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Optimizing the Design of a Silicon-Photonics Interleaver Circuit 硅-光子交织电路的优化设计
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971168
Hany Mahrous, M. Fedawy, Mira Abboud, D. Selim, Michael Gad
{"title":"Optimizing the Design of a Silicon-Photonics Interleaver Circuit","authors":"Hany Mahrous, M. Fedawy, Mira Abboud, D. Selim, Michael Gad","doi":"10.1109/NRSC57219.2022.9971168","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971168","url":null,"abstract":"In this work, the genetic algorithm is applied to optimize the design of a silicon-photonics based interleaver/deinterleaver circuit. The interleaver circuit is used to mix two data streams into one physical channel while the deinterleaver splits them into two different channels. The circuit satisfies the wavelength division multiplexing (WDM) specifications, including a channel 3 dB-bandwidth of ±10 GHz around the maximum transmission, a channel free spectral range of 100 GHz, channel spacing of 50 GHz, crosstalk of −23 dB, and a maximum dispersion of 30 ps/nm. The circuit operates at the telecommunication wavelength of 1550 nm. The genetic algorithm is employed to achieve the best coupling coefficients between the circuit components. The developed algorithm proves very efficient as it provides the design parameters required to achieve all of the WDM requirements in a very short time compared to the previously presented design approach, which relied on excessive numerical calculations besides investigating the circuit transmission in the Z domain.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133570227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of Chipless Radio Frequency Identification Techniques Tags 无芯片射频识别技术标签的评估
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971222
Sherif A. Mohamed, H. H. Abdullah, Ayman M. Hassan, I. Hafez
{"title":"Evaluation of Chipless Radio Frequency Identification Techniques Tags","authors":"Sherif A. Mohamed, H. H. Abdullah, Ayman M. Hassan, I. Hafez","doi":"10.1109/NRSC57219.2022.9971222","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971222","url":null,"abstract":"The RFID technology is a supplementary technology that can be applied to different applications. By analyzing past work that has a focus on chipless tag design, most of the work in the literature aims to improve the design methodologies to attain the best orientation independence and coding capacity by lowering tag size and adding more resonators (more bits) at the same size. This work introduces a novel Slit Gear C-Shaped slot ring resonator. The proposed design has many features such as its low-cost, planar, completely printable, dual-polarized, orientation independent, symmetric structure, single layer, and small Tag of chipless RFID. The suggested Prototype is made up of multiple overlapping gears-shaped circular patch slot resonators and has a radius of 7.4 mm. The slot corrugation using the gear-shaped slots miniaturized the overall size, keeping the tag’s polarization-independent features. To enhance the detection range, the designed tag is repeated in an array of different sizes to guarantee good signal detection. This tag’s single-layer properties make it a good choice for conductive ink printing within the range of 3 to 35 GHz. The tags are fabricated and measured in the lab where good results are obtained.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127309131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance Analysis of OMA and NOMA Access Techniques OMA和NOMA接入技术的性能分析
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971343
Amir Khairat, I. Ali
{"title":"Performance Analysis of OMA and NOMA Access Techniques","authors":"Amir Khairat, I. Ali","doi":"10.1109/NRSC57219.2022.9971343","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971343","url":null,"abstract":"Wireless mobile communication networks are continually being enhanced in order to fulfill the requirements of users that make use of this technology. As a result, many different technologies have prepared the groundwork for the development of new wireless mobile communication systems in advance of the possible launch of new generations. The demand for technologies that make everyday tasks easier for users has been a driving force behind the creation of highly advanced wireless communication networks, the likes of which had previously only been imagined in science fiction. As a result of recent developments, the society in which we currently reside can be described as an information society. The advancement of wireless mobile communication systems relies on the incorporation of a variety of different technologies. One of these is the multiple access technique that is used for each generation, and as a result, this research looks at a variety of various multiple access techniques. Orthogonal multiple access technique (OMA) and non-orthogonal multiple access technique (NOMA) are reviewed and compared for the next generation of wireless mobile communication systems. In addition, a comparison between different generations of wireless mobile networks is presented. The two categories of the multiple access techniques are reviewed and compared for the next generation of wireless mobile communication systems.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129530050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wide-Angle Beam Scanning Transmit-array Fed Using Ridge-gap Waveguide DRA for 60 GHz Wireless Communications 60 GHz无线通信中基于脊隙波导DRA的广角波束扫描发射阵列馈源
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971247
Mohamed A. Asal, S. M. Gaber, S. Zainud-Deen, H. Malhat
{"title":"Wide-Angle Beam Scanning Transmit-array Fed Using Ridge-gap Waveguide DRA for 60 GHz Wireless Communications","authors":"Mohamed A. Asal, S. M. Gaber, S. Zainud-Deen, H. Malhat","doi":"10.1109/NRSC57219.2022.9971247","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971247","url":null,"abstract":"This paper introduces a planar Transmit-array illuminated by a compact dielectric resonator antenna (DRA) for 60 GHz communications. The unit-cell is a compact square patch surrounded by square split-ring printed back-to-back to dielectric substrate with drilled cylindrical holes. The unit-cell dimensions are tuned for 60 GHz transmission phase range variation of 360o with a transmission magnitude of −4 dB. The phase is controlled via changing the patch length. 13×13 unit-cells Transmit-array are designed for broadside radiation with high gain. The feeding element is square DRA excited by slot-coupled ridge-gap waveguide (RGW) cavity for high gain and compact size. The radiation characteristics of the Transmit-array fed with RGW-DRA is compared with using a conventional horn antenna as a feeder. Wide-angle beam scanning from −500 to+ 500 is achieved via changing the phase destitution over the Transmit-array aperture. The peak gain is 15.17 dBi with half-power beamwidth 6.8 degrees.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127538760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applicability of Mode Division in Far Field Radiation of Orbital Angular Momentum Electromagnetic Waves 模式划分在轨道角动量电磁波远场辐射中的适用性
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971389
A. Attiya, W. Hassan
{"title":"Applicability of Mode Division in Far Field Radiation of Orbital Angular Momentum Electromagnetic Waves","authors":"A. Attiya, W. Hassan","doi":"10.1109/NRSC57219.2022.9971389","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971389","url":null,"abstract":"Electromagnetic waves with orbital angular momentum (OAM) with different are found to be orthogonal in quasi near field region. This property makes OAM to be useful for mode division and multiplexing. In this paper, the orthogonality property of OAM is studied in the far field. A simple analytical formulation based on a circular array of arbitrary oriented infinitesimal dipoles is used to model the source and the receiver of OAM waves. This model is used to study the received signal radiation pattern between different configurations of OAM sources and receivers. This study shows the applicability of using OAM mode division in far field. The received signal radiation patterns between similar configurations of OAM sources and receivers are also investigated. This study shows the applicability of OAM modes to be used for spatial division and multiplexing too.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132925820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A 0.95-to-5.28 GHz Fast Locking and Power Efficient Digital Phase Locked Loop 一种0.95 ~ 5.28 GHz快速锁相节能数字锁相环
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971314
Reham I.A. Mohammed, M. Abdelghany, A. A. Khalaf, H. Hamed
{"title":"A 0.95-to-5.28 GHz Fast Locking and Power Efficient Digital Phase Locked Loop","authors":"Reham I.A. Mohammed, M. Abdelghany, A. A. Khalaf, H. Hamed","doi":"10.1109/NRSC57219.2022.9971314","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971314","url":null,"abstract":"Computers, radios, televisions, and mobile phones are only a few examples of devices that depend on phase-locked loops (PLLs). PLL development is an extraordinarily complex process as it involves different parameters, and it is difficult to optimize all these parameters to get better performance. Depending on the application in which the PLL is used, we tend to improve some issues at the expense of others. The proposed Digital PLL (DPLL) is designed with a current-controlled ring oscillator (CCRO) which consumes low power and has a small locking time and operates over a wide range compared to other Digitally Controlled Oscillators (DCOs). The proposed architecture is implemented in a TSMC 65 nm CMOS process. It can generate an output frequency from 0.95 to 5.28 GHz and operates across a supply voltage range of 0.6 V to 1.2 V. At 0.9 V supply voltage the output frequency is about 3.091 GHz and the PLL consumes 50.3 μw with locking time 79.3 ns.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132422914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Implementation of Deep Learning in Beamforming for 5G MIMO Systems 5G MIMO系统波束形成中深度学习的实现
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971327
Khaled Aljohani, I. Elshafiey, A. Al-Sanie
{"title":"Implementation of Deep Learning in Beamforming for 5G MIMO Systems","authors":"Khaled Aljohani, I. Elshafiey, A. Al-Sanie","doi":"10.1109/NRSC57219.2022.9971327","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971327","url":null,"abstract":"The fifth generation 5G communication systems depend on beamforming and massive MIMO techniques to enhance the performance. In massive MIMO architecture hybrid beamforming is typically adopted to reduce the required number of RF chains. We present a technique based on deep learning to simplify the process of estimating beamforming weights. First, a fading communication channel model is developed, and the generated data is used to train convolution neural networks. The trained networks are used to predict beamforming weights based on estimated channel data. Results are presented of the implementation of deep learning in digital as well as hybrid beamforming. Presented results reveal the potential of deep learning in reducing the complexity of estimating beamforming weights. The results also present a comparison of the performance the communication system depending on deep learning and conventional beamforming techniques.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130001696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Analysis and Design of Substrate Integrated Waveguide Bandpass Filter for 5G Applications 5G基板集成波导带通滤波器的分析与设计
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971428
Mai A. Salah, Eman M. Eldesouki, W. El-Deeb, A. Attiya
{"title":"Analysis and Design of Substrate Integrated Waveguide Bandpass Filter for 5G Applications","authors":"Mai A. Salah, Eman M. Eldesouki, W. El-Deeb, A. Attiya","doi":"10.1109/NRSC57219.2022.9971428","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971428","url":null,"abstract":"This paper presents the analysis and design of a fourth-order substrate integrated waveguide (SIW) bandpass filter. The designed bandpass filter operates in the frequency range from 3.7 GHz to 3.98 GHz which covers the New C-band 5G network with fractional bandwidth (FBW) of 28% and centered at 3.84 GHz. The design procedures of bandpass characteristics are summarized by calculating the external quality factor and the coupling coefficients from the physical structure. The presented design is based on three direct inductive coupling between four arranged SIW cavity resonators and only one cross-coupling between the resonators at the input and output ports. This fourth-order bandpass filter is synthesized, designed, fabricated, and measured. Good agreement is achieved between the measured and the simulated results.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130947554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Addressing the Issues of Operation Safety and Reusability of Nuclear Reactor I&C Systems through FPGA Designs 通过FPGA设计解决核反应堆I&C系统的运行安全性和可重用性问题
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971392
I. Mahmoud
{"title":"Addressing the Issues of Operation Safety and Reusability of Nuclear Reactor I&C Systems through FPGA Designs","authors":"I. Mahmoud","doi":"10.1109/NRSC57219.2022.9971392","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971392","url":null,"abstract":"This paper describes the use of Field Programmable Gate Arrays (FPGAs) devices in Nuclear Reactors Instruments. The design, simulation, implementation and test of two examples are included. The first is a reactor control rod position sensing electronic unit intended as a replacement of the outdated Russian type in old power reactors. The second is a design to implement the Trip Unit of a Reactor Protection System (RPS) using an FPGA. Instead of the traditional embedded Microprocessor based interface design method, a tailor-made FPGA based circuit is built to substitute the Trip Unit (TU) existing in research reactors. The RPS is responsible for the initiation signals that trigger the protective actions in case of anticipated operational occurrences or accident conditions during the operational modes of the reactor. The proposed designed circuit replaces the Single Board Computer which have the embedded S/W program of the TU providing the same integrated H/W & S/W functions implemented in FPGA Chip housed in a printed circuit board, which uses the same specifications of existing system bus (STD32 bus). FPGA implementation of both TU and STD32 Bus as well as position sensing unit in VHDL can address the issues of operation safety and system components reusability.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114351987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the relation between Cosmic Masers and Massive Star-Forming Regions 论宇宙脉泽与大质量恒星形成区的关系
2022 39th National Radio Science Conference (NRSC) Pub Date : 2022-11-29 DOI: 10.1109/NRSC57219.2022.9971262
Darwish S. Mohamed
{"title":"On the relation between Cosmic Masers and Massive Star-Forming Regions","authors":"Darwish S. Mohamed","doi":"10.1109/NRSC57219.2022.9971262","DOIUrl":"https://doi.org/10.1109/NRSC57219.2022.9971262","url":null,"abstract":"MASER (Microwave Amplification by Stimulated Emission of Radiation) emission from cosmic molecules is believed to play a vital role in understanding the early evolutionary stages of the massive star formation. Their residence in the dusty molecular envelope enables us to study the kinematics, physical conditions of different morphology and line-of-sight magnetic field toward the proto-stellar objects. A brief introduction to the history of cosmic maser discovery and its general properties is given. The recent observational and theoretical advances of interstellar MASER as well as the proposed chronology scheme in massive star forming regions are reviewed.","PeriodicalId":156721,"journal":{"name":"2022 39th National Radio Science Conference (NRSC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121327490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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