Optimization of Coating Thickness of Conducting Material on Base Fiber to make it as a Radar Reflector

Authors

  • Vivek Bajpai Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Verandra Kumar Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Ajit Kumar Singh Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Niyaz Mohammad Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Kavita Chouhan Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Alok Basita Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Prashant Vasistha Defence Laboratory, DRDO, Jodhpur, 342011, INDIA
  • Ravindra Kumar Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

DOI:

https://doi.org/10.32452/IJAMT.2021.247253

Keywords:

Backscattered RCS, electrically conducting fiber, HFSS simulations, skin depth, anechoic chamber

Abstract

Chaff is one of the most extensively used passive electronic countermeasure to disrupt radar tracking and are designed to cover wide frequency range from 2-18 GHz. There are various factors to improve backscattered RCS of the chaff cloud at higher frequencies. In this paper, the effect of coating thickness of conducting material of electrically conducting fibre (which is used as chaff) on its backscattered RCS has been studied. The relationship between fiber coating thickness of conducting material and its backscattered RCS were obtained by performing simulations in Ansys HFSS with dipole length of 50mm and 15mm and later validating the same with the measured results. It is observed that with an increase in coating thickness of conducting material of the fibre there is increase in its backscattered RCS. When coating thickness of conducting metal becomes greater than the skin depth of the conducting metal, the increase in observed RCS with increase in coating thickness is marginal. Thus, further increase in coating thickness greater than the skin depth of the conducting metal will not improve the backscattered RCS of the fiber significantly but it will add weight penalty for the fiber. 

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Author Biographies

Vivek Bajpai, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Vivek Bajpai: He did his MSc(Physics) from Madurai Kamaraj University, Madurai during 2007-2009. He joined DRDO at DL, Jodhpur in 2003and currently working as Technical Officer 'B'. He has experience of 17 years in the areas of development of water purification technologies and Modelling, Simulation and Measurements of electronic coutermeasure used by Armed forces

Verandra Kumar, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Verandra Kumar: He did his B Tech from MNIT, Jaipur in ECE during 2005-09. He joined DRDO in 2009 at DL, Jodhpur and currently working as Scientist D. His area of work includes RCS measurement and simulation of tagrets for stealth application, design of electronic countermeasure decoys as well as Dynamic RCS modelling, simulation and measurements of decoys currently being used by IAF and IN.

Ajit Kumar Singh, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

 Ajit Kumar Singh: He joined DRDO in 2013 at DL, Jodhpur. He has the experience of 07 years in the area of design and development of software to simulate  the parameters of electronic countermeasure and analysis of various chaff decoys used by IAF and IN.

Niyaz Mohammad, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Niyaz Mohammad: He has joined DRDO in 2010 at DIC Panagarh (WB). He has 17 years experience in the field of Basic Electronics Engineering. He has 8 years of experience in the area of Strategic communication system(VSAT) and networking. He joined Defence Laboratory, Jodhpur in 2018. Presently he is working in the field of Static and Dynamic RCS Measurement of electronic counter measures.

Kavita Chouhan, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Kavita Chouhan: She did her MSc in Chemistry from JNVU, Jodhpur in 2000 and PhD in Chemical Kinetics from JNVU, Jodhpur in 2005. She joined DRDO in 2006 at HEMRL, Pune and worked on Composite propellant, Glycidyl azide based propellant. Currently, she is working as Scientist D in DRDO at DL Jodhpur on preparation of fine chaff fibres, their surface finishing,  slip coating, and metal coating on fibres by electroless process.

Alok Basita, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Alok Basita: He did his B.Tech from MNIT during 2001-2005. He joined DRDO in 2005 and currently working as scientist E at DL, Jodhpur. He has 15 years of experience in design of digital control systems for testing facility of various subsystems related to Gas Turbine Engine, electronic counter measure dispensing system, as well as RCS measurement studies on various targets and decoys suitable for electronic counter measure system.

Prashant Vasistha, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Prashant Vasistha: He did his PhD from Department of Electronics Engineering , IIT BHU. He joined DRDO in 1998 at DL, Jodhpur and currently working as Scientist G. He has been working in the area of Radar Cross Section (RCS) management and charectrization studies and RCS measurement technologies for combat systems and design and development of electronic countermeasure decoys. He has an experience of 24 years in the area of design and development of radar camouflage techniques and electronic counter measure decoys. 

Ravindra Kumar, Defence Laboratory, DRDO, Jodhpur, 342011, INDIA

Ravindra Kumar: He did his BE from IIT Roorkee in 1983 and M Tech from IIT Mumbai in 1987. He joined DRDO in 1983 at DL, Jodhpur and currently working as Outsatnding scientist and Director of estalishment. He has an R&D experience of 37 years in the area of desert warfare scenraio management, Phase change materials, water purifications systems and design, development and testing of electronic countermeasures.

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Published

2021-03-14

How to Cite

Vivek Bajpai, Verandra Kumar, Ajit Kumar Singh, Niyaz Mohammad, Kavita Chouhan, Alok Basita, Prashant Vasistha, & Ravindra Kumar. (2021). Optimization of Coating Thickness of Conducting Material on Base Fiber to make it as a Radar Reflector. International Journal of Advances in Microwave Technology, 6(1), 247-253. https://doi.org/10.32452/IJAMT.2021.247253

Issue

Vol. 6 No. 1 (2021): Volume 6, Issue 1 (February 2021)

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