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seeking millimeter wave collaborators for NASA research prop - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: seeking millimeter wave collaborators for NASA research prop
Posted: Sat Apr 09, 2011 2:43 pm 
 
Captain

Joined: Wed Oct 17, 2007 1:03 pm
Posts: 5
Location: Oregon, USA
There is an open NASA / NIAC BAA for game changing technologies, and there is some interest in wireless power transmission.

1) how can we increase / maximize DC to RF conversion efficiencies (35 - 350 GHz)?

2) what power efficiencies might be possible in the short term, medium term and long term.

3) About what level of investment would be required to improve device and chip conversion efficiencies ? Over what time frame ?

4) what technical approaches might there be ?

5) for an example of out of the box thinking: I hear that the losses in millimeter wave MMIC chips are a combinationbof dielectric losses and skin effect dissipation in conductors.

In the case of the latter, do you think there might be potential tobreduce losses via employing superconductors (instead of gold/silver) ?

Since about 1993, the highest temperature superconductor is a ceramic material consisting of thallium, mercury, copper, barium, calcium and
oxygen (HgBa2Ca2Cu3O8+δ) with Tc = 138 K.

There could be funding via NAIC BAA to pursue such research.

Best regards,

Charles F Radley - Assoc Fellow AIAA
USA Telephone: +1-551-579-4686
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Posted  11/12/2012

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