asteroza + microwave   84

MICO Toastie
microwave toasted grilled cheese maker
microwave  cooking  utensil  cookware  toasted  sealed  crimped  bread  grilled  cheese 
7 days ago by asteroza
Two-Stage-to-Orbit Transporting System Combining Microwave Rocket and Microwave Thermal Rocket for Small Satellite Launch
Mirabo's air breathing laser lightcraft used lasers to ignite air plasma, this is proposing something similar using microwaves for a rocket booster stage, then beamed microwave thermal for the second stage.

Notable here is the determination that you can cheat the trajectory to favor a higher altitude initial vertical boost, take the gravity loss hit during a cold coast to the second beam director LoS, then have a longer second stage beamed thermal burn. Allegedly 3x payload compared to a UAV air drop launch to a single beam director site?

But how does a common microwave beam work here for first and second stages? Is the first beaming site only a pulsed microwave system? Does microwave PDE even work with continuous wave microwaves?
pulsejet  microwave  pulse  detonation  engine  PDE  rocket  thermal  beamed  propulsion  space  research  technology  japan 
december 2018 by asteroza
Microwave Rocket Team | Komurasaki Lab., UT, Japan.
Looking at laser/microwave beam powered air breathing pulsejet propulsion, which may be attractive as an SRB booster replacement for ground launch.
airbreathing  pulsejet  ground  launch  microwave  laser  beamed  propulsion  research  technology  space  rocket  engine 
december 2018 by asteroza
Fleet Satellite Communications System - Wikipedia
So brazilian pirate radio is using these, wonder if the prepper/HAM crowd is as well
satcom  UHF  EHF  unauthenticated  microwave  transmission  repeater  transponder  GEO  satellite  satcomms  survivalist  communication 
september 2018 by asteroza
Development and Short-Range Testing of a 100 kW Side-Illuminated Millimeter-Wave Thermal Rocket
So Parkin and crew as part of the MTLS project got to phase 2, demoing a millimeter wave beamed thermal rocket launch. Some reports are 33kW received rather than 100kW though
microwave  millimeter  wave  beamed  thermal  propulsion  rocket  space  research  technology 
may 2018 by asteroza
Transactions of the Symposium on Space Nuclear Power Systems, (5th) Held at Albuquerque, New Mexico on January 11, 1988. | National Technical Reports Library - NTIS
The PDF contains info on wheelguns, giant counterrotating flywheel hoops in space to supply power to SDI weapons, mainly railguns/particle accelerator cannons/free electron lasers that need huge amounts of power right now. Appears to expect to be trickle charged over time by a small space nuclear reactor (SNAP? atomic teakettle?). Also has an interesting microwave power beaming scenario from a nuke in mars synchronous orbit to a ground rover, high performance radiators, including a fabric heatpipe radiator, a curie point magnetic liquid droplet radiator, and other power conversion concepts.
SDI  wheelgun  space  counterrotating  flywheel  hoop  energy  storage  power  generator  FEL  free  electron  laser  railgun  neutraal  particle  accelerator  cannon  military  WPT  microwave  transmission  mars  MSO  rectenna  rotating  loop  pulsed  fabric  radiator  heat  thermal  management 
march 2018 by asteroza
Appears to be japanese venture working on rectennas for wireless power transmission to/from a space solar power system. See also
japan  space  research  microwave  rectenna  wireless  power  transfer  WPT  SPS 
february 2018 by asteroza
Product — Heat food, anywhere.
One example of the new solid state RF amplifier microwave ovens, in a portable camping format.
portable  small  compact  form  factor  camping  LDMOS  solid  state  RF  amplifier  microwave  oven  cooking  hardware  electronics  devices 
september 2017 by asteroza
Taking Back Control: Next-Generation Cooking with Solid-State RF Energy [Speaker's Corner] - IEEE Journals & Magazine
Solid state microwave emitters with closed loop feedback could make superior microwave ovens. Offshoot of phased array radar work? Plus potentially more compact and efficient, leading to portable microwave ovens...
solid  state  ceramic  semiconductor  LDMOS  RF  microwave  amplifier  closed  loop  feedback  cooking  oven  kitchen  hardware  electronics  devices 
september 2017 by asteroza
Using carbon laced 3D printed plastic and a pinpoint microwave that heats the carbon to spot weld plastic stuff together, similar to ultrasonic welding?
3D  printing  fabbing  microwave  plastic  welding  joining  manufacturing  research  technology 
july 2017 by asteroza
Solar Power Satellites
From the guy who gave us HESPeruS, a new shape for an SPS that appears to be more flexible in orientation...
CASSIOPeiA  SPS  SSP  microwave  phased  array  solar  power  helix  heliogyro  molniya  orbit  Delicious 
june 2017 by asteroza
So using solid state chip RF microwave amplifier to improve portability weight. Reminds me of that scene in Star Trek where Spock pulls out a marshmallow from a portable replicator...
portable  solid  state  amplifier  microwave  cooking  camping  gear  hardware  electronics  devices  food  heater  oven  Delicious 
may 2016 by asteroza
Apparently a microwave trick to exfoliate graphene, via the University of Tokyo
graphene  manufacturing  research  technology  materials  microwave  japan  exfoliation  Delicious 
january 2016 by asteroza
Sounds like a phased array antenna for the transmitter, so not resonance based? Plus it stomps all over the high wifi bands. Part of PMA, so the underlying tech should be inductive, which suggests the phased array concept even more.
wireless  remote  charging  recharging  technology  research  microwave  ISM  band  MIMO  Delicious 
july 2015 by asteroza
Rays of Hope with pix1.doc - Google Drive
Proposal for laser boosted Skylons to bootstrap a microwave SPS construction campaign. Neat trick is using an initial bootstrap laser/rectenna sat assembled in LEO, which uses a ground microwave array to electric thrust up to GEO, then uses the same ground microwave array to power laser ops from GEO onto LEO laser skylons and laser tugs. As SPS hardware arrives in GEO, the laser slowly becomes self powered.
rectenna  SSTO  bootstrap  technology  microwave  solar  space  research  propulsion  skylon  proposal  SPS  SSP  power  laser  Delicious 
september 2013 by asteroza
IEEE Proceedings for June 2013, lots of SSP wireless power transmission stuff
RF  technology  2013  IEEE  june  WPT  microwave  solar  space  transmission  research  wireless  SPS  SSP  power  Delicious 
july 2013 by asteroza
CHAMP - lights out (Video)
Interesting description. It implies a single missile, possibly a cruise missile, was firing multiple HPM EMP DEW beams/bursts at multiple targets. Which implies that it's a multishot DEW weapon, so it probably isn't using a flux compression generator for the power source (as it would self destruct). Raytheon Ktech makes pulsed power systems, so clearly an interesting pulsed power source is onboard.
Raytheon  Boeing  energy  directed  DEW  attack  devices  electronics  hardware  microwave  HPM  EMP  military  weapon  missile  counterelectronics  CHAMP  Delicious 
october 2012 by asteroza
NASA’s Dirty Secret: Moon Dust
interesting throwaway quote, about using low power microwaves to melt surface regolith for applications like roads and landing pads, to prevent dust being thrown up.
moon  regolith  microwave  melt  hardening  melting  solidification  regolith  soil  processing  road  construction  space  infrastructure  transportation  Delicious 
november 2011 by asteroza
Orbital Technologies Corporation - Propulsion, Space Resources and Energy Systems
Apparently working on a microwave electric thermal thruster using water as a plasma monopropellant. Sort of like VASIMR?
Orbitec  vortex  combustion  cold  wall  coaxial  reverse  microwave  electric  electrothermal  thermal  thruster  MET  space  propulsion  technology  research  plasma  water  monopropellant  propellant  fuel  liquid  VASIMR  Delicious 
october 2011 by asteroza
NASA - NASA Announces Two Game-Changing Space Technology Projects
This contract had LaserMotive written all over it, but Escape Dynamics didn't get a piece. Which is strange since LaserMotive, is, well, all about lasers, while Escape Dynamics is all about microwaves.
NASA  beamed  power  propulsion  research  laser  microwave  space  technology  beaming  aerospace  Delicious 
september 2011 by asteroza
Microwave and waste heat reformation holds prospect of improving fuel energy content and reducing CO2 - Ricardo
Using engine waste heat to heat diesel fuel, to reduce input energy requirements for a microwave diesel fuel reformer producing syngas on the fly for an engine.
Ricardo  HeatWave  recuperated  diesel  fuel  microwave  reformer  syngas  production  engine  motor  efficiency  automotive  technology  green  energy  Delicious 
september 2011 by asteroza
The Prometheus Gas Turbine Project Introduces A New Electric Gas Turbine
Is this for real? Something fishy about this (okay, yes, diesels have a better SFC than gas turbines), since this doesn't seem to be a special case of a generic turbocharged diesel. There have been direct compound piston diesel gas turbine hybrids before (turbo-compound) in aviation, and a terrestrial version could easily include electric reheat of the diesel exhaust before turbine entry to emulate this concept. I suppose decoupling the diesel from the compressor/turbine (turbocharger) stack via electricity gets over the mass flow limits of the diesel. In some ways this is similar to the newer electric assist turbochargers, which can function in both motor and generator modes (generator mode limits turbo RPM to eliminate the need for a wastegate).
electric  heating  element  microwave  combustor  gas  turbine  power  generator  hybrid  compound  diesel  green  energy  low  SFC  Delicious 
april 2011 by asteroza
WowBacon Cooker
For a split second I thought it was a pitcher of bacon.
WowBacon  microwave  bacon  cooker  frame  food  kitchen  cooking  utensils  Delicious 
april 2011 by asteroza
This is the big USEF japan consortium of companies along with JAXA developing SPS tech, with a nominal target goal of 2030, but utterly not addressing the spacelift cost issue
japan  JAXA  space  solar  power  SBSP  SSP  SPS  remote  beaming  laser  microwave  rectenna  green  energy  satellite  orbital  research  Delicious 
march 2011 by asteroza
Industrial microwave pyrolysis of wood debris into biochar
Carbonscape  NZ  biochar  microwave  pyrolysis  CCS  CO2  charcoal  coal  carbon  capture  reduction  negative  green  power  energy  technology  Delicious 
may 2009 by asteroza
welsom_isdc_reed.pdf (application/pdf Object)
Interesting arguement that a SPS demonstrator can be built now with COTS/near COTS hardware, taking advantage of mass production of terrestrial products to reduce costs. The primary tricks being accepting losses in efficiency and overcoming it by reducing system mass, so the actual W/Kg is still higher. Thin film solar, carbon fiber booms, thin film inflatable reflectors and optics, power equipment mass reductions, and lower cost space access (SpaceX) are the COTS components that make at least the demonstrator possible. There is the interesting talk of making sure most technology/products are dual use, such as wireless power transmission to HALE LTA UAV sensor blimps to offload payload power requirements.
green  energy  power  generator  plastic  infrastructure  space  carbon  solar  film  thin  SBSP  SPS  CFRP  fiber  reinforced  boom  wireless  transmission  WPT  microwave  laser  COTS  hardware  electronics  devices  materials  science  research  technology  fil  cell  filetype:pdf  media:document  Delicious 
february 2009 by asteroza
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