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2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)最新文献

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A Novel Compact Tri-Band Impedance Matching Network with Enhanced Frequency Ratios 一种新型的增强频率比的紧凑型三带阻抗匹配网络
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-11 DOI: 10.1109/IMARC.2017.8449680
D. Banerjee, A. Saxena, M. Hashmi
{"title":"A Novel Compact Tri-Band Impedance Matching Network with Enhanced Frequency Ratios","authors":"D. Banerjee, A. Saxena, M. Hashmi","doi":"10.1109/IMARC.2017.8449680","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449680","url":null,"abstract":"In this paper, a novel design of a tri-band impedance matching network has been reported. The specialty of the design lies in its compact size and its ability to operate at elevated frequency ratios, extending 7.5 and beyond. A newly introduced concept of a common frequency has been used. The core of the proposed design consists of a cascade of two L-section dual band transformers. Linking between them for tri-band operation, has been done using the concept of a common frequency. A prototype has been fabricated on RO5880 substrate and tested at the three commercial frequencies of 1.8 GHz (GSM), 2.4 GHz (WiFi/Bluetooth) and 5.8 GHz (WiFi LTE). The measured results are in good agreement with the simulations.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133367854","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
A Miniaturized Three-Stage Dual-Frequency Matching Network 小型化的三级双频匹配网络
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-11 DOI: 10.1109/IMARC.2017.8449666
D. Rano, D. Banerjee, M. Hashmi
{"title":"A Miniaturized Three-Stage Dual-Frequency Matching Network","authors":"D. Rano, D. Banerjee, M. Hashmi","doi":"10.1109/IMARC.2017.8449666","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449666","url":null,"abstract":"In this paper, design of a miniaturized 3-stage impedance matching network capable of providing good match at two Wi-Fi frequencies of 2.4GHz and 5.8GHz is presented. The proposed technique can provide matching between complex loads and real source at the two chosen frequencies. This technique is able to reduce the circuit size by 50% and 35% when compared to the state-of-the-art 3-stage dual-band impedance matching network at the frequencies of 2.4GHz and 5.8GHz respectively. In addition, the technique can inherently provide wideband matching at both the identified frequencies. For the two chosen frequencies, the increase in bandwidth is 23% and 77% respectively. A prototype developed, on FR4 substrate, provides good agreement between the simulated and measured results.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128627889","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: 3
Terahertz Instruments for CubeSats 立方体卫星的太赫兹仪器
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-11 DOI: 10.1109/IMARC.2017.8449669
G. Chattopadhyay
{"title":"Terahertz Instruments for CubeSats","authors":"G. Chattopadhyay","doi":"10.1109/IMARC.2017.8449669","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449669","url":null,"abstract":"We have been developing terahertz high resolution spectrometers and radiometers on CubeSat platforms for astrophysics, planetary science, and Earth science applications. We are also developing millimeter-wave communications systems on CubeSat platform to provide communication link during entry descent-landing (EDL) phase of Mars and other planetary missions. In this paper, we present an overview of the state of the millimeter-wave and terahertz instrumentation development for CubeSat platforms. We discuss the design and implementation challenges for these instrument developments. We also look into innovative packaging solutions, antenna technology, and lowpower backend options for these instruments. We show that CubeSats and SmallSats will play a key role in future scientific space missions and also they will find increasing applications in commercial communication and other endeavors.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116516359","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: 4
Efficiency Enhancement in Delta-Sigma Modulator Based Transmitter Using Level Transformation 利用电平变换提高δ - sigma调制器发射机的效率
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8449697
Nishant Kumar, K. Rawat
{"title":"Efficiency Enhancement in Delta-Sigma Modulator Based Transmitter Using Level Transformation","authors":"Nishant Kumar, K. Rawat","doi":"10.1109/IMARC.2017.8449697","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449697","url":null,"abstract":"This paper proposes a new architecture of delta-sigma modulator (DSM) based transmitter for addressing the key limitation of multi-level DSM. The performance of multi-level DSM deteriorates at the RF amplification stage due to increase in peak to average power ratio (PAPR) of quantized signal as the number of quantization level increases. In this paper, a level transformation stage is introduced after DSM which significantly improves the transmitter efficiency in comparison to multi-level DSM. This novel topology is validated using 3 to 2 level and 5 to 3 level signal transformation which possess the advantage of multilevel signal at DSM stage along with the benefit of low PAPR signal at amplification stage. The implementation result shows that coding efficiency is improved by 5.6% in 3to2 level and 14.3% in 5to3 level signal transformation in comparison to 2 level and 3 level DSM based transmitter respectively.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115696329","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: 3
Design and fabrication of 1 GHz lateral TPoS MEMS resonator for RF front end applications 射频前端应用1 GHz横向TPoS MEMS谐振器的设计与制造
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8611011
K. N. B. Narayanan, D. Nair, A. DasGupta
{"title":"Design and fabrication of 1 GHz lateral TPoS MEMS resonator for RF front end applications","authors":"K. N. B. Narayanan, D. Nair, A. DasGupta","doi":"10.1109/IMARC.2017.8611011","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8611011","url":null,"abstract":"This paper reports on design, fabrication and characterization of laterally excited thin film piezoelectric on Silicon (TPoS) MEMS resonators of resonance frequency around 1 GHz. Devices were fabricated on 5 μm SOI and 0.5 μm Aluminium Nitride piezoelectric film. We studied the effect of the number of anchors attached to the resonator and the width of the resonator on Q-factor and motional resistance. Measured characteristics of the device with Phononic crystal (PnC) tether showed a resonance peak at 969.22 MHz with motional resistance 2.9 kΩ and Q-factor of 1998. The motional resistance could be reduced to 770 Ω for wider devices.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127091988","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: 4
Design of dual-band wilkinson power divider using CRLH transmission line based on CSRR 基于CSRR的CRLH传输线双频威尔金森功率分配器的设计
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8636646
Mukesh Kumar, S. Islam, G. Sen, S. K. Parui, S. Das
{"title":"Design of dual-band wilkinson power divider using CRLH transmission line based on CSRR","authors":"Mukesh Kumar, S. Islam, G. Sen, S. K. Parui, S. Das","doi":"10.1109/IMARC.2017.8636646","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8636646","url":null,"abstract":"This paper presents a design of a dual-band Wilkinson power divider (WPD) with compact size and planer structure. A dual-band impedance inverter is design using composite right and left handed (CRLH) transmission line based on complementary split ring resonator (CSRR), which provides similar behaviors at the two frequencies. The above mention dual-band inverter is used to design dual-band WPD with equal and in phase outputs at the output ports, port '2' & port '3' for 1.57GHz and 2.9GHz frequency band. The proposed WPD is analyzed, fabricated and tested.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125320397","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
A 38-GHz power amplifier with high efficiency and low quiescent power for phased array applications in 65-nm CMOS process 一种用于65纳米CMOS工艺相控阵的高效低静态功率38ghz功率放大器
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8636647
Huei Wang, Yu-Ting Chou, Jung-Lin Lin, Yuan-Hung Hsiao
{"title":"A 38-GHz power amplifier with high efficiency and low quiescent power for phased array applications in 65-nm CMOS process","authors":"Huei Wang, Yu-Ting Chou, Jung-Lin Lin, Yuan-Hung Hsiao","doi":"10.1109/IMARC.2017.8636647","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8636647","url":null,"abstract":"This paper presents a 38-GHz power amplifier (PA) implemented in 65-nm CMOS process for phased-array applications. The design targets of the PA are medium output power and high efficiency under low dc power consumption. The proposed PA adopts the asymmetrical output stage design with the neutralization technique applied to transistors and a novel low-imbalance transformer matching for high Q-factor. The measured saturation power (PSAT) is 15.6 dBm accompanying with 31.8% peak power add efficiency (PAE) and 11.9% PAE at 6-dB back-off PAE (PAE@Psat-6dB) at 38 GHz. This PA achieves good efficiency at PSAT compared with published millimeter-wave CMOS PAs with Psat ranging from 15 to 20 dBm.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114885905","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
Two-Port Reconfigurable Passive Radiator with Switchable Pattern for Active Antenna Application 双端口可重构无源辐射器，可切换模式，用于有源天线应用
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8449664
R. Singh, A. Basu, S. Koul
{"title":"Two-Port Reconfigurable Passive Radiator with Switchable Pattern for Active Antenna Application","authors":"R. Singh, A. Basu, S. Koul","doi":"10.1109/IMARC.2017.8449664","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449664","url":null,"abstract":"A two-port reconfigurable passive radiator with pattern switching capability and its application in designing of oscillating feedback loop active integrated antenna (AIA) is reported in this paper. Passive radiator consists of two element array of microstrip patch, fed by electromagnetically coupled T-shaped microstrip line. Proposed structure contains feed port (port 1) and coupled port (port 2). Proposed antenna is capable to switch the beam among sum and difference pattern by turning PIN diodes ON or OFF. As an application, oscillating feedback loop active integrated antenna (AIA) is designed by connecting this two-port passive radiator in the feedback path. Two-port passive radiator is fabricated and tested. Measured results are reported and compared with the simulated results. Proposed AIA design is simple and easy to fabricate can be used as a fixed frequency generator and key element for power combining arrays.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122507603","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: 1
Quad Band Metamaterial Inspired Planar Sensor for Dispersive Material Testing 用于色散材料测试的四波段超材料启发平面传感器
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8449718
N. Tiwari, S. Singh, M. Akhtar
{"title":"Quad Band Metamaterial Inspired Planar Sensor for Dispersive Material Testing","authors":"N. Tiwari, S. Singh, M. Akhtar","doi":"10.1109/IMARC.2017.8449718","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449718","url":null,"abstract":"Novel design of metamaterial inspired quad band planar microwave sensor is presented in this work. Proposed design topology consists of two pairs of concentric single ring complementary split ring resonators (SCSRR), etched on the ground plane of microstrip line. To design the quad band sensor, orientation of concentric SCSRRs with each other is first studied and it is found that in line orientation of SCSRRs provides minimum coupling between them. The proposed configuration of placing two inline SCSRRs with optimized interspacing between these two concentric SCSRRs facilitates the design of compact quad band sensor. Design and optimization of proposed quad band sensor are performed using the 3D electromagnetic solver, the CST-MWS. The proposed quad band sensor is designed to work in the ISM and WiMAX frequency bands (1.87 GHz, 2.46 GHz, 3.49 GHz and 4.34 GHz). The designed quad band sensor is fabricated on a FR-4 substrate and the measurements for various dispersive liquids are performed with the vector network analyzer. A close agreement between the simulated and measured frequency response of the device under both loaded and unloaded conditions is observed. The proposed design methodology is suitable developing compact sensors which can be very useful for various applications in the RF and microwave frequency region,","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128735349","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
Short Range Cloud Reflectivity Measurement Using X-Band Primary Surveillance Radar 基于x波段初级监视雷达的近程云反射率测量
2017 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2017-12-01 DOI: 10.1109/IMARC.2017.8449681
A. Upadhyay, Raghuram Pr, T. Varughese
{"title":"Short Range Cloud Reflectivity Measurement Using X-Band Primary Surveillance Radar","authors":"A. Upadhyay, Raghuram Pr, T. Varughese","doi":"10.1109/IMARC.2017.8449681","DOIUrl":"https://doi.org/10.1109/IMARC.2017.8449681","url":null,"abstract":"A systematic procedure for using X-Band Primary Surveillance Radar (PSR) for the application of short range weather observation, forecasting and nowcasting has been presented in the paper. PSR stationed at Thumba Equatorial Rocket Launching Station (TERLS) operates in X-Band (9.3-9.5 GHz) having the capability to detect sea and airborne targets of Radar cross section of 10sq.m upto a range of 100km. The small wavelength of operation has enabled PSR to detect tiny rain droplets and lighter precipitation at the compromise of higher rain attenuation. The reflectivity from the hydrometers is calculated from the back scattered power in PSR after compensating for ground clutter and attenuation due to precipitation. The reflectivity values are then compared with the C-Band Polarimetric Doppler Weather Radar (DWR) stationed near to PSR. Good correlation has been observed in the data products upto the slant range of 50km. Using the Z-R (reflectivity - rainfall rate) relation, the rainfall estimate has been computed. The procedure formulated and validated in this paper reveals the utility of PSR as a short range weather Radar and also as a calibration tool for DWR.","PeriodicalId":259227,"journal":{"name":"2017 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121470363","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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