Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection
A microwave photonic mixer for up- and down-conversion based on dual parallel in-phase and quadrature (I/Q) modulators is proposed. Dual parallel I/Q modulators and 90-degree electrical hybrid couplers are used to obtain carrier-suppressed single-sideband modulation of radio fr...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2024-01-01
|
| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10375090/ |
| _version_ | 1797364352967245824 |
|---|---|
| author | Gai Shen Yue Zhou |
| author_facet | Gai Shen Yue Zhou |
| author_sort | Gai Shen |
| collection | DOAJ |
| description | A microwave photonic mixer for up- and down-conversion based on dual parallel in-phase and quadrature (I/Q) modulators is proposed. Dual parallel I/Q modulators and 90-degree electrical hybrid couplers are used to obtain carrier-suppressed single-sideband modulation of radio frequency (RF), intermediate frequency (IF), and local oscillator (LO) signals. The optical bandpass filter (OBPF) is employed to select the −1st-order or +1st-order sideband of the LO signal to realize up and down conversion. In the experiments, an IF frequency range of 5–17 GHz can be upconverted to an RF frequency range of 15–37 GHz, and an RF frequency range of 8–40 GHz can be downconverted to an IF frequency range of 2–5 GHz. The spurs suppression ratio exceeds 50 dB for up and down conversion. To the best of our knowledge, this is the highest reported spurs suppression in a broadband microwave photonic mixer. Moreover, the OBPF is also utilized to obtain an image rejection ratio (IRR) of 45.91 dB at an IF frequency of 4 GHz. To obtain a lower frequency of IF signal and a higher IRR, a Brillouin-assisted notch filter is applied to attenuate the image signal. In this way, an IRR of more than 60 dB can be obtained at an IF frequency of 2 GHz. |
| first_indexed | 2024-03-08T16:34:02Z |
| format | Article |
| id | doaj.art-301b80cd8a99450ea16f5ef2c59a8544 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-03-08T16:34:02Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-301b80cd8a99450ea16f5ef2c59a85442024-01-06T00:00:22ZengIEEEIEEE Photonics Journal1943-06552024-01-011611810.1109/JPHOT.2023.334770910375090Broadband Microwave Photonic Mixer With High Spurs Suppression and Image RejectionGai Shen0https://orcid.org/0009-0001-0507-9120Yue Zhou1https://orcid.org/0009-0001-4523-0008State Key Laboratory of Information Photonics and Optical Communications, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, ChinaA microwave photonic mixer for up- and down-conversion based on dual parallel in-phase and quadrature (I/Q) modulators is proposed. Dual parallel I/Q modulators and 90-degree electrical hybrid couplers are used to obtain carrier-suppressed single-sideband modulation of radio frequency (RF), intermediate frequency (IF), and local oscillator (LO) signals. The optical bandpass filter (OBPF) is employed to select the −1st-order or +1st-order sideband of the LO signal to realize up and down conversion. In the experiments, an IF frequency range of 5–17 GHz can be upconverted to an RF frequency range of 15–37 GHz, and an RF frequency range of 8–40 GHz can be downconverted to an IF frequency range of 2–5 GHz. The spurs suppression ratio exceeds 50 dB for up and down conversion. To the best of our knowledge, this is the highest reported spurs suppression in a broadband microwave photonic mixer. Moreover, the OBPF is also utilized to obtain an image rejection ratio (IRR) of 45.91 dB at an IF frequency of 4 GHz. To obtain a lower frequency of IF signal and a higher IRR, a Brillouin-assisted notch filter is applied to attenuate the image signal. In this way, an IRR of more than 60 dB can be obtained at an IF frequency of 2 GHz.https://ieeexplore.ieee.org/document/10375090/Frequency conversionimage rejection mixermicrowave photonicsstimulated Brillouin scattering (SBS) |
| spellingShingle | Gai Shen Yue Zhou Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection IEEE Photonics Journal Frequency conversion image rejection mixer microwave photonics stimulated Brillouin scattering (SBS) |
| title | Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection |
| title_full | Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection |
| title_fullStr | Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection |
| title_full_unstemmed | Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection |
| title_short | Broadband Microwave Photonic Mixer With High Spurs Suppression and Image Rejection |
| title_sort | broadband microwave photonic mixer with high spurs suppression and image rejection |
| topic | Frequency conversion image rejection mixer microwave photonics stimulated Brillouin scattering (SBS) |
| url | https://ieeexplore.ieee.org/document/10375090/ |
| work_keys_str_mv | AT gaishen broadbandmicrowavephotonicmixerwithhighspurssuppressionandimagerejection AT yuezhou broadbandmicrowavephotonicmixerwithhighspurssuppressionandimagerejection |