Latest Space News
Fri, 22 Jun 2018 22:07:52 +0000
Nearly a month after the signing of a policy directive calling for commercial space regulatory reforms, Commerce Department officials said this week they’re moving ahead on a number of fronts. SpaceNews.com
Fri, 22 Jun 2018 03:12:12 +0000
The White House has directed NASA to study the possibility of converting one of more of its field centers into federal labs, revisiting a proposal made nearly 15 years ago. SpaceNews.com
Fri, 22 Jun 2018 00:04:04 +0000
The Falcon Heavy beat United Launch Alliance’s Delta 4 in a competition under the Evolved Expendable Launch Vehicle program. SpaceNews.com
Thu, 21 Jun 2018 23:41:21 +0000
To receive FIRST UP Satcom, a weekly SpaceNews newsletter for satellite and telecom professionals, sign up here. TOP STORIES Chinese hackers tried to gain control of U.S. satellites in late 2017, leading a cyber firm to notify the U.S. government. Symantec’s protection software blocked some of the tools used by attackers known as “Thrip” that attacked two […] SpaceNews.com
Thu, 21 Jun 2018 22:56:40 +0000
Blue Origin expects to start flying people on its New Shepard suborbital vehicle “soon” and start selling tickets for commercial flights next year, a company executive said June 19. SpaceNews.com
Thu, 21 Jun 2018 21:41:59 +0000
Canadian satellite antenna manufacturer C-Com said June 21 it successfully tested the building blocks of a phased array antenna it hopes to sell next year. SpaceNews.com
Thu, 21 Jun 2018 15:25:18 +0000
Rogers: Whether you call the new branch a Space Corps or a Space Force is not all that important. SpaceNews.com
Thu, 21 Jun 2018 10:45:26 +0000
A report released by the White House June 20 outlines a set of goals to address the small but “high-consequence” threat posed by near Earth objects (NEOs), but does not commit to spending more money to achieve them. SpaceNews.com
Wed, 20 Jun 2018 19:52:56 +0000
Former Air Force Secretary Deborah Lee James: "The Air Force and the DoD have to come up with something to back up what the president said.” SpaceNews.com
Wed, 20 Jun 2018 15:57:18 +0000
China has lowered the orbit of its Tiangong-2 space lab, likely in preparation for deorbiting the orbital facility and thus averting a similar scenario to the uncontrolled re-entry of Tiangong-1 earlier this year. SpaceNews.com
Wed, 20 Jun 2018 12:13:10 +0000
Those who loathe or love a Space Force “separate but equal” to the Air Force must think and act decisively and quickly. Regardless of whether the Space Force actually materializes, deliberation alone could finally spring us into action to deal with the looming threat of space Pearl Harbor. SpaceNews.com
Wed, 20 Jun 2018 11:12:05 +0000
An advisory group dubbed the “think tank” for the National Space Council formally kicked off its work June 19 with a broad but vague mandate to study space policy issues. SpaceNews.com
Wed, 20 Jun 2018 00:08:21 +0000
Fleet operators SES and Intelsat asked the U.S. Federal Communications Commission to extend the deadline for their customers to register C-band dishes before the commission decides on the band’s future use. SpaceNews.com
Tue, 19 Jun 2018 11:00:08 +0000
Trump’s proposal derives from a growing debate inside military and political circles about how to best meet the threat posed to American space assets by potential enemies: Russia and China, to be precise. SpaceNews.com
Tue, 19 Jun 2018 01:45:44 +0000
A former NASA astronaut used an appearance at a National Space Council meeting June 18 to argue that a key element of NASA’s plans to return humans to the moon should be reconsidered. SpaceNews.com
Mon, 18 Jun 2018 19:35:34 +0000
Trump: Creating a Space Force and promoting space exploration by NASA and the private sector will be “important for the nation’s psyche.” SpaceNews.com
Mon, 18 Jun 2018 13:22:16 +0000
President Trump will sign a new space policy directive June 18 addressing space traffic management issues, closely following the proposed policy that Vice President Pence announced in April. SpaceNews.com
Mon, 18 Jun 2018 08:45:21 +0000
A key senator says he’s keeping an open mind regarding who in the federal government should have responsibility for the oversight of “non-traditional” commercial space activities. SpaceNews.com
Sat, 16 Jun 2018 19:45:35 +0000
The House Appropriations defense subcommittee approved $49.5 million to create a new “program of record for commercial satellite communications." SpaceNews.com
Fri, 15 Jun 2018 20:23:14 +0000
As the National Space Council prepares for its third public meeting, its activities to date have won widespread praise in the space community, even as there is some skepticism about the effectiveness of the council’s advisory group that will soon meet for the first time. SpaceNews.com
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    Personal information
     Name:<withheld>
     Age:<withheld>
     Country:<withheld>
     Location:<withheld>
    Contact information
     Email:<withheld>
     Phone:<withheld>
     Mobile:<withheld>
    Candidate Profile
     Date Submitted:21-09-2017
     Last Modified:26-09-2017 (03:52)
    Job information
     Current job:Scientist
     Employment Term:Permanent
     Job location:Anywhere
     Date available:within 2 months
     Industry:Satellite Manufacturers and Subcontractors, Launch Systems, Consulting/Engineering Services
     KeywordsSPACE PROGRAM MANAGEMENT, PAYLOAD TESTING, SPACE TECHNOLOGY ANALYST, DESIGN & MANUFACTURING EPC, SSPA, TWTA
    CV

    Date of Birth, Place              28/05/1974, Kollam, Kerala

    Present location                    Space Application Centre (SAC), ISRO, Ahmedabad, Gujarat       

    Designation                          Senior Scientist, Space Program /Project  Manager / Team Leader, Payload DC Power Systems & RF Power Amplifier Expert

    Research Experience/Area          20 Years. Space, Aerospace and Defense    Commercial / R&D /Critical Technology development Program  

    Design, Qualification and FM manufacturing of Satellite DC Power Systems / RF systems, EPC, SSPA, TWTA Design, Simulation, Development, Testing/Optimizations, Qualification and Flight Model Manufacturing carried out for Communication, Navigation and Remote Sensing Satellites, Deep Space Missions.

    Interesting fields               Space & Defense Program/Project Management, Payload Testing & Characterization, Satellite Power System Design/Simulations, Qualification, FM manufacturing, Advanced GaN based Hi-Rel DC/DC Conversion, ZVS/ZCS PWM & Resonant converters, Digital Control using FPGA/DSP,  Planar/Integrated Magnetics packaging, Circuit Simulation & Analysis, EMI/EMC Control, HMC/Power Hybrids, POL/LDO/MAGAMP designs, Envelope tracking, Flexible SSPA/GaN SSPA, Photovoltaic/Motor Controls, Linear/Nonlinear Robust Control Systems

    Software skills                  ORCAD/PSPICE, SABER, SIMPLIS/SIMETRIX, LTSPICE, PSIM, MATLAB/SIMULINK, VHDL, Libero

    Qualification                      Graduate in Engineering Technology, B-Tech [Electronics & Communication, TKMCE, Kollam, Kerala University, India]

    Language Skills                 English, Hindi, Gujarati, Tamil, Malayalam

    Membership                      

    1. Associate of COSPAR [International Committee On Space Research, USA]

    2. Member of VEDAS [Vacuum Electronic Device Application Society, India]     

    Publications                       More than 25 Publications/Articles in IEEE and National Journals, Transactions, Conferences, ISRO documents

    Appreciation                      Recipient of ISRO Team Excellence Award 2013 for developing 100W UHF SSPA / 60W C-TWTA

     

    Work Experience:

    1995-1997 Scientist CEERI, Pilani, Rajasthan

    Worked in CEERI, Pilani (A CSIR Lab, Govt. Of India) as a Scientist during 1995-1997 and associated with Design and Development of Space TWT for ISRO & Military TWT for DRDO.

     

    1997- 2017 Scientist SAC, ISRO, Ahmedabad

    In SAC/ISRO as Scientist/Engineer, working towards research, design, development and production of satellite equipments: EPC (satellite power supply), SSPA and TWTA (Satellite RF power amplifiers). During the last 20 years, I have worked in the field of EPCs, SSPAs & TWTAs. I have been responsible design and development of a number of State of the art EPCs ranging from very low power to high power & high voltage with advanced topologies. I have also been involved in the indigenous development of Space TWTAs, Space SSPAs.

     

    Professional Experience

    Space Program Management, Coordinating with Contractors/sub-contractors, Payload subsystems/systems delivery

    Design, Simulation, development, Testing, Qualification and Flight Model manufacturing of Space/Satellite systems

    -Electronic Power Conditioners (EPCs) developed for Low, Medium and High Power (1W to 650W DC) onboard Comm. and Navigation Satellite Payloads

    -High Voltage Electronic Power Conditioners (HV-EPCs) developed for 3KV to 6KV (150W-1500W DC) for TWTAs and Ion Thrusters

    -Indian Space Traveling Wave Tube Amplifiers (TWTAs) developed; Flight Model 60W C-Band TWTAs and Engineering Model 140W Ku-Band TWTAs

    Handled multi-disciplinary science and technologies (Power electronics, Digital, RF& Microwave, UHV/HV systems, Metal-Ceramic technologies, Material science & Particle physics)

    Co-coordination among “Govt.R&D – Academy – Industry” Network projects for various critical technologies development and technological capability building.

    Exposure to versatile work environments viz. Fundamental Research environment, Semi R&D + Production environment, Large scale Industrial Production environment; during execution of various collaborative projects.

    20 years of experience in procurement of Satellite systems (EPCs, Receivers, SSPAs, TWTAs) from global market. Interaction with renowned Space Equipment Manufacturers Boeing/L3Comm USA, TEASAT/Thales/Astrium EADS Germany/France, Alcatel Space Denmark, IR/Infineon, ASP, Germany, MDA, Canada

    Deputed to three renowned space equipment manufacturers (M/s BOEING USA, M/s THALES & M/s ASTRIUM Germany)

    Functioned as Member in several RFP Review Committee, PDR/CDR Committee for Electronic Warfare/Radar Systems of DRDO, Space Systems of ISRO.             

     

    Equipments Designed, Developed & Qualified for various Space programs of ISRO

    EPC for C, Ku Band LNA, U/D Converter, Receivers, Beacon       3W, 7.5W, 15W DC Power level                   26-42V Bus & 70V Bus designs

    EPC for UHF, L, S, C Band GaAs SSPAs              25W, 50W, 120W, 300W DC Power level                      42V Bus & 70V Bus designs

    EPC for UHF, L, S, C Band GaN SSPAs               125W, 170W, 350W, 650W DC Power level                   26-42V Bus & 70V Bus designs

    HVEPC and C-Band TWTAs                   HV EPC 3KV@150W DC &   60W C-Band TWTA                26-42V Bus & 70V Bus designs

    HV EPC and Ku-Band TWTAs                HV EPC 6KV@300W DC &   140W Ku-Band TWTA             26-42V Bus & 70V Bus designs

     

    Equipments Design, Development presently carrying out along with ISRO’s Commercial Program Managements

    New generation FPGA Controlled EPC            50-650W EPCs for 15W-250W Flexible GaN SSPAs              26-42V Bus & 70V Bus designs

    New generation eGaN Based EPCs             50-650W Switching GaN EPCs for 15W-250W GaN SSPAs             70V Bus designs

    HV-EPC for Ion Thruster                    1KV-2KV, 500W-1500W DC Power supply               70V Bus designs

     

    Conversion topologies worked on              Low voltage:  Flyback, Forward, Push-pull, RR/Active Clamp Forward, LLC, ZVT PSFB SR/CDR

                                                                      High Voltage: ZVS/ZCS Push-pull, ZVT PSFB, Series Resonant PSFB, LLC/LCC PSFB

     

        Control methods worked on                  Analog control:  Voltage Mode, Current Mode, Feed-Forward, Phase shifted PWM, PFM

    Digital Control:  Dynamic Bias, Envelope tracking Flexible DSP/FPGA/ASIC Controlled (DPWM, DPID, DPFM) EPCs for new generation Flexible payloads

     

        Packaging technologies worked on   Control HMCs, Power Hybrids, Planar Magnetics, Integrated Magnetics, FPGA, ASIC, LTCC


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