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Pande D.C.,Electronics and Radar Development Establishment | Schreurs D.,Catholic University of Leuven | Vinoy K.J.,Indian Institute of Science | Ghorbani K.,RMIT University
IEEE Microwave Magazine | Year: 2015

The IEEE Microwave Theory and Techniques Society (MTT-S) International Microwave and Radio Frequency (RF) Conference (IMaRC2014) was held in Bangalore, India from December 15-17, 2014. The conference was technically cosponsored by the Institute of Electronics and Telecommunication Engineers (IETE), India, and the Indian Institute of Science (IISc), Bangalore. A total of 210 people 13 countries, including Australia, Canada, France, Belgium, Ireland, Japan, Korea, Malaysia, South Africa, Taiwan, the United Kingdom, the United States, and India attended the event. The technical program consisted of 2?4 parallel sessions each day. Source


Yadav R.,Electronics and Radar Development Establishment | Varma S.,Indian Institute of Information Technology Allahabad | Malaviya N.,Institute of Engineering and Technology
IEEE Sensors Journal | Year: 2010

In this work, we carried out the performance analysis of Optimized Medium Access Control (MAC) Protocol for the wireless sensor network. This MAC protocol solves the energy inefficiency taking nodes latency into consideration based on the network traffic. It achieves high-energy efficiency under wide range of traffic loads and is able to adjust itself to improve the delay performance when the network traffic load is high. © 2006 IEEE. Source


Singh D.K.,Electronics and Radar Development Establishment | Pande D.C.,Electronics and Radar Development Establishment | Bhattacharya A.,Indian Institute of Technology Kharagpur
Progress In Electromagnetics Research C | Year: 2013

Conventional reflector based Impulse Radiating Antennas (IRA's) are designed with conical taper transmission line feed. A novel feed design approach is used to enhance gain of the IRA without increasing diameter of the refiector. This paper discuses conventional and new IRA designs of different input impedances. IRA with conventional feed and with new dipole feed is designed for both 200Ω and 100Ω input impedance category. The IRA with new feed design offers better gain compared to conventional IRA for both 200Ω and 100Ω input impedance category. These antenna designs are analyzed using the Finite Difference Time Domain (FDTD) method and the result obtained shows that IRAs with new dipole feed offers better gain than IRAs with conventional feed for respective input impedance category without any compromise in time domain characteristics. A half IRA with new feed with input impedance of nearly 50Ω was realized and measured to establish the advantage of new dipole feed IRA. Source


Singh D.K.,Electronics and Radar Development Establishment | Pande D.C.,Electronics and Radar Development Establishment | Bhattacharya A.,Indian Institute of Technology Kharagpur
Progress In Electromagnetics Research C | Year: 2012

Equivalent charge method is used to design ultra wide band asymptotic conical dipole (ACD) antenna. Combination of linear charge density and point charges is used to generate different profiles for ACD antennas. Two different profiles of ACD antenna are used as a feed for reflector based impulse-radiating antennas (IRAs). This paper focuses on the selection of ideal ACD profile as well as the requisite charge distribution for ACD antenna as a feed to design 100 Ω input impedance reflector IRA. An ideal Configuration of ACD feeding structure for reflector IRA is chosen based on FDTD analysis results. To validate the utility of the proposed new feed an ACD-fed half IRA is realized with input impedance of nearly 50 Ω. Measurements are carried out using single-ended instrumentation without any impedance adaptor as commonly done with Conventional IRAs. © 2010 EMW Publishing. Source


Singh D.K.,Electronics and Radar Development Establishment | Mohan N.,Cmr Institute Of Technology | Pande D.C.,Electronics and Radar Development Establishment | Bhattacharya A.,Indian Institute of Technology Kharagpur
Progress In Electromagnetics Research B | Year: 2014

Radar scattered time domain response can be modeled by natural poles using singularity expansion method (SEM) in resonance region. In this paper, limitation of the conventional Extinction pulse method is brought out, and a hybrid of conventional Extinction pulse and auto-regressive (AR) method is proposed for robust discrimination of radar targets. A new target discrimination number (TDN) is suggested, which gives very good discrimination margin for enhanced decision process. The Hybrid Extinction pulse technique is applied on the free space targets as well as subsurface canonical metallic targets and the result obtained shows good discrimination margin. The free space target response was obtained using FDTD simulation and the subsurface target response was obtained using frequency domain measurement done for the targets buried under dry sand. Source

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