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2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)最新文献

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Electronically Tunable High Gain Leaky-wave Antenna using Eighth-mode SIW 采用八模SIW的电子可调谐高增益漏波天线
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877205
Anirban Sarkar, M. Adhikary, Abhishek Sharma, A. Biswas, M. Akhtar
{"title":"Electronically Tunable High Gain Leaky-wave Antenna using Eighth-mode SIW","authors":"Anirban Sarkar, M. Adhikary, Abhishek Sharma, A. Biswas, M. Akhtar","doi":"10.1109/IMaRC.2018.8877205","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877205","url":null,"abstract":"A novel electronically tunable compact high gain eighth-mode substrate integrated waveguide (EMSIW) based leaky-wave antenna in planar environment is proposed and investigated. The proposed antenna uses 1/8th mode SIW resonator incorporated with tunable delay line which help to steer the radiated beam. The beam switching is performed by changing the states of PIN diodes. Basically, by changing the bias voltage systematically, the polarity of diodes are changed accordingly which account a phase delay in the transmission line and steer the main beam at a fixed frequency. Due to the systematic placement of radiating EMSIW resonator unit cell on microstrip environment, the radiation intensity is improved which further enhances the overall gain of the antenna. Simulated results show that the proposed antenna is able to operate within frequency band of 9.5-11.5 GHz with beam scanning range of 48° and maximum gain of 13 dBi. All the experimental results show a fair agreement with the corresponding simulated data that validating the proposed approach.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125362642","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 and Development of a Narrow Band Dielectric Resonator Filter at Ku Band Ku波段窄带介质谐振器滤波器的设计与研制
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877324
N. D. Makwana, Vikrant Singh, Ambrish Ghadiya, J. Dhar
{"title":"Design and Development of a Narrow Band Dielectric Resonator Filter at Ku Band","authors":"N. D. Makwana, Vikrant Singh, Ambrish Ghadiya, J. Dhar","doi":"10.1109/IMaRC.2018.8877324","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877324","url":null,"abstract":"This paper describes the design and development of very Narrow Bandwidth Ku-Band Filter required for Frequency Generator. It will provide desired in-band response in very narrow bandwidth 0.05 % and sharp rejection at specific frequencies > 48dBc. Quasi-Elliptic Filter function with two out-of-band transmission zeros used to achieve required near band rejection specifications. Cascaded-quadruplet topology is used to generate near-band transmission zeros. Dielectric resonator technology used to develop the filter. DR Filter structures is modelled, fabricated, and tested. The Design has been validated with the test performance.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125422214","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
Stereolithographic 3D Printing of Post Filters with Non-Conventional Geometry 具有非常规几何形状的后滤波器的立体光刻3D打印
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877202
C. Tomassoni, G. Venanzoni, M. Dionigi, R. Sorrentino
{"title":"Stereolithographic 3D Printing of Post Filters with Non-Conventional Geometry","authors":"C. Tomassoni, G. Venanzoni, M. Dionigi, R. Sorrentino","doi":"10.1109/IMaRC.2018.8877202","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877202","url":null,"abstract":"Additive Manufacturing (AM) technology is becoming very popular for many applications, including the manufacturing of electromagnetic components. Several scientific papers have been written on this topic, but most of them are focused on the manufacturing of classical structures. In this paper instead, it is shown how the versatility of AM can be used to design new components with non-conventional geometry. This is shown through the design of filters with resonant posts having non-conventional shape and position exploited to obtain higher performances. The manufacturing of such structures would have been very hard with classical manufacturing technologies. The feasibility with AM stereolithographic (SLA) technology is demonstrated through measured prototypes.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126644292","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
Multi-Mode, Pulsed X-band Exciter with Low Close-in Phase Noise and Low Power Consumption for Radar Application 雷达用低近相噪声低功耗多模脉冲x波段激振器
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877229
S. K., H. M. V, Gourav Chaturvedi
{"title":"Multi-Mode, Pulsed X-band Exciter with Low Close-in Phase Noise and Low Power Consumption for Radar Application","authors":"S. K., H. M. V, Gourav Chaturvedi","doi":"10.1109/IMaRC.2018.8877229","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877229","url":null,"abstract":"This paper describes the design of pulsed X-band Exciter with very low close-in phase noise and low power consumption for radar application. The module generates X-band frequencies in 500 MHz bandwidth for radar transmission and as variable LO. The frequency step resolution is 20MHz. L-band frequency is also generated as fixed LO. In addition, clock frequencies of 50 MHz and 100 MHz are generated for coherent clocking of other radar subsystems. The module works on a fixed reference input of 100 MHz. The module generates signal for calibration of the RADAR and basic target simulation. The interface to the module is SPI.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122925736","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
Impedance Matching Technique for Wearable Antennas Using Metamaterial Ground 基于超材料接地的可穿戴天线阻抗匹配技术
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877234
S. Bhattacharjee, M. Midya, S. R. Bhadra Chaudhuri, M. Mitra
{"title":"Impedance Matching Technique for Wearable Antennas Using Metamaterial Ground","authors":"S. Bhattacharjee, M. Midya, S. R. Bhadra Chaudhuri, M. Mitra","doi":"10.1109/IMaRC.2018.8877234","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877234","url":null,"abstract":"Human body is lossy in nature, so an antenna placed directly over body suffers detuning easily and the radiation property of the antenna gets affected. The radiated energy gets dissipated within the near field of the antenna on account of the lossy nature of human tissue and it may result into local rise in specific absorption rate (SAR) and temperature. In this paper a new technique for impedance matching in wearable antennas is discussed with loading of Meta materials. Both epsilon negative (ENG) and mu negative (MNG) type Meta-Materials can be employed in this technique. Range of epsilon and mu values for which maximum matching has been obtained is computed. Overall with proper unit cell design a wide range of matching can be obtained. The theoretical approach along with the simulation results validation is shown in the paper.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116071904","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 Evaluation Using Multilayered Dielectric RF Reflector 多层介质射频反射器的性能评价
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877208
Pravakar Mallick, Milan Kumar Pal, A. K. Ray, R. Chaudhary
{"title":"Performance Evaluation Using Multilayered Dielectric RF Reflector","authors":"Pravakar Mallick, Milan Kumar Pal, A. K. Ray, R. Chaudhary","doi":"10.1109/IMaRC.2018.8877208","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877208","url":null,"abstract":"During design and development of airborne systems, flight test is one of the critical tests among many tests being performed for proving its flight worthy application. This test is undertaken to evaluate against some simulated aerial target. Target need to be characterized as a source of infrared or RF signature. In many applications, RF signature of simulated target is interrogated by the airborne system that is under evaluation and as well as by the instrumentation radars being used for providing complete flight trajectory performance evaluation. However, with the development in electronic warfare scenario, the target sizes have become smaller. In addition, stealth technology is used to deceive enemy radar. Therefore, it becomes quite challenging for radar engineer to get track of targets and provide the trajectographic information. Target assignment & its interception are carried out as per the tracked data. So, RF signature augmentation of aerial target is a critical need during performance evaluation in a Test Range. This paper analyses the effectiveness of passive RF signature augmentation using Luneberg Lens as multilayered dielectric RF reflector for flight test & its performance evaluation in a Test Range.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124441150","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
Studies on equivalent circuit approach to design waveguide break for 14.45 GHz ECR ion source 14.45 GHz ECR离子源波导破断设计的等效电路方法研究
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877158
Anuraag Misra, Indira Chatterjee, P. Y. Nabhiraj
{"title":"Studies on equivalent circuit approach to design waveguide break for 14.45 GHz ECR ion source","authors":"Anuraag Misra, Indira Chatterjee, P. Y. Nabhiraj","doi":"10.1109/IMaRC.2018.8877158","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877158","url":null,"abstract":"In this article an equivalent circuit approach based on transmission line theory is proposed to design the waveguide break for 14.45 GHz ECR ion source. The parameters of three designs of waveguide break are first obtained using equivalent circuit approach. These designs are then simulated using a commercial FEM software ANSYS HFSS. Furthermore, all the designs are fabricated and reflected power for all the designs are measured at a forward power of 200W. Finally, a comparison is drawn among the results of equivalent circuit approach, HFSS simulation and measurements. It is demonstrated first time in this work that equivalent circuit approach is quite effective in the design of waveguide break and can estimate reflected power with an error less than 4% as compared to the measurement results.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116844790","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 Lightweight Exfoliated Graphite Based Thin Composites for EMI Shielding 电磁干扰屏蔽用轻质剥落石墨基薄复合材料的设计
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877128
Vishal Kumar Chakradhary, Jitendra Tahalyani, M. Akhtar
{"title":"Design of Lightweight Exfoliated Graphite Based Thin Composites for EMI Shielding","authors":"Vishal Kumar Chakradhary, Jitendra Tahalyani, M. Akhtar","doi":"10.1109/IMaRC.2018.8877128","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877128","url":null,"abstract":"In this work, the design of novel exfoliated graphite (EG) powder based lightweight composites for effective EMI shielding of sensitive electronic instruments, used quite often in various civil and military applications, is proposed. The EG powder in the present situation is synthesized using the microwave assisted chemical intercalation of natural graphite flakes. Further, to study the EMI shielding properties, the EG composites of various concentration (2, 4, 6 and 8 wt.% epoxy) are prepared using the ultrasonication method. The EMI shielding effectiveness is measured with the help of a network analyzer by placing these composite samples in the X-band waveguide. It is observed that 1 mm (~ λ/30) thin EG composite at 6 wt.% epoxy shows EMI shielding effectiveness of more than 22 dB over the complete X band. As the EG powder added into the epoxy is at very low concentration, hence the resultant composite is quite lightweight thus making it suitable for even aerospace applications. The proposed EG composites may thus potentially be used for various EMI shielding applications where the lower filler concentration, lightweight and low thickness is the prime consideration.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116937635","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
A Multi-layered Frequency Selective Surface-Based Wireless Filter with Dual Bandpass Response 具有双带通响应的多层频率选择表面无线滤波器
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877335
A. Chatterjee, Goffar Ali Sarkar, S. K. Parui
{"title":"A Multi-layered Frequency Selective Surface-Based Wireless Filter with Dual Bandpass Response","authors":"A. Chatterjee, Goffar Ali Sarkar, S. K. Parui","doi":"10.1109/IMaRC.2018.8877335","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877335","url":null,"abstract":"The design of a multilayered bandpass frequency selective surface (FSS)-based wireless filter with narrowband as well as wideband frequency response is presented in this paper. The proposed FSS is designed by cascading two metallic patch type layers with split ring shaped slot and one grid layer with two dielectric substrates in between. The proposed design exhibits second order bandpass response in the 6-7.7 GHz band with two transmission poles at 6.4 GHz and 7.4 GHz and another transmission pole at 3.3 GHz is achieved due to the slots in the patches leading to another passband. The structure is low profile with the horizontal and vertical periodicities of unit cell on the order of λ0/13 with respect to lowest resonating frequency. Transmission phase of the FSS reduces linearly with frequency in the 6-7.7 GHz band which makes it useful for enhancing the broadside radiation of an antenna over wide bandwidth when used as a superstrate above the radiator.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115323597","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
Ku-Band MMIC Packaging for Space Application 用于空间应用的ku波段MMIC封装
2018 IEEE MTT-S International Microwave and RF Conference (IMaRC) Pub Date : 2018-11-01 DOI: 10.1109/IMaRC.2018.8877098
Deepankar Roy, A. V. Sucharitha, Darukesha B H M, Srinivasarao Bollu, Venkata Sitaraman Puram, D. Ramana
{"title":"Ku-Band MMIC Packaging for Space Application","authors":"Deepankar Roy, A. V. Sucharitha, Darukesha B H M, Srinivasarao Bollu, Venkata Sitaraman Puram, D. Ramana","doi":"10.1109/IMaRC.2018.8877098","DOIUrl":"https://doi.org/10.1109/IMaRC.2018.8877098","url":null,"abstract":"This paper describes the packaging of Ku Band MMIC LNA to be used in RF front end of Ku band satellite command receiver. An indigenous design is introduced for GaAs MMIC packaging replacing the existing discrete based LNA gain block design. The air-cavity package is designed and implemented using Alumina substrate to operate the package up to 18 GHz, the package simulations and other design aspects are discussed in this paper. A low noise MMIC is packaged for practical application and compared with bare die measurements to verify the package performance. The enclosure effect was analyzed by comprehensive 3D electromagnetic modeling, simulation and measurement of active MMIC in the package. A maximum of 1.5 dB insertion loss degradation occurred near 15 GHz.","PeriodicalId":201571,"journal":{"name":"2018 IEEE MTT-S International Microwave and RF Conference (IMaRC)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115621163","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
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