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An 8-bit 3.5 GS/s Current Steering DAC for Wireless Applications 用于无线应用的8位3.5 GS/s电流转向DAC
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066935
Mohamed Taha, Khaled M. Morsi, Ahmed A. Naguib
{"title":"An 8-bit 3.5 GS/s Current Steering DAC for Wireless Applications","authors":"Mohamed Taha, Khaled M. Morsi, Ahmed A. Naguib","doi":"10.1109/IMAS55807.2023.10066935","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066935","url":null,"abstract":"A segmented 8-bit 3.54 GS/s current-steering digital-to-analog converter (CSDAC) designed and simulated in 130 nm CMOS technology. The spurious-free dynamic range (SFDR) that represents the CSDAC linearity is ranged from 65.7 dB at 11 MHz signal frequency to 54 dB at 1.770 GHz with an effective number of bits (ENOB) equals to 7.97 bits at a low frequency while degraded across the input frequency to reach 7.67 bit at 1.77 GHz.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133421319","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
Polarization Reconfigurable Intelligent Metasurface for X- & Ku-band Applications in Communications 偏振可重构智能元表面在X波段和ku波段通信中的应用
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066931
M. Sumaid, Ahsaan Gul Hassan, N. Shoaib, S. Nikolaou
{"title":"Polarization Reconfigurable Intelligent Metasurface for X- & Ku-band Applications in Communications","authors":"M. Sumaid, Ahsaan Gul Hassan, N. Shoaib, S. Nikolaou","doi":"10.1109/IMAS55807.2023.10066931","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066931","url":null,"abstract":"This article presents a polarization reconfigurable intelligent metasurface (PRIM) to realize on demand switchable cross polarization conversion and circular polarization conversion by linearly incident electromagnetic (EM) wave through globally tuned PIN diode models. The unit cell structure of PRIM consists of I-Shaped structure supported with split circle and biasing lines to control the states of voltage-controlled PIN diodes. The modeled PIN diodes are incorporated in between split circle and on the edges of unit cells. The ON/OFF states of these PIN diodes can switch the polarization state of a wave between linear and circular polarizations. The novel approach ensures the provision of electronically controlled, ultra-wide band (UWB) reflective circular-polarization in one state and cross-polarization in the other, over same functional frequency band of X- and Ku-band. The results demonstrate that in open/off state the metasurface presents cross polarization ranging from 9 GHz to 19 GHz, while in short/on state metasurface presents circular polarization ranging from 10 GHz to 22 GHz. The designed metasurface is fabricated using hardwire-bond technique to replicate functionality of diodes and tested to validate the performance of PRIM.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125027165","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
Design of a monopulse array antenna with low sidelobe 低旁瓣单脉冲阵列天线的设计
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066926
Le Nhu Thai, L. Anh, Nguyen Hoai Son, Le Thi Hang
{"title":"Design of a monopulse array antenna with low sidelobe","authors":"Le Nhu Thai, L. Anh, Nguyen Hoai Son, Le Thi Hang","doi":"10.1109/IMAS55807.2023.10066926","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066926","url":null,"abstract":"This paper presents the structure of an unequal power division system to achieve a low sidelobe level and applies the power division system with monopulse comparator and two types of Vivaldi and patch antenna elements to obtain an antenna array for monopulse tracking application. The resulting SLL of radiation pattern of an array antenna using a Taylor divider ratio unequal power divider system (SLL= −25dB, n=6) with a Vivaldi antenna element at the center frequency is: −24.1 dB (E plane), −21 dB (H plane), and with patch antenna element is: −22 dB (E plane), −24.4 dB (H plane).","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123231055","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
RCS Reduction Using Reconfigurable Chessboard Coding Plasma-Based Dielectric Resonator Structure 利用可重构棋盘编码等离子体介电谐振器结构降低RCS
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066941
S. Zainud-Deen, H. Malhat, A. S. Zainud-Deen, M. M. Badawy
{"title":"RCS Reduction Using Reconfigurable Chessboard Coding Plasma-Based Dielectric Resonator Structure","authors":"S. Zainud-Deen, H. Malhat, A. S. Zainud-Deen, M. M. Badawy","doi":"10.1109/IMAS55807.2023.10066941","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066941","url":null,"abstract":"In this paper, reconfigurable chessboard coding plasma-based dielectric resonator structure for radar cross section reduction is investigated. The radar cross section (RCS) reduction is essential in military applications. The metallic conductor surface is covered with plasma-based dielectric resonator (DRA) unit-cells arranged in chessboard configuration. The plasma ionization voltage values are tuned to reflect the electromagnetic wave with phase shift of 180° and equal amplitudes. The phase 0° state represents the logic “0” while the phase 180° state represents the logic “1”. The chessboard arrangement consists of super-cells with 0/1 logic states. The RCS is reduced over a wide angle range reduction with −18 dBm2 at the broadside direction and below −32 dBm2 over the angular range from −90° to 90° according to the super-cell size. The non-uniform allocation of unit-cells in the super-cell chessboard arrangement is investigated. The RCS reduction bandwidth extended from 8.5 GHz to 9.65 GHz.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131283362","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
T-ray Photoconductive Antenna Design for Biomedical Imaging Applications 生物医学成像应用的t射线光导天线设计
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066897
Ruobin Han, Abdoalbaset Abohmra, Shohreh Nourinovin, H. Abbas, Joao Ponciano, Lingfeng Shi, A. Alomainy, M. Imran, Q. Abbasi
{"title":"T-ray Photoconductive Antenna Design for Biomedical Imaging Applications","authors":"Ruobin Han, Abdoalbaset Abohmra, Shohreh Nourinovin, H. Abbas, Joao Ponciano, Lingfeng Shi, A. Alomainy, M. Imran, Q. Abbasi","doi":"10.1109/IMAS55807.2023.10066897","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066897","url":null,"abstract":"Photoconductive antennas are promising sources of terahertz (THz) radiation, which is frequently used to investigate and analyze biological organisms. These compact antennas make it possible to generate ultra-broadband pulses and continuously tunable THz transmissions at room temperature without the need for high-power laser sources. Here, a high efficiency spiral THz photoconductive antenna (PCA) is proposed. The design consists of a gallium arsenide (GaAs) substrate and a silicon (Si) hyper hemispherical lens. The proposed design has a radiation efficiency of up to 92.4% between 2.5 and 3.4 THz, with a directivity up to 17.6 dBi. With several current PCA designs as references, comparisons and analyses are made, indicating that the proposed work shows higher efficiency and radiation directivity at a wider band. The design of electrodes and hyper hemispherical lens are demonstrated in the paper. Simulations of contrast designs are shown as well, illustrating a 25%-40% efficiency and 12.8 dB gain increase by this design. Due to its performance and small structure, this antenna is ideal for T-ray medical imaging.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134240523","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
Temperature-Controlled Microwave Heating System 温控微波加热系统
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066920
Saleh Alfawaz, Ibrahim N. Alquaydheb, Sara Ghayouraneh, Amirreza Ghadimi Avval, S. El-Ghazaly
{"title":"Temperature-Controlled Microwave Heating System","authors":"Saleh Alfawaz, Ibrahim N. Alquaydheb, Sara Ghayouraneh, Amirreza Ghadimi Avval, S. El-Ghazaly","doi":"10.1109/IMAS55807.2023.10066920","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066920","url":null,"abstract":"In this paper, a microwave heating system controlled by temperature is presented. Each system component is described, and the system's design is provided. The system uses a solid-state microwave generator as the source. The power delivery method is also discussed, and the waveguide environment is shown. An infrared temperature sensor is used to collect the temperature of the sample which is then fed to a python program to control the operation of the microwave generator. A study of the temperature profile for three different power levels is shown with and without using the control system. Using a preset temperature range, the system has proven the ability to keep the sample in the desired temperature range","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116341337","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
Microwave-Based Technique for Measuring Glucose Levels in Aqueous Solutions 测量水溶液中葡萄糖水平的微波技术
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066913
Yaqub Mahnashi, K. Qureshi, A. Al-Shehri, Hussein Attia
{"title":"Microwave-Based Technique for Measuring Glucose Levels in Aqueous Solutions","authors":"Yaqub Mahnashi, K. Qureshi, A. Al-Shehri, Hussein Attia","doi":"10.1109/IMAS55807.2023.10066913","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066913","url":null,"abstract":"This study describes a non-invasive method for measuring the glucose level in aqueous solutions using a microwave-based system. The test sample (i.e., glucose-water solution) is subjected to a microwave signal. Two RF microstrip patch antennas manufactured using an FR-4 substrate and resonating at 5.7 GHz are used to create the suggested glucose sensor. The glucose-water solution is placed between the two antennas. An electronic conditioning circuit (i.e., analog readout circuit) is used to condition the received signal. A novel method to measure the amount of glucose is to observe the variation in the DC output voltage on the receiver side. Utilizing glucose-water testing samples, the technique is experimentally validated. For a concentration range of 0–5000 mg/dL, the experimental findings support the relationship between glucose concentration and the DC output voltage.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"342 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116452620","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
Tunable Non-Reciprocal Phase Shifter and Spin-Coated Ferrites for Adaptive Microwave Circuits 用于自适应微波电路的可调谐非互易移相器和自旋涂覆铁氧体
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066899
Karthik Srinivasan, A. El-Ghazaly
{"title":"Tunable Non-Reciprocal Phase Shifter and Spin-Coated Ferrites for Adaptive Microwave Circuits","authors":"Karthik Srinivasan, A. El-Ghazaly","doi":"10.1109/IMAS55807.2023.10066899","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066899","url":null,"abstract":"Tunable non-reciprocal components with ferrites that can be integrated using a foundry suitable process are key to achieving low-power adaptive microwave circuits. The current state-of-the-art still relies on electrical tuning or resistive absorbers to facilitate unidirectional propagation. Here, we demonstrate a novel process for spin-coating thick films of ferrites without the complexities of vacuum processes or high-temperature annealing. Composites of yttrium iron garnet (YIG) nanoparticles in a matrix spin-on-glass are spin-coated on silicon substrates, and magnetic properties comparable to bulk YIG are obtained in films exceeding 30 microns. We also propose a design for tunable phase shifter based on periodically serrated coplanar waveguide with a YIG cladding. A non-reciprocal phase difference of 20 - 60 degrees is obtained over a tunable band of 550 MHz between 3.85 - 4.4 GHz from a tuning magnetic field of 8 - 40 kA/m.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"103 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134286966","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
Highly Sensitive Terahertz Electromagnetically Induced Transparency-like Metasurface for Refractive Index Biosensing 用于折射率生物传感的高灵敏度太赫兹电磁诱导透明类超表面
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066946
Tomas Pires, Shohreh Nourinovin, H. Abbas, M. Imran, A. Alomainy, Q. Abbasi
{"title":"Highly Sensitive Terahertz Electromagnetically Induced Transparency-like Metasurface for Refractive Index Biosensing","authors":"Tomas Pires, Shohreh Nourinovin, H. Abbas, M. Imran, A. Alomainy, Q. Abbasi","doi":"10.1109/IMAS55807.2023.10066946","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066946","url":null,"abstract":"In this research, we presented an electromagnetically induced transparency-like (EIT-like) metasurface. The structure is composed of pairs of L-shaped resonators, and by increasing the asymmetry between the coupled resonators, the dark mode has been excited with a transparency peak at 2.84 THz. The transmission spectra based on various asymmetry degree shows the intensifying trend of EIT-like resonance. The distribution of the electromagnetic field and the surface current were also examined to demonstrate the dark mode excitation. The sensing performance of the biosensor was studied based on various refractive index and thicknesses of the sample, and a total theoretical sensitivity of 800 GHZ/RIU based on a narrow line width of 230 GHz was achieved. The results also were compared with similar research works and proved a massive enhancement in sensitivity and Q-factor. The proposed structure can be served as an ultra-sensitive, inexpensive, and label-free biosensor for applications including biological sensing.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130587702","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
Fully Integrable BiCMOS Classical Rat-Race Coupler Based on Coplanar Striplines 基于共面带状线的完全可积BiCMOS经典鼠族耦合器
2023 International Microwave and Antenna Symposium (IMAS) Pub Date : 2023-02-07 DOI: 10.1109/IMAS55807.2023.10066879
Sherif R. Zahran, L. Boccia, F. Podevin, G. Amendola, P. Ferrari
{"title":"Fully Integrable BiCMOS Classical Rat-Race Coupler Based on Coplanar Striplines","authors":"Sherif R. Zahran, L. Boccia, F. Podevin, G. Amendola, P. Ferrari","doi":"10.1109/IMAS55807.2023.10066879","DOIUrl":"https://doi.org/10.1109/IMAS55807.2023.10066879","url":null,"abstract":"In this paper, a classical rat-race coupler based on coplanar stripline is presented. It was built using BiCMOS 55nm technology. Parametrical analysis targeting the position of additive compulsory dummies from selected high quality coplanar stripline is carried out. Two versions of the rat-race couplers are compared: without and with metallic dummies. Simulation results show that isolation and reflection coefficients are preserved under 20 dB. With dummies considered, insertion loss value is 4.2 dB at 118 GHz. With the addition of metallic dummies coupler performance is down shifted in frequency with value of 2 GHz. Maximum amplitude imbalance is 0.4 dB reported at 140 GHz while phase imbalance difference between both cases doesn't exceed 3.1° for the whole bandwidth of interest.","PeriodicalId":246624,"journal":{"name":"2023 International Microwave and Antenna Symposium (IMAS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133132175","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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