Latest Space News
Tue, 16 Jan 2018 12:00:24 +0000
The new president of Canadian space technology company MDA says he sees opportunities for growth both within the country and beyond, while maintaining the company’s Canadian roots as part of a larger, and increasingly American, company. SpaceNews.com
Mon, 15 Jan 2018 20:44:32 +0000
The SBIRS satellites are equipped with powerful scanning and staring infrared sensors that collect data for use by the U.S. military to detect missile launches. SpaceNews.com
Mon, 15 Jan 2018 18:55:15 +0000
The plan is to shift the current ground software architecture to an open-systems platform that the Air Force would own and update with new technology as it becomes available. SpaceNews.com
Mon, 15 Jan 2018 12:00:22 +0000
The successful launch of an Indian Polar Satellite Launch Vehicle (PSLV) Jan. 11 marked not just the return to flight of the rocket but also major achievements for several of the companies with payloads on board the vehicle. SpaceNews.com
Fri, 12 Jan 2018 21:37:32 +0000
China Great Wall Industry Corp. landed a new satellite order Jan. 11 on the back of a bilateral meeting between Chinese and Cambodian officials that included an agreement to increase trade between the countries. SpaceNews.com
Fri, 12 Jan 2018 20:43:46 +0000
An independent safety panel recommended NASA not certify SpaceX’s commercial crew system until the agency better understands the behavior of pressure vessels linked to a Falcon 9 failure in 2016. SpaceNews.com
Fri, 12 Jan 2018 15:58:11 +0000
Virgin Galactic conducted its first test flight of its SpaceShipTwo suborbital vehicle in more than five months Jan. 11 as the company prepares to begin powered test flights of the vehicle. SpaceNews.com
Fri, 12 Jan 2018 14:55:04 +0000
The PSLV lifted off from the Satish Dhawan Space Centre at 10:59 p.m. Eastern and placed into orbit a Cartosat 2 imaging satellite and 30 secondary payloads. SpaceNews.com
Fri, 12 Jan 2018 12:09:38 +0000
Rocket Lab announced Jan. 11 it plans to make another attempt to launch its Electron small rocket on its second mission later this month. SpaceNews.com
Thu, 11 Jan 2018 22:59:37 +0000
Pentagon officials on the Zuma space mission: 'We're not going to be able to give you any more information' SpaceNews.com
Thu, 11 Jan 2018 19:31:37 +0000
The U.S. Air Force is focused on information technology, cybersecurity and small satellites to enhance weather capabilities in the near term rather than a new generation of large, sophisticated spacecraft to replace the Defense Meteorological Satellite Program. SpaceNews.com
Thu, 11 Jan 2018 17:39:01 +0000
SpaceX has delayed its two commercial crew test flights by four months, according to a new NASA schedule released Jan. 11, raising questions about whether it or Boeing will be able to send astronauts to the International Space Station by the end of the year as previously planned. SpaceNews.com
Thu, 11 Jan 2018 16:35:22 +0000
NOAA's future constellation could include a mix of large government-owned and government-operated satellites, imaging instruments hosted on commercial satellites, small satellites in low Earth orbit and data purchased from commercial firms. SpaceNews.com
Thu, 11 Jan 2018 09:36:21 +0000
NASA announced Jan. 10 that it was renaming the Swift astronomy spacecraft after its former principal investigator, who passed away last year. SpaceNews.com
Thu, 11 Jan 2018 04:26:35 +0000
Spanish rocket startup PLD Space received 2 million euros ($2.4 million) from a European Commission grant program to further the development of a pair of launchers designed for small satellites. SpaceNews.com
Thu, 11 Jan 2018 03:46:29 +0000
Growing demand by terrestrial wireless firms threatens the federal government’s exclusive use of spectrum traditionally reserved for NOAA satellite broadcasts to emergency managers, meteorologists and researchers. SpaceNews.com
Wed, 10 Jan 2018 22:37:13 +0000
The U.S. National Oceanic and Atmospheric Agency may be able to slash the cost of transmitting data from its next generation of weather satellites by turning to commercial communications services. SpaceNews.com
Wed, 10 Jan 2018 21:22:06 +0000
The United States could soon be unpleasantly surprised as China continues to shore up its domestic capacity to produce high-end weapons, satellites and encryption technologies. SpaceNews.com
Wed, 10 Jan 2018 13:46:18 +0000
Spire Global, the San Francisco-based company that operates 48 GPS radio occultation cubesats, says it could provide a persistent view of about 97 percent of Earth with a constellation of 150 satellites. SpaceNews.com
Wed, 10 Jan 2018 11:18:30 +0000
A group of astronomers and engineers is seeking to convince NASA to study in-space servicing and assembly of future space telescopes, including the role the proposed Deep Space Gateway could play to support it. 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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