RF Frequency Selective Switch by Multiple PMIM Conversions
Nowadays, broadband and multi-channel radio frequency (RF) processing has been widely used in communication, radar, countermeasure, and other applications. At present, multiple-input and multiple-output (MIMO)-oriented microwave photonic signal processing technology is relatively scarce, so this pap...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2472 |
| _version_ | 1797622569599238144 |
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| author | Wenhui Hao Yi Peng Shaohua Wang Xia Liu |
| author_facet | Wenhui Hao Yi Peng Shaohua Wang Xia Liu |
| author_sort | Wenhui Hao |
| collection | DOAJ |
| description | Nowadays, broadband and multi-channel radio frequency (RF) processing has been widely used in communication, radar, countermeasure, and other applications. At present, multiple-input and multiple-output (MIMO)-oriented microwave photonic signal processing technology is relatively scarce, so this paper proposes an RF frequency selective switch (FSS) based on multiple phase modulation to intensity modulation (PMIM) conversions. PMIM conversion has been used in narrowband microwave photonic filtering in the past. We extend it to a wideband and arbitrarily reconfigurable RF spectrum processing unit through an optical frequency comb and periodic optical filter. Although we use the incoherent combination of a multi-wavelength light source, we can obtain any frequency response including rectangles only by using all positive tap coefficients. Using an optical wavelength selective switch (WSS), we obtain RF FSS, and the spectral resolution of RF FSS is much better than that of optical WSS, which is improved by more than two orders of magnitude. The above principles, including single-channel reconfigurable filtering and multi-channel RF FSS, are verified by experiments. Our technology provides a stable solution for future RF MIMO signal processing. |
| first_indexed | 2024-03-11T09:12:09Z |
| format | Article |
| id | doaj.art-8ba9360d086a4da9aa73bedc2b837c5a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:12:09Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-8ba9360d086a4da9aa73bedc2b837c5a2023-11-16T18:56:12ZengMDPI AGApplied Sciences2076-34172023-02-01134247210.3390/app13042472RF Frequency Selective Switch by Multiple PMIM ConversionsWenhui Hao0Yi Peng1Shaohua Wang2Xia Liu3China Academy of Electronics and Information Technology, Beijing 100041, ChinaChina Academy of Electronics and Information Technology, Beijing 100041, ChinaChina Academy of Electronics and Information Technology, Beijing 100041, ChinaSchool of Physics and Electronic Information, Yantai University, Yantai 264005, ChinaNowadays, broadband and multi-channel radio frequency (RF) processing has been widely used in communication, radar, countermeasure, and other applications. At present, multiple-input and multiple-output (MIMO)-oriented microwave photonic signal processing technology is relatively scarce, so this paper proposes an RF frequency selective switch (FSS) based on multiple phase modulation to intensity modulation (PMIM) conversions. PMIM conversion has been used in narrowband microwave photonic filtering in the past. We extend it to a wideband and arbitrarily reconfigurable RF spectrum processing unit through an optical frequency comb and periodic optical filter. Although we use the incoherent combination of a multi-wavelength light source, we can obtain any frequency response including rectangles only by using all positive tap coefficients. Using an optical wavelength selective switch (WSS), we obtain RF FSS, and the spectral resolution of RF FSS is much better than that of optical WSS, which is improved by more than two orders of magnitude. The above principles, including single-channel reconfigurable filtering and multi-channel RF FSS, are verified by experiments. Our technology provides a stable solution for future RF MIMO signal processing.https://www.mdpi.com/2076-3417/13/4/2472frequency selective switchphase modulation to intensity modulationoptical frequency combwavelength selective switch |
| spellingShingle | Wenhui Hao Yi Peng Shaohua Wang Xia Liu RF Frequency Selective Switch by Multiple PMIM Conversions Applied Sciences frequency selective switch phase modulation to intensity modulation optical frequency comb wavelength selective switch |
| title | RF Frequency Selective Switch by Multiple PMIM Conversions |
| title_full | RF Frequency Selective Switch by Multiple PMIM Conversions |
| title_fullStr | RF Frequency Selective Switch by Multiple PMIM Conversions |
| title_full_unstemmed | RF Frequency Selective Switch by Multiple PMIM Conversions |
| title_short | RF Frequency Selective Switch by Multiple PMIM Conversions |
| title_sort | rf frequency selective switch by multiple pmim conversions |
| topic | frequency selective switch phase modulation to intensity modulation optical frequency comb wavelength selective switch |
| url | https://www.mdpi.com/2076-3417/13/4/2472 |
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