A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars
This paper presents a low profile cylindrical cavity quadruple-mode dual-band bandpass filter. Five short-circuited metal pillars are loaded in a cylindrical cavity to change the electric field distributions of the original resonant modes. The changed TM010 mode and TM110+ mode form the first passba...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
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| Series: | Alexandria Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016823003551 |
| _version_ | 1797804033206910976 |
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| author | Dong-Sheng La Dong-Yi Huang Yu-Jiao Zhang Ting-Xue Jiang |
| author_facet | Dong-Sheng La Dong-Yi Huang Yu-Jiao Zhang Ting-Xue Jiang |
| author_sort | Dong-Sheng La |
| collection | DOAJ |
| description | This paper presents a low profile cylindrical cavity quadruple-mode dual-band bandpass filter. Five short-circuited metal pillars are loaded in a cylindrical cavity to change the electric field distributions of the original resonant modes. The changed TM010 mode and TM110+ mode form the first passband, and the changed TM110- mode and TM210+ mode form the second passband. The center frequencies of the two passbands are 3.05 GHz and 3.59 GHz, with relative bandwidths of 1.72% and 2.5%, respectively. The first passband can be adjusted independently, and the stopband range of the proposed bandpass filter is relatively wide. By using the degenerate modes, two transmission zeros are introduced to improve the selectivity of the proposed bandpass filter. The use of TMmn0 mode effectively reduces the height of the cavity. The fabricated cavity bandpass filter is measured, and the measured results are accordance with the simulated ones. |
| first_indexed | 2024-03-13T05:30:02Z |
| format | Article |
| id | doaj.art-f8f14462f99e4ab981f7de261e16f751 |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-03-13T05:30:02Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-f8f14462f99e4ab981f7de261e16f7512023-06-15T04:54:23ZengElsevierAlexandria Engineering Journal1110-01682023-07-0173729735A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillarsDong-Sheng La0Dong-Yi Huang1Yu-Jiao Zhang2Ting-Xue Jiang3School of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China; Corresponding author.The State Key Laboratory of Millimeter-Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaSchool of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaSchool of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaThis paper presents a low profile cylindrical cavity quadruple-mode dual-band bandpass filter. Five short-circuited metal pillars are loaded in a cylindrical cavity to change the electric field distributions of the original resonant modes. The changed TM010 mode and TM110+ mode form the first passband, and the changed TM110- mode and TM210+ mode form the second passband. The center frequencies of the two passbands are 3.05 GHz and 3.59 GHz, with relative bandwidths of 1.72% and 2.5%, respectively. The first passband can be adjusted independently, and the stopband range of the proposed bandpass filter is relatively wide. By using the degenerate modes, two transmission zeros are introduced to improve the selectivity of the proposed bandpass filter. The use of TMmn0 mode effectively reduces the height of the cavity. The fabricated cavity bandpass filter is measured, and the measured results are accordance with the simulated ones.http://www.sciencedirect.com/science/article/pii/S1110016823003551Dual-bandCavity filterLow profileMulti-modeTransmission zero |
| spellingShingle | Dong-Sheng La Dong-Yi Huang Yu-Jiao Zhang Ting-Xue Jiang A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars Alexandria Engineering Journal Dual-band Cavity filter Low profile Multi-mode Transmission zero |
| title | A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars |
| title_full | A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars |
| title_fullStr | A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars |
| title_full_unstemmed | A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars |
| title_short | A low profile cylindrical cavity dual-band bandpass filter with short-circuited metal pillars |
| title_sort | low profile cylindrical cavity dual band bandpass filter with short circuited metal pillars |
| topic | Dual-band Cavity filter Low profile Multi-mode Transmission zero |
| url | http://www.sciencedirect.com/science/article/pii/S1110016823003551 |
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