{"title":"A miniature modified patch antenna for K-band","authors":"D. Konhar, Adhina Maharaj","doi":"10.1109/AESPC44649.2018.9033159","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033159","url":null,"abstract":"A miniature modified antenna is proposed for K-band application. The proposed antenna has the compact dimensions of 16 x 17 x 1.6 mm3. It is composed of a modified circular patch radiating element and a coplanar waveguide (CPW) feed. A wide impedance bandwidth of 7.9 GHz from 14.7 GHz to 22.6 GHz with return loss less than -10dB is obtained. Nearly stable radiation pattern and a peak gain of 7dB is observed from the simulation.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125160528","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}
{"title":"A comparative study of RPG missile modeling for radar cross section analysis at 10 GHz","authors":"M. Madhan, Sanjeev Ag, S. Piramasubramanian","doi":"10.1109/AESPC44649.2018.9033338","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033338","url":null,"abstract":"Radar cross section is evaluated for three different models of RPG−7 missile, each representing different levels of complexity. An approximate model, a detailed model without fins and a complete model with fins are used to investigate the effect of missile parts, shapes on the Radar cross section (RCS) and its computation time. The computations are based on bistatic simulation for horizontal polarization, at 10 GHz frequency. The RCS obtained at bow region, for the approximate model, full model without fins and complete model are −29.03 dBsm, −13.57 dBsm and −11.33 dBsm respectively. RCS simulations under both broadside and end on excitation are carried out for the models using the integral equation solver technique available in a commercial EM solver tool.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"67 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131776413","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}
{"title":"Comparison of Numerical Methods in RCS Computation of Corner Reflectors","authors":"N. K. Sahoo, R. K. Parida, D. C. Panda","doi":"10.1109/AESPC44649.2018.9033445","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033445","url":null,"abstract":"RCS of dihedral and trihedral corner reflectors are computed using different numerical methods. Performance of the algorithms is compared in terms of memory, computational time and the number of cell requirement. It is found that the FDTD method utilizes less computational resources compared to MOM and FEM in RCS computation of corner reflectors.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121105797","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}
{"title":"Adaptive NonLinear Equalizer for SISO Wireless Channels.","authors":"Swetaleena Sahoo, S. Nanda, Harish ku Sahoo","doi":"10.1109/AESPC44649.2018.9033351","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033351","url":null,"abstract":"Channel equalization is an essential component of wireless receiver used in SISO (Single Input and Single Output) communication systems to mitigate the effect of inter symbol interference (ISI) and other channel impairments. Adaptive signal processing models with weight adjustment mechanisms can be utilized to design equalizer for wireless environments. In this paper nonlinear adaptive channel equalizer for SISO communication channels has been designed with the help of variable step size Least Mean Square/Fourth (VSSLMS/F) algorithm with a suitable control parameter. 4-QAM modulation is used to generate pass band input data sequence which is transmitted through the nonlinear channel. Output sequence is estimated by using equalized output with help of decision device. The performance of the proposed equalizer has been evaluated on basis of bit error rate (BER) with help of comparison results using MATLAB simulations in presence of additive channel noise.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130730054","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}
{"title":"Low Power High Stability SRAM Cell with Combined Effect of Sleep- Stack and Diode Gated Technique","authors":"K. Ray, B. Patro","doi":"10.1109/AESPC44649.2018.9033421","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033421","url":null,"abstract":"In this work, Static Random Access Memory (SRAM) is designed on 0.18 micron by using CADENCE virtuoso tools. It focuses on the power consumption and leakage power improvement since SRAM has high leakage power consumption. Leakage power and performance of SRAM cell is greatly affected by the development of technology and speed of operation. The total leakage power is greatly affected by the combined effect of subthreshold leakage current and gate leakage current. With the fall of oxide thickness the gate leakage current increases exponentially. Hence efficient techniques are required which will address the gate leakage component. In our design, with sleep- stack two more transistors are used in conventional SRAM cell to minimize the gate leakage current and to improve the performance of the memory cell.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133047467","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}
{"title":"Performance evaluation of Relays used for next Generation wireless communication networks","authors":"Saraju Prasad Padhy, Srinivas Sethi, A. Tripathy","doi":"10.1109/AESPC44649.2018.9033327","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033327","url":null,"abstract":"Relaying is one of the latest technologies developed for next generation wireless networks. The purpose of relays in these networks is to increase the coverage and bitrates for cell edge users. Thus they are considered for Next generation wireless communication systems like Wi-Max (IEEE 802.16m), 3GPP LTE-Advanced (4G) and 5th Generation wireless networks to provide considerable increase in data throughput than the previous wireless communication systems. Reduction in deployment cost and easy to utilize are other promising features of these technologies. The objective of this paper is to understand the existing relay techniques, both cooperative and non-cooperative and outline the advantages of Relay implementation. Reduction in transmission power requirement for Simple Relay is shown in comparison with the conventional direct transmission, using Matlab simulation. Also SER (Symbol error rate) is calculated at the receiver for no relay and relay scenario (Amplify & Forward Relay) using Matlab to show the improvement using Relay node. Finally the benefits of Cooperative relaying is outlined using Matlab simulation.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114054633","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}
{"title":"Performance comparison of four phase SRM using Many optimising Liaison and Gravitational Search Algorithm","authors":"Nutan Saha, S. Panda, Dillip Ku. Sahoo","doi":"10.1109/AESPC44649.2018.9033247","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033247","url":null,"abstract":"Present work discusses control of speed of a four phase switched reluctance motor abbreviated as SRM is done by application of optimization techniques. The techniques used are many optimizing liaison technique abbreviated as MOL and gravitational search algorithm abbreviated as GSA. Comparison in the performance of SRM is made using these two technique in accordance to speed control. The control of the complete system is goverened by two control loops for speed control, current control and a controller for controlling the turn on angle with turn off angle of the 75 KW, 4-phase 8/6 SRM. The problem considered here is to obtain the operating parameter for speed controller, current controller with turn on angle, turn off angle values, are regarded as objective problem formulation for best tracking of speed in order to reducing integral square error for speed. The simulation and analysis is accomplished in MATLAB/SIMULINK ambience. The execution evaluation of MOL and GSA is done by evaluating different statistical parameter. By making the comparison in performance using the two optimization technique it is evident ISE of speed decreased significantly by MOL approach.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133331343","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}
{"title":"Design & Analysis of Current Controller for SPV Grid Connected System through Hysteresis CCT","authors":"Riya Paul, Ritesh Dash, S. Swain","doi":"10.1109/AESPC44649.2018.9033188","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033188","url":null,"abstract":"The electrical distribution system throughout the world is based on AC system however some variations in the distribution voltage such as some countries follow 120V and some follows 230V system. So the photovoltaic modules need to be connected with the distribution system with some inverter technology. The prime work of the inverter is to load the photovoltaic module with its maximum capacity so that maximum photo generated current can be extracted, and thereby injecting sinusoidal current into the grid to which it is connected. Among different types of Current Controller Techniques such as Linear & Non-Linear Current Control Technique, the Non-Linear Current Control Techniques plays a very vital role in the Inverter Topology. This paper presents a Non-linear current controller technique based on the Hysteresis Current Controller for connection of SPV to the Grid. A MATLAB simulink model was designed to investigate the properties of controller and its response to the grid connected system.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133545404","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}
Diganta Misra, Rahul Pelluri, V. K. Verma, B. Appasani, N. Gupta
{"title":"Genetic Algorithm Optimized Inkjet Printed Electromagnetic Absorber on Paper Substrate","authors":"Diganta Misra, Rahul Pelluri, V. K. Verma, B. Appasani, N. Gupta","doi":"10.1109/AESPC44649.2018.9033161","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033161","url":null,"abstract":"Printable electronics based electromagnetic absorbers are receiving increasing attention of the electromagnetic community because of their unprecedented advantages. This paper presents the design of printable electromagnetic absorbers for the X band. The design of the absorber is optimized using the Genetic Algorithm (GA) to enhance the absorptivity and the absorption bandwidth. The design involves the placement of several square-shaped conductive ink at optimal locations on the paper substrate such that desired absorption characteristics are obtained. Simulations are carried out using the HFSS simulation software. The optimized structure offers an absorptivity of more than 90% in the X band thereby proving to be a viable solution for stealth applications.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122019927","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}
Samineni Peddakrishna, Sounik Kiran Kumar Dash, T. Khan
{"title":"Miniaturized Band Stop Frequency Selective Surface for Stable Resonance Characteristics","authors":"Samineni Peddakrishna, Sounik Kiran Kumar Dash, T. Khan","doi":"10.1109/AESPC44649.2018.9033427","DOIUrl":"https://doi.org/10.1109/AESPC44649.2018.9033427","url":null,"abstract":"In this paper, miniaturized 7.45 GHz resonant frequency band stop frequency selective surface (FSS) is designed. The unit cell dimensions of designed FSS is only about 0.1λ0 at the 7.45 GHz. Proposed design involves a crossed dipole metallic element together with meander shape on the substrate. Simulation results provide about 800 MHz bandwidth (7.1 GHz - 7.9 GHz) with -20 dB insertion loss. The FSS properties are studied on a unit cell using electromagnetic (EM) solver to observe the characteristics. Proposed FSS demonstrates a stable resonance frequency behavior for the arbitrary angle of incidences in both the polarizations such as TM and TE modes. Thus, the design holds a polarization independent characteristic for all incident angles and polarizations. Finally, the FSS properties are validated by a fabricated array of 31×31 mm2.","PeriodicalId":222759,"journal":{"name":"2018 International Conference on Applied Electromagnetics, Signal Processing and Communication (AESPC)","volume":"185 23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120993948","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}