Design of Dual Bandpass and Bandreject LC Ladder Filters
This paper deals with the design of two-passband bandpass and two-stopband bandreject LC ladder filters. The design method is based on the special dual frequency transformation that transforms normalized lowpass to either bandpass with two passbands or to bandreject with two stopbands that are speci...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
2006-09-01
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| Series: | Radioengineering |
| Subjects: | |
| Online Access: | http://www.radioeng.cz/fulltexts/2006/06_03_26_30.pdf |
| _version_ | 1819068624660332544 |
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| author | J. Hospodka J. Bicak |
| author_facet | J. Hospodka J. Bicak |
| author_sort | J. Hospodka |
| collection | DOAJ |
| description | This paper deals with the design of two-passband bandpass and two-stopband bandreject LC ladder filters. The design method is based on the special dual frequency transformation that transforms normalized lowpass to either bandpass with two passbands or to bandreject with two stopbands that are specified by four cutoff frequencies. The paper shows analytical solution relating these four cutoff frequencies to parameters of dual frequency transformation. It enables a direct computation of dual band LC filter elements from a normalized lowpass filter by means of simple relations. These relations have been implemented in the mathematical program Maple (TM) as new user functions. They are supposed to be used as an enhancement of Syntfil package which is intended for analog filter design in program Maple. Specific application is shown on an example of the two-passband bandpass LC filter design. |
| first_indexed | 2024-12-21T16:37:07Z |
| format | Article |
| id | doaj.art-bc23d31550e04be4b16402fa3808929d |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-12-21T16:37:07Z |
| publishDate | 2006-09-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-bc23d31550e04be4b16402fa3808929d2022-12-21T18:57:12ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122006-09-011532630Design of Dual Bandpass and Bandreject LC Ladder FiltersJ. HospodkaJ. BicakThis paper deals with the design of two-passband bandpass and two-stopband bandreject LC ladder filters. The design method is based on the special dual frequency transformation that transforms normalized lowpass to either bandpass with two passbands or to bandreject with two stopbands that are specified by four cutoff frequencies. The paper shows analytical solution relating these four cutoff frequencies to parameters of dual frequency transformation. It enables a direct computation of dual band LC filter elements from a normalized lowpass filter by means of simple relations. These relations have been implemented in the mathematical program Maple (TM) as new user functions. They are supposed to be used as an enhancement of Syntfil package which is intended for analog filter design in program Maple. Specific application is shown on an example of the two-passband bandpass LC filter design.www.radioeng.cz/fulltexts/2006/06_03_26_30.pdfFrequency transformationtwo-passbands bandpass filtertwo-stopbands bandreject filterSyntfil package |
| spellingShingle | J. Hospodka J. Bicak Design of Dual Bandpass and Bandreject LC Ladder Filters Radioengineering Frequency transformation two-passbands bandpass filter two-stopbands bandreject filter Syntfil package |
| title | Design of Dual Bandpass and Bandreject LC Ladder Filters |
| title_full | Design of Dual Bandpass and Bandreject LC Ladder Filters |
| title_fullStr | Design of Dual Bandpass and Bandreject LC Ladder Filters |
| title_full_unstemmed | Design of Dual Bandpass and Bandreject LC Ladder Filters |
| title_short | Design of Dual Bandpass and Bandreject LC Ladder Filters |
| title_sort | design of dual bandpass and bandreject lc ladder filters |
| topic | Frequency transformation two-passbands bandpass filter two-stopbands bandreject filter Syntfil package |
| url | http://www.radioeng.cz/fulltexts/2006/06_03_26_30.pdf |
| work_keys_str_mv | AT jhospodka designofdualbandpassandbandrejectlcladderfilters AT jbicak designofdualbandpassandbandrejectlcladderfilters |