Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section
Abstract Design procedure of a novel transmission line low‐pass filter is presented. The filter has a flexible rejection response for a prescribed cut‐off frequency and an in‐band ripple factor. It is compact by using a Z‐shaped coupled‐line section, which is loaded with open‐circuited stubs. All of...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-12-01
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| Series: | IET Microwaves, Antennas & Propagation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/mia2.12204 |
| _version_ | 1811282798761213952 |
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| author | Xiaodong Huang Yuting Zhou Xiuhua Jin Liu Yang Chonghu Cheng |
| author_facet | Xiaodong Huang Yuting Zhou Xiuhua Jin Liu Yang Chonghu Cheng |
| author_sort | Xiaodong Huang |
| collection | DOAJ |
| description | Abstract Design procedure of a novel transmission line low‐pass filter is presented. The filter has a flexible rejection response for a prescribed cut‐off frequency and an in‐band ripple factor. It is compact by using a Z‐shaped coupled‐line section, which is loaded with open‐circuited stubs. All of the transmission line elements are identical in electrical length, and the impedances can be calculated by solving certain specific equations according to prescribed in‐band specifications. The simulated results show that the circuit can generate low‐pass responses with third‐, fifth‐, and seventh‐order filtering functions. The filter order depends on the number and position of the loading stubs. For verification, two sample filters with cut‐off frequency of 0.5/0.3 GHz are fabricated using a three‐/five‐layer PCB process, which generate seventh‐order low‐pass filtering responses with good selectivity. The experimental results agree well with the predictions. |
| first_indexed | 2024-04-13T01:59:01Z |
| format | Article |
| id | doaj.art-25121701e01744db96e77e72adc1a653 |
| institution | Directory Open Access Journal |
| issn | 1751-8725 1751-8733 |
| language | English |
| last_indexed | 2024-04-13T01:59:01Z |
| publishDate | 2021-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Microwaves, Antennas & Propagation |
| spelling | doaj.art-25121701e01744db96e77e72adc1a6532022-12-22T03:07:41ZengWileyIET Microwaves, Antennas & Propagation1751-87251751-87332021-12-0115151899191310.1049/mia2.12204Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line sectionXiaodong Huang0Yuting Zhou1Xiuhua Jin2Liu Yang3Chonghu Cheng4College of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing ChinaCollege of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing ChinaCollege of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing ChinaCollege of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing ChinaCollege of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing ChinaAbstract Design procedure of a novel transmission line low‐pass filter is presented. The filter has a flexible rejection response for a prescribed cut‐off frequency and an in‐band ripple factor. It is compact by using a Z‐shaped coupled‐line section, which is loaded with open‐circuited stubs. All of the transmission line elements are identical in electrical length, and the impedances can be calculated by solving certain specific equations according to prescribed in‐band specifications. The simulated results show that the circuit can generate low‐pass responses with third‐, fifth‐, and seventh‐order filtering functions. The filter order depends on the number and position of the loading stubs. For verification, two sample filters with cut‐off frequency of 0.5/0.3 GHz are fabricated using a three‐/five‐layer PCB process, which generate seventh‐order low‐pass filtering responses with good selectivity. The experimental results agree well with the predictions.https://doi.org/10.1049/mia2.12204bandstop filtercommensurate linecoupled‐lineequiripple filterlow‐pass filter |
| spellingShingle | Xiaodong Huang Yuting Zhou Xiuhua Jin Liu Yang Chonghu Cheng Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section IET Microwaves, Antennas & Propagation bandstop filter commensurate line coupled‐line equiripple filter low‐pass filter |
| title | Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section |
| title_full | Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section |
| title_fullStr | Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section |
| title_full_unstemmed | Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section |
| title_short | Equiripple design of low‐pass filter using stub‐loaded Z‐shaped coupled‐line section |
| title_sort | equiripple design of low pass filter using stub loaded z shaped coupled line section |
| topic | bandstop filter commensurate line coupled‐line equiripple filter low‐pass filter |
| url | https://doi.org/10.1049/mia2.12204 |
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