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Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay

There are three kinds of Surface Acoustic Wave (SAW) filter design which are the Interdigitated Interdigital Transducer (IIDT) type design, Double Mode SAW (DMS) type design and ladder-type design. However, this study will focus on the SAW ladder-type filter with prescribed group delay as synthesis...

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主要作者: LIM , ANDREW ZHI LUN
格式: Final Year Project
語言:English
出版: 2018
在線閱讀:http://utpedia.utp.edu.my/19158/1/ANDREW%20LIM%20ZHI%20LUN%20FR.pdf
http://utpedia.utp.edu.my/19158/
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spelling my-utp-utpedia.191582019-06-20T10:41:05Z http://utpedia.utp.edu.my/19158/ Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay LIM , ANDREW ZHI LUN There are three kinds of Surface Acoustic Wave (SAW) filter design which are the Interdigitated Interdigital Transducer (IIDT) type design, Double Mode SAW (DMS) type design and ladder-type design. However, this study will focus on the SAW ladder-type filter with prescribed group delay as synthesis approach is applied to obtain a ladder filter with specific group delay network. A SAW ladder-type filter consists of one-port SAW resonators connected in series and shunt to obtain a bandpass filter (BPF) response. Therefore, the modeling of one-port SAW resonator using its equivalent circuit is conducted to investigate the relationship between the resonator structure and the lumped element parameters. The band-pass LC channel is outlined in light of the conventional Bessel channel plan. At that point, LC resonators in the channel are supplanted by SAW resonators with limited capacitance proportion γ. Limited γ creates passband swells in the gathering delay. ADS is chosen to coordinate the reaction of estimated SAW resonator with its identical circuit. The ability to build in transmission zeros at finite frequencies can improve the close-to-band rejection slope in term of high selectivity, and/or enhance the linearity of in-band group delay. In this paper, the synthesis is developed and presented together with the required canonical low-pass circuit forms and corresponding transmission zeros that the transfer functions may realize. The procedure for different low-pass filter degrees is included with the required circuit transformations which was a significant piece of work. Design examples are included to illustrate the synthesis technique. 2018-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/19158/1/ANDREW%20LIM%20ZHI%20LUN%20FR.pdf LIM , ANDREW ZHI LUN (2018) Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay. UNSPECIFIED.
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
description There are three kinds of Surface Acoustic Wave (SAW) filter design which are the Interdigitated Interdigital Transducer (IIDT) type design, Double Mode SAW (DMS) type design and ladder-type design. However, this study will focus on the SAW ladder-type filter with prescribed group delay as synthesis approach is applied to obtain a ladder filter with specific group delay network. A SAW ladder-type filter consists of one-port SAW resonators connected in series and shunt to obtain a bandpass filter (BPF) response. Therefore, the modeling of one-port SAW resonator using its equivalent circuit is conducted to investigate the relationship between the resonator structure and the lumped element parameters. The band-pass LC channel is outlined in light of the conventional Bessel channel plan. At that point, LC resonators in the channel are supplanted by SAW resonators with limited capacitance proportion γ. Limited γ creates passband swells in the gathering delay. ADS is chosen to coordinate the reaction of estimated SAW resonator with its identical circuit. The ability to build in transmission zeros at finite frequencies can improve the close-to-band rejection slope in term of high selectivity, and/or enhance the linearity of in-band group delay. In this paper, the synthesis is developed and presented together with the required canonical low-pass circuit forms and corresponding transmission zeros that the transfer functions may realize. The procedure for different low-pass filter degrees is included with the required circuit transformations which was a significant piece of work. Design examples are included to illustrate the synthesis technique.
format Final Year Project
author LIM , ANDREW ZHI LUN
spellingShingle LIM , ANDREW ZHI LUN
Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay
author_facet LIM , ANDREW ZHI LUN
author_sort LIM , ANDREW ZHI LUN
title Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay
title_short Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay
title_full Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay
title_fullStr Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay
title_full_unstemmed Design and Synthesis of Surface Acoustic Wave Ladder-Type Filter With Prescribed Group Delay
title_sort design and synthesis of surface acoustic wave ladder-type filter with prescribed group delay
publishDate 2018
url http://utpedia.utp.edu.my/19158/1/ANDREW%20LIM%20ZHI%20LUN%20FR.pdf
http://utpedia.utp.edu.my/19158/
_version_ 1739832595643891712
score 13.250246

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