A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements
In this study, a frequency-selective rasorber with a tunable passband and two absorptive bands is presented. It is designed using two active FSSs, an absorptive FSS realized with tripole elements, and a lossless bandpass FSS achieved with ring slots. Both active FSSs embedded with varactors realize...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2021/9766379 |
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| author | Qingxin Guo Qian Chen Jianxun Su Zengrui Li |
| author_facet | Qingxin Guo Qian Chen Jianxun Su Zengrui Li |
| author_sort | Qingxin Guo |
| collection | DOAJ |
| description | In this study, a frequency-selective rasorber with a tunable passband and two absorptive bands is presented. It is designed using two active FSSs, an absorptive FSS realized with tripole elements, and a lossless bandpass FSS achieved with ring slots. Both active FSSs embedded with varactors realize the shift of transmission frequency bands by controlling the bias voltage of the feed network. The working principle is briefly investigated according to an equivalent circuit model. A prototype is fabricated and measured to verify the simulated results, which show that a passband is tuned from 3 to 4.78 GHz between two absorptive bands, and the maximum band of |S11| < −10 dB covers from 2.2 to 7.96 GHz. |
| format | Article |
| id | doaj-art-5da4eeb69ef1450b9928aae1a775d58f |
| institution | Kabale University |
| issn | 1687-5877 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-5da4eeb69ef1450b9928aae1a775d58f2025-02-03T01:31:34ZengWileyInternational Journal of Antennas and Propagation1687-58772021-01-01202110.1155/2021/9766379A Varactor-Tunable Rasorber Using Tripole and Ring Slot ElementsQingxin Guo0Qian Chen1Jianxun Su2Zengrui Li3School of Information and Communication EngineeringSchool of Information and Communication EngineeringSchool of Information and Communication EngineeringSchool of Information and Communication EngineeringIn this study, a frequency-selective rasorber with a tunable passband and two absorptive bands is presented. It is designed using two active FSSs, an absorptive FSS realized with tripole elements, and a lossless bandpass FSS achieved with ring slots. Both active FSSs embedded with varactors realize the shift of transmission frequency bands by controlling the bias voltage of the feed network. The working principle is briefly investigated according to an equivalent circuit model. A prototype is fabricated and measured to verify the simulated results, which show that a passband is tuned from 3 to 4.78 GHz between two absorptive bands, and the maximum band of |S11| < −10 dB covers from 2.2 to 7.96 GHz.http://dx.doi.org/10.1155/2021/9766379 |
| spellingShingle | Qingxin Guo Qian Chen Jianxun Su Zengrui Li A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements International Journal of Antennas and Propagation |
| title | A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements |
| title_full | A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements |
| title_fullStr | A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements |
| title_full_unstemmed | A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements |
| title_short | A Varactor-Tunable Rasorber Using Tripole and Ring Slot Elements |
| title_sort | varactor tunable rasorber using tripole and ring slot elements |
| url | http://dx.doi.org/10.1155/2021/9766379 |
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