|
 |
seeking millimeter wave collaborators for NASA research prop - RF
Cafe Forums
|
| cfrjlr
|
|
Post subject: seeking millimeter wave collaborators for NASA research
prop
Posted: Sat Apr 09, 2011 2:43 pm
|
|
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
USA Mobile (Sprint):
+1-503-320-3529
Skype: CFRJLR
AOL/AIM:
CFRJLR
Yahoo IM: CFRJLR
Google: CFRJLR
|
|
Posted 11/12/2012
|
|
|
|
