Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio
Frequency-selective surfaces (FSSs) are widely employed in antenna's radar cross-sectional reduction, which plays a key role in improving survivability and penetration ability of future military systems. In practical, dual-band bandpass FSSs with large band ratio (BR) are urgently needed for so...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/150874 |
| _version_ | 1826110756481925120 |
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| author | Li, Da Shen, Zhongxiang Li, Er-Ping |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Li, Da Shen, Zhongxiang Li, Er-Ping |
| author_sort | Li, Da |
| collection | NTU |
| description | Frequency-selective surfaces (FSSs) are widely employed in antenna's radar cross-sectional reduction, which plays a key role in improving survivability and penetration ability of future military systems. In practical, dual-band bandpass FSSs with large band ratio (BR) are urgently needed for some military equipment, such as homing head, that can detect both middle and far range targets. In this paper, a novel method for designing dual-band bandpass FSS with large BR is proposed. The method can provide a large BR response, by utilizing a spurious-free structure and combing resonant and nonresonant elements. The detailed analysis is presented with the aid of equivalent circuit model as well as closed-form equations to reveal the operating mechanism. A design example is simulated, fabricated, and then measured. Two excellent passbands are obtained with a large BR value of 15.3 in experiment. Moreover, a -10 dB fractional bandwidth of 164.3% is realized from 1.31 to 13.35 GHz, without observing any spurious transmission windows. In conclusion, our proposed method fills the gap of the existing dual-band FSSs to obtain a large BR value of more than 6 and could be a good guidance for designing the future multiband FSSs. |
| first_indexed | 2024-10-01T02:39:41Z |
| format | Journal Article |
| id | ntu-10356/150874 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:39:41Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1508742021-06-09T01:14:16Z Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio Li, Da Shen, Zhongxiang Li, Er-Ping School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Dual-band Response Frequency-selective Surface Frequency-selective surfaces (FSSs) are widely employed in antenna's radar cross-sectional reduction, which plays a key role in improving survivability and penetration ability of future military systems. In practical, dual-band bandpass FSSs with large band ratio (BR) are urgently needed for some military equipment, such as homing head, that can detect both middle and far range targets. In this paper, a novel method for designing dual-band bandpass FSS with large BR is proposed. The method can provide a large BR response, by utilizing a spurious-free structure and combing resonant and nonresonant elements. The detailed analysis is presented with the aid of equivalent circuit model as well as closed-form equations to reveal the operating mechanism. A design example is simulated, fabricated, and then measured. Two excellent passbands are obtained with a large BR value of 15.3 in experiment. Moreover, a -10 dB fractional bandwidth of 164.3% is realized from 1.31 to 13.35 GHz, without observing any spurious transmission windows. In conclusion, our proposed method fills the gap of the existing dual-band FSSs to obtain a large BR value of more than 6 and could be a good guidance for designing the future multiband FSSs. 2021-06-09T01:14:16Z 2021-06-09T01:14:16Z 2019 Journal Article Li, D., Shen, Z. & Li, E. (2019). Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio. IEEE Transactions On Antennas and Propagation, 67(2), 1065-1072. https://dx.doi.org/10.1109/TAP.2018.2882601 0018-926X 0000-0002-1107-6815 0000-0003-0110-7179 0000-0002-5006-7399 https://hdl.handle.net/10356/150874 10.1109/TAP.2018.2882601 2-s2.0-85058485501 2 67 1065 1072 en IEEE Transactions on Antennas and Propagation © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Dual-band Response Frequency-selective Surface Li, Da Shen, Zhongxiang Li, Er-Ping Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio |
| title | Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio |
| title_full | Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio |
| title_fullStr | Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio |
| title_full_unstemmed | Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio |
| title_short | Spurious-free dual-band bandpass frequency-selective surfaces with large band ratio |
| title_sort | spurious free dual band bandpass frequency selective surfaces with large band ratio |
| topic | Engineering::Electrical and electronic engineering Dual-band Response Frequency-selective Surface |
| url | https://hdl.handle.net/10356/150874 |
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