Latest Space News
Fri, 20 Apr 2018 00:03:03 +0000
Air Force and NRO leaders emphasized their close ties at the 34th Space Symposium here and offered proof the relationship is helping them share capabilities. SpaceNews.com
Thu, 19 Apr 2018 22:22:38 +0000
David Hartshorn, one of the satellite industry’s most vocal advocates and a prominent defender of its spectrum rights, is resigning from the Global VSAT Forum. SpaceNews.com
Thu, 19 Apr 2018 21:46:47 +0000
Blue Origin's CEO says he expects the company’s BE-4 engine to complete qualification testing by the end of the year as the company ramps up work on its New Glenn orbital rocket. SpaceNews.com
Thu, 19 Apr 2018 21:42:00 +0000
The number of space-related technology patent applications filed in China over the five-year period grew by 13.3 percent. SpaceNews.com
Thu, 19 Apr 2018 20:23:51 +0000
WASHINGTON — French fleet operator Eutelsat finished a lengthy 302 million euro ($372.9 million) sale of its stake in Spanish fleet operator Hispasat after gaining long-awaited approval from Spain’s government. The divestiture was first announced last May and expected to close that year, but required approval from Spain’s Council of Ministers, which didn’t occur until […] SpaceNews.com
Thu, 19 Apr 2018 18:55:51 +0000
The most contentious nomination process for a NASA administrator in the agency’s six-decade history came to an end April 19 when the Senate voted to confirm Jim Bridenstine. SpaceNews.com
Thu, 19 Apr 2018 18:42:07 +0000
Harris Corp. plans to offer the U.S. Air Force an updated version of a legacy sensor for future weather satellite. SpaceNews.com
Thu, 19 Apr 2018 17:21:02 +0000
Arianespace on April 19 announced a agreement Japan’s Broadcasting Satellite System Corporation BSAT and satellite manufacturer Space Systems Loral to launch the BSAT-4b satellite on an Ariane 5 rocket in 2020. SpaceNews.com
Thu, 19 Apr 2018 16:55:25 +0000
DARPA announced a prize competition April 18 to demonstrate the ability to rapidly launch small satellites, a competition whose regulatory challenges may tower over its technical ones. SpaceNews.com
Thu, 19 Apr 2018 14:00:53 +0000
Public-private partnerships have been used fairly extensively and effectively for funding space activities, and they are attracting even more attention as sources of public financing grow scarce. SpaceNews.com
Thu, 19 Apr 2018 13:41:27 +0000
Russia’s Proton rocket launched for the first time this year April 18 with a military communications satellite for the federation’s ministry of defense. SpaceNews.com
Thu, 19 Apr 2018 13:34:45 +0000
If a new commercial space station is “paid for by Taco Bell, it will be the Taco Bell Space Station,” said Benjamin Reed, deputy director for the NASA Goddard Space Flight Center’s Satellite Servicing Projects Division. SpaceNews.com
Thu, 19 Apr 2018 12:02:33 +0000
The host satellite, built by Danish cubesat specialist GomSpace, is a so-called 6U cubesat measuring 20x30x10 centimeters. SpaceNews.com
Thu, 19 Apr 2018 12:00:32 +0000
In anticipation of more business from rocket and satellite manufacturers, Ruag is ramping up investments in its U.S. operations in Alabama, Florida and in a research center in California’s Silicon Valley. SpaceNews.com
Thu, 19 Apr 2018 02:44:39 +0000
York Space Systems, a Denver-based satellite manufacturer, announced plans April 17 to work with Swiss satellite and rocket component supplier Ruag Space on payload adapters for York's S-Class satellites. SpaceNews.com
Thu, 19 Apr 2018 02:00:35 +0000
As NASA shifts its human spaceflight program towards a return to the moon, the programs supporting that new direction are creating opportunities for science both on and around the moon. SpaceNews.com
Wed, 18 Apr 2018 23:58:57 +0000
A SpaceX Falcon 9 successfully launched a NASA science mission April 18 that will look for planets orbiting other stars. SpaceNews.com
Wed, 18 Apr 2018 22:45:59 +0000
Boeing: The production of two new satellites for the Air Force will “move faster” than the typical WGS schedule. SpaceNews.com
Wed, 18 Apr 2018 22:10:58 +0000
A satellite startup that today announced SoftBank, Airbus, Bill Gates and OneWeb founder Greg Wyler as investors says it has plans to field a constellation of hundreds of satellites to provide global video of the Earth, but provided few details on how it will accomplish that goal. SpaceNews.com
Wed, 18 Apr 2018 22:00:12 +0000
Open Cosmos, a British startup planning to manufacture and operate inexpensive cubesats for customers, announced April 18 it raised $7 million in Series A funding in an investment round led by London-based BGF Ventures. 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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