A band-notched filtering omnidirectional dielectric resonator antenna with metal patches
In this paper, a laminated planar feed structure has been proposed to excite the omnidirectional radiation modes of a dielectric resonator (DR): TM01δ, TM011+δ and TM012+δ. The resonant frequencies of the three modes are 2.44, 2.78 and 3.10 GHz respectively. By combining three resonant frequencies,...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Alexandria Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016822003325 |
| _version_ | 1797978773797208064 |
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| author | Dong-Sheng La Chao Zhang Hong-Cheng Li Meng-Yuan Wang Jing-Wei Guo Mei-Jun Qu |
| author_facet | Dong-Sheng La Chao Zhang Hong-Cheng Li Meng-Yuan Wang Jing-Wei Guo Mei-Jun Qu |
| author_sort | Dong-Sheng La |
| collection | DOAJ |
| description | In this paper, a laminated planar feed structure has been proposed to excite the omnidirectional radiation modes of a dielectric resonator (DR): TM01δ, TM011+δ and TM012+δ. The resonant frequencies of the three modes are 2.44, 2.78 and 3.10 GHz respectively. By combining three resonant frequencies, the proposed band-notched dielectric resonator antenna (DRA) achieves a wide impedance bandwidth and stable omnidirectional radiation pattern in the whole passband. The simulated passbands of the proposed band-notched DRA are 2.23–2.56 GHz and 2.71–3.17 GHz. The laminated planar feed structure also can produce an adjustable radiation null (RN) at the upper edge of the passband, improving the skirt selectivity. To suppress in-band interference, four metal patches have been plated on the side walls of the DR and another adjustable RN (notched frequency) is generated within the passband. By changing the size of the metal patch, the notched band can be adjusted. In a word, the proposed DRA has numerous advantages such as wideband, stable omnidirectional radiation, filtering and band-notched functions. A prototype has been fabricated and measured for demonstration, and the measured results are coincided with the simulated ones. |
| first_indexed | 2024-04-11T05:29:27Z |
| format | Article |
| id | doaj.art-95db25e665de469f943f0023e2749ccb |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-04-11T05:29:27Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-95db25e665de469f943f0023e2749ccb2022-12-23T04:39:06ZengElsevierAlexandria Engineering Journal1110-01682022-12-0161121151111522A band-notched filtering omnidirectional dielectric resonator antenna with metal patchesDong-Sheng La0Chao Zhang1Hong-Cheng Li2Meng-Yuan Wang3Jing-Wei Guo4Mei-Jun Qu5School of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaSchool of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaSchool of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaSchool of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, ChinaSchool of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, ChinaState Key Laboratory of Media Convergence and Communication, School of Information and Communication Engineering, Communication University of China, Beijing 100024, China; Corresponding author.In this paper, a laminated planar feed structure has been proposed to excite the omnidirectional radiation modes of a dielectric resonator (DR): TM01δ, TM011+δ and TM012+δ. The resonant frequencies of the three modes are 2.44, 2.78 and 3.10 GHz respectively. By combining three resonant frequencies, the proposed band-notched dielectric resonator antenna (DRA) achieves a wide impedance bandwidth and stable omnidirectional radiation pattern in the whole passband. The simulated passbands of the proposed band-notched DRA are 2.23–2.56 GHz and 2.71–3.17 GHz. The laminated planar feed structure also can produce an adjustable radiation null (RN) at the upper edge of the passband, improving the skirt selectivity. To suppress in-band interference, four metal patches have been plated on the side walls of the DR and another adjustable RN (notched frequency) is generated within the passband. By changing the size of the metal patch, the notched band can be adjusted. In a word, the proposed DRA has numerous advantages such as wideband, stable omnidirectional radiation, filtering and band-notched functions. A prototype has been fabricated and measured for demonstration, and the measured results are coincided with the simulated ones.http://www.sciencedirect.com/science/article/pii/S1110016822003325Dielectric resonator antennaBand-notchedFilteringRadiation nullOmnidirectional |
| spellingShingle | Dong-Sheng La Chao Zhang Hong-Cheng Li Meng-Yuan Wang Jing-Wei Guo Mei-Jun Qu A band-notched filtering omnidirectional dielectric resonator antenna with metal patches Alexandria Engineering Journal Dielectric resonator antenna Band-notched Filtering Radiation null Omnidirectional |
| title | A band-notched filtering omnidirectional dielectric resonator antenna with metal patches |
| title_full | A band-notched filtering omnidirectional dielectric resonator antenna with metal patches |
| title_fullStr | A band-notched filtering omnidirectional dielectric resonator antenna with metal patches |
| title_full_unstemmed | A band-notched filtering omnidirectional dielectric resonator antenna with metal patches |
| title_short | A band-notched filtering omnidirectional dielectric resonator antenna with metal patches |
| title_sort | band notched filtering omnidirectional dielectric resonator antenna with metal patches |
| topic | Dielectric resonator antenna Band-notched Filtering Radiation null Omnidirectional |
| url | http://www.sciencedirect.com/science/article/pii/S1110016822003325 |
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