Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer
In this paper, a two-dimensional true time delay optical beamforming network (OBFN) has been proposed with sub partitioning capability for 3X3 phased array antenna (PAA) with operating frequency in X-Band. The architecture is based on raised cosine apodised chirp fiber Bragg grating (CFBG) and Mach-...
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IEEE
2021-01-01
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Online Access: | https://ieeexplore.ieee.org/document/9437833/ |
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author | Ritesh Kumar Sanjeev Kumar Raghuwanshi |
author_facet | Ritesh Kumar Sanjeev Kumar Raghuwanshi |
author_sort | Ritesh Kumar |
collection | DOAJ |
description | In this paper, a two-dimensional true time delay optical beamforming network (OBFN) has been proposed with sub partitioning capability for 3X3 phased array antenna (PAA) with operating frequency in X-Band. The architecture is based on raised cosine apodised chirp fiber Bragg grating (CFBG) and Mach-Zehnder delay interferometer (MZDI). Compared to unapodised CFBG, raised cosine apodization drastically reduces the ripple as well as sidelobes and gives a flat response in the passband of reflection spectrum. Multiwavelength optical signals with a wavelength difference of 0.3 nm are used to steer 10 GHz RF signal in elevation and azimuth direction. Further, broad angular control of beam radiation due to sub partitioned PAA is also demonstrated. The RF signal beam is steered in elevation at -62.2,-31.9, and-10.8 degrees, and in azimuth at 123.6 and 55.9 degrees. Theoretical analysis of the OBFN has been presented and validated with the experimental results. At the best of our knowledge, delay characteristics of raised cosine apodised CFBG have been theoretically explored for the first time with mathematical formulation and a comparative discussion is given with the measured data. |
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language | English |
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spelling | doaj.art-79788c057d434d28a739fc04a6aa21042022-12-21T22:33:15ZengIEEEIEEE Photonics Journal1943-06552021-01-0113311110.1109/JPHOT.2021.30821859437833Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay InterferometerRitesh Kumar0https://orcid.org/0000-0003-4423-0433Sanjeev Kumar Raghuwanshi1https://orcid.org/0000-0003-3820-2890Photonic Laboratory, Department of Electronics Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad, Jharkhand, IndiaPhotonic Laboratory, Department of Electronics Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad, Jharkhand, IndiaIn this paper, a two-dimensional true time delay optical beamforming network (OBFN) has been proposed with sub partitioning capability for 3X3 phased array antenna (PAA) with operating frequency in X-Band. The architecture is based on raised cosine apodised chirp fiber Bragg grating (CFBG) and Mach-Zehnder delay interferometer (MZDI). Compared to unapodised CFBG, raised cosine apodization drastically reduces the ripple as well as sidelobes and gives a flat response in the passband of reflection spectrum. Multiwavelength optical signals with a wavelength difference of 0.3 nm are used to steer 10 GHz RF signal in elevation and azimuth direction. Further, broad angular control of beam radiation due to sub partitioned PAA is also demonstrated. The RF signal beam is steered in elevation at -62.2,-31.9, and-10.8 degrees, and in azimuth at 123.6 and 55.9 degrees. Theoretical analysis of the OBFN has been presented and validated with the experimental results. At the best of our knowledge, delay characteristics of raised cosine apodised CFBG have been theoretically explored for the first time with mathematical formulation and a comparative discussion is given with the measured data.https://ieeexplore.ieee.org/document/9437833/Chirped fiber Bragg gratingMach-Zehnder interferometeroptical beamforming networktrue-time delaytwo dimensional angular control |
spellingShingle | Ritesh Kumar Sanjeev Kumar Raghuwanshi Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer IEEE Photonics Journal Chirped fiber Bragg grating Mach-Zehnder interferometer optical beamforming network true-time delay two dimensional angular control |
title | Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer |
title_full | Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer |
title_fullStr | Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer |
title_full_unstemmed | Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer |
title_short | Efficient 2D Optical Beamforming Network With Sub Partitioning Capability Based on Raised Cosine Chirped Fiber Grating and Mach-Zehnder Delay Interferometer |
title_sort | efficient 2d optical beamforming network with sub partitioning capability based on raised cosine chirped fiber grating and mach zehnder delay interferometer |
topic | Chirped fiber Bragg grating Mach-Zehnder interferometer optical beamforming network true-time delay two dimensional angular control |
url | https://ieeexplore.ieee.org/document/9437833/ |
work_keys_str_mv | AT riteshkumar efficient2dopticalbeamformingnetworkwithsubpartitioningcapabilitybasedonraisedcosinechirpedfibergratingandmachzehnderdelayinterferometer AT sanjeevkumarraghuwanshi efficient2dopticalbeamformingnetworkwithsubpartitioningcapabilitybasedonraisedcosinechirpedfibergratingandmachzehnderdelayinterferometer |