddık Binboğa; Kılınç, Ali; Aksen, Ahmet (IEEE, 2004)In this paper a new S/W tool is presented to model measured RF data employing immitance interpolation techniques. This S/W tool also employs a recently developed sub-routine, which generates circuit models with least number ... -
A numerical approach for the design of matching networks consisting of brune sections based on fujisawa constraints
Yıldız, Serkan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE, 2018)In this study, the realization problem of matching network consisting of Brune sections is investigated. In the synthesis of a general impedance function with finite transmission zeros, each transmission zero extraction ... -
A Numerical real frequency broadband matching technique based on parametric representation of scattering parameters
Aksen, Ahmet; Çimen, Ebru Gürsu; Yarman, Bekir Sıddık Binboğa (IEEE, 1998-11-24)In this study, a computer, aided broadband matching technique based on the parametric representation of scattering parameters is proposed. The new technique combines the advantageous of the so called parametric approach ... -
A parametric approach to construct two-variable positive real impedance functions for the real frequency design of mixed lumped-distributed matching networks
Aksen, Ahmet; Pınarbaşı, Hacı; Yarman, Bekir Sıddık Binboğa (IEEE, 2004)In this paper, a parametric approach to construct two-variable positive real driving point impedance functions characterizing lossless ladder networks with mixed lumped and distributed elements is presented. The proposed ... -
A parametric approach to describe distributed two-ports with lumped discontinuities for the design of broadband MMIC's
Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE, 2003)This paper addreses the use of mixed lumped and distributed elements in the matching equalizers of broadband microwave communication subsytems in MMIC realizations. Construction of two-variable scattering functions for ... -
Quad-band matching network design with real frequency technique employing frequency transformation
Yıldız, Serkan; Aksen, Ahmet; Yarman, Bekir Sıddık Binboğa (IEEE, 2017)In this study, a piecewise frequency transformation is presented for quad-band (QB) matching network design. The real frequency direct computational technique RFDCT is incorporated with the generated QB transformation. The ...