Latest Space News
Thu, 24 Jan 2019 02:51:23 +0000
Commissioners speaking this week at the Conference on European Space Policy in Brussels said the continued reservations of European investors about financing space startups is hampering Europe’s ability to keep pace with similar startup activity in the United States. SpaceNews.com
Thu, 24 Jan 2019 00:10:23 +0000
A partial government shutdown now nearly five weeks old is affecting a growing number of space companies and organizations as well as the agencies themselves shuttered by the lapse in funding. SpaceNews.com
Wed, 23 Jan 2019 23:37:14 +0000
Acting Defense Secretary Shanahan has directed Undersecretary of Defense Mike Griffin to submit a plan by March 1 to stand up the Space Development Agency no later than March 29. SpaceNews.com
Wed, 23 Jan 2019 18:35:43 +0000
The European Commission allocated another 96 million euros ($109 million) for the European Space Agency to spend on the Copernicus Earth-observation program in the next two years. SpaceNews.com
Wed, 23 Jan 2019 18:17:50 +0000
OneWeb and its manufacturing partner Airbus Defence and Space have shipped the first six satellites of OneWeb’s broadband smallsat constellation from Toulouse, France, to French Guiana. SpaceNews.com
Wed, 23 Jan 2019 15:57:02 +0000
Blue Origin’s New Shepard suborbital vehicle launched on its tenth test flight Jan. 23 as the company edges closer to flying people into space. SpaceNews.com
Wed, 23 Jan 2019 13:20:13 +0000
While an unprecedented number of satellites brings with them important benefits to humanity, we must be careful to proceed responsibly and minimize the potential for harming the low Earth orbit (LEO) environment for generations to come. SpaceNews.com
Wed, 23 Jan 2019 00:13:31 +0000
NASA announced Jan. 22 that it is replacing an astronaut who was scheduled to fly on a commercial crew test flight later this year because of a medical issue. SpaceNews.com
Tue, 22 Jan 2019 21:47:46 +0000
Small launch vehicle developer Rocket Lab will launch an experimental satellite for the Defense Advanced Research Projects Agency in February, the first of a planned dozen launches in 2019. SpaceNews.com
Tue, 22 Jan 2019 20:50:11 +0000
ESA has awarded a contract to a group that includes Europe’s largest launch services provider and a former Google Lunar X Prize competitor to study a concept for a mission to mine lunar regolith. SpaceNews.com
Tue, 22 Jan 2019 12:22:24 +0000
The United Arab Emirates will seek to encourage both investment in space ventures in the country as well as investment by domestic funds into the broader space industry. SpaceNews.com
Mon, 21 Jan 2019 18:31:01 +0000
Griffin: “We think the best approach is a network of satellites in low orbit. How many, what orbit, all that is to be determined.” SpaceNews.com
Sat, 19 Jan 2019 02:31:25 +0000
Stratolaunch, the company founded by the late billionaire Paul Allen, said Jan. 18 that it is ending work on a launch vehicle that would be flown on the company’s giant aircraft. SpaceNews.com
Sat, 19 Jan 2019 00:44:05 +0000
QuadSat, a Danish company focused on testing and calibrating satellite antennas with quadcopters drones, plans to recruit satellite engineers with 700,000 euros ($796,000) raised in a seed investment round announced Jan. 16. SpaceNews.com
Fri, 18 Jan 2019 22:50:41 +0000
Blue Origin has rescheduled a test flight of its New Shepard suborbital vehicle for Jan. 21 as the company edges closer to flying people into space. SpaceNews.com
Fri, 18 Jan 2019 20:39:38 +0000
With the maiden flight of the Ariane 6 now 18 months away (in July 2020), Arianespace CEO Stéphane Israël said the company had anticipated signing a manufacturing contract with ArianeGroup in the second part of last year to begin production beyond the first rocket. SpaceNews.com
Fri, 18 Jan 2019 17:55:06 +0000
A new appropriations bill the House plans to vote on next week would provide $21.5 billion for NASA in 2019 but warns that any further problems with the James Webb Space Telescope could lead to its cancellation. SpaceNews.com
Thu, 17 Jan 2019 21:20:42 +0000
In an interview, Isotropic founder and CEO John Finney said Boeing and Isotropic agreed to several “strategic elements” that go beyond the cash investment. SpaceNews.com
Thu, 17 Jan 2019 20:51:20 +0000
Trump: Space ultimately is “going to be a very big part of our defense and offense." SpaceNews.com
Thu, 17 Jan 2019 19:23:51 +0000
The U.S. Air Force has obligated about $7 million of its $20 million budget for commercial satellite weather data. SpaceNews.com
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  • CV: Scientist

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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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