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Rajan Bedi

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CEO Spacechips

Rajan is currently CEO of Spacechips. Rajan worked at Astrium (now Airbus) for twelve years developing and researching space-grade electronics for telecommunication, navigation, Earth-observation and science missions. As Head of the Mixed-Signal Design Group, Rajan's team developed the hardware for the award-winning, channelising payload currently operating on-board the Alphasat telecommunication satellite.


Rajan Bedi

's contributions
  • 12.17.2013
  • 6 Comment(s)
Twinkle twinkle little stars!
  • 11.08.2013
  • 1 Comment(s)
Behaving passively!
  • 08.16.2013
  • 9 Comment(s)
Alphasat's Champagne moment!
  • 07.17.2013
  • 18 Comment(s)
You guys are dinosaurs!
  • 06.10.2013
  • 5 Comment(s)
Don't get lost!
  • 03.19.2013
  • 11 Comment(s)
Brown, lead-underpant moments
  • 02.08.2013
  • 1 Comment(s)
Out-of-this-World Design
  • 02.08.2013
  • 8 Comment(s)
Welcome - we have lift-off!
  • 07.17.2013
  • You guys are dinosaurs!
  • Hi James, great to hear from you as always. I totally agree with you, for a GEO telecommunication satellite that has to provide its operator continuous availability of service and revenue generating capability for up to 15 to 17 years, then Hi-Rel space-grade components are essential. Other applications and orbits have unique requirements and these should be assessed on a case-by-case basis when selecting parts and a payload architecture that meet the mission's needs. Let me know when you next visit the UK.
  • 06.10.2013
  • Don't get lost!
  • Arnold, some parts also offer on-die decoupling to improve the effectiveness of de-coupling. Some ICs are large and placing actual, off-die, de-coupling capacitors far away can do more harm than good. On-die termination and de-coupling have made PCB design easier, less expensive and improved performance. Rajan.
  • 06.10.2013
  • Don't get lost!
  • Jim, Many thanks for your feedback: you can reference Out-of-this-World Design on your web site. Regards, Rajan.
  • 03.19.2013
  • Brown, lead-underpant moments
  • Arny, many thanks for your positive feedback. We had a record turn-out at AMICSA 2012 last year - you should have come over and introduced yourself! I note your comment about laser testing and will write an article on this topic later in the year. Next month I will talk about Sat. Nav!
  • 03.19.2013
  • Brown, lead-underpant moments
  • Cris, many thanks for your comments, great to hear that you were able to fix the problem there and then and continue your work. Why is it that all the labs. and stores are closed and everyone else has gone home when such things happen ? A positive attitude is important!
  • 03.19.2013
  • Brown, lead-underpant moments
  • Richard, can you share your company's website address so I can forward to various test facilities please.
  • 03.19.2013
  • Brown, lead-underpant moments
  • Richard, when we left the facility last Saturday morning at half-past midnight, it was -15C. On our walk back to the hotel, someone was cycling on the path around the frozen lake. Six hours later as we boarded the return flight home, the temperature had dropped to -25C - could have done with some radiation then! In my opinion, everyone who designs space electronics should experience radiation testing to understand the effort required to de-risk and qualify new technologies.
  • 02.08.2013
  • Welcome - we have lift-off!
  • Hi Janine, my next article, Brown, Lead-Underpant Moments, will be about radiation testing. This will be posted on Monday and I hope to include a short video that shows SEEs happening in real-time.
  • 02.08.2013
  • Welcome - we have lift-off!
  • Nasa Guy, I note your comment about application driving sensitivity with different mission types having unique requirements, orbits and power-on times. However, there is a real skill in writing a JEDEC/ECSS-compliant radiation test plan which exercises the full functionality of a part at-speed during irradiation as a function of temperature and supply within the scheduled beam time. Unfortunately some providers of space-grade electronics as well as independent radiation test houses do not know how to fully test parts. My next post will discuss this topic in more detail.