On 9/14/13 11:22 AM, Joe Leikhim wrote:
Microwave injection locking of Magnetrons with beam steering phased
array. Lots of math!
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CDkQFjAD&url=http%3A%2F%2Fwww2.iee.or.jp%2Fver2%2Fhonbu%2F14-magazine%2Flog%2F2008%2F2008pdf-b%2F2008_09b_06.pdf&ei=vKY0UqywHIzs9ASOoYDAAQ&usg=AFQjCNGa_vBahvbPfxqNR8KzQ7RDzJV4tA&bvm=bv.52164340,d.eWU
I prefer the array of 2.45 GHz magnetrons in the weed burner.
http://typnet.net/Articles/WeedKiller.pdf
Vidmar, 2005, in Microwave Journal
By the way, googling "microwave weed burner" to find this article turned
up another application of microwave heating for a very different kind of
weed.
I keep waiting to see something like this show up at the science fair,
driven by an Arduino that recognizes the weeds and turns the microwaves
on and off.
Back in the day, Microwave Associates manufactured a pretty nifty GUNN
diode based FM microwave link for video cameras that operated in the
12-13 GHz band. The transmitter GUNN oscillator was pumped from a
crystal controlled multiplier chain. At the reciver, an AFC derived from
the discriminator kept the link stable.
the famous "gunnplexer" also available in the 10.5 and 24 GHz bands.
Crummy phase noise, so you're not going to be doing 1 bit per second,
but makes sending video using FM pretty darn easy.
Interestingly to time-nutters, since it was FM system, you could insert
a reference at the TX video input and extract it at the RX without any
noticible error. For giggles I connected a G5RV antenna to a TX and a
shortwave RX to the TR and could tune the SW band faithfully.
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