Re: HPM weapons

D from BC <myrealaddress@xxxxxxxxx> wrote in
news:7v8013pprrqvtechp6i52dp26tfn39htkv@xxxxxxx:

On Sun, 01 Apr 2007 14:18:08 -0700, John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:



A recent issue of Aviation Week had some articles on
high-power-microwave weapons. There's a blurred photo of a
BAE-developed switching gadget that looks like a coffee-stirrer-sized
slab of white ceramic with some dark strips deposited on top. The
strips may be something like GaAs or possibly amorphous diamond. It's
the heart of a 4x4 inch "tile" emitter.

Each tile apparently has a dc/dc converter and a storage capacitor.
The cap is charged to 9KV and the strip thing is blasted by a
diode-pumped yag laser. It switches on in picoseconds, dumping 30,000
amps (270 megawatts) into a wideband antenna built into the surface of
the tile. A plane can be covered with these to form an
electronically-steered transmit antenna capable of beam-forming
something like 10 GW of impulse RF, with much higher powers expected
in a few years. This will illuminate a stealth aircraft 100 miles
away, or fry the electronics of an enemy plane or incoming missile.
Navy versions could hit terawatts, enough to shut down everything on
an enemy ship. There's talk of using these against roadside munitions,
too.

google has a lot of hits.

John


What..shielded electronics don't work???
If that screen on my microwave oven door doesn't cook me at 1kW...,
I'm wondering how a microwave burst (from a distant) is going to fry
shielded electronics..
D from BC

"shielding" is measured in DB of attenuation,it's not a total block of the
pulse.If the pulse is powerful enough,it will generate levels of energy
high enough to harm the "shielded" electronics.

--
Jim Yanik
jyanik
at
kua.net
.

Relevant Pages

  • Re: HPM weapons
    ... BAE-developed switching gadget that looks like a coffee-stirrer-sized ... strips may be something like GaAs or possibly amorphous diamond. ... Each tile apparently has a dc/dc converter and a storage capacitor. ... or fry the electronics of an enemy plane or incoming missile. ...
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