[ARC5] 77 GHZ

[Mike Feher]

Yes, I have some reflex klystrons that are in that frequency range and are
over 50 years old. Just check out the Microwave Engineers Handbook and you
will find a lot of them. Of course, now, it is done in solid state for the
small sensors. 73 - Mike 

Mike B. Feher, N4FS
89 Arnold Blvd.
Howell, NJ, 07731
732-886-5960 


-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of J. Forster
Sent: Friday, November 15, 2013 11:07 AM
To: Robert Eleazer
Cc: arc5 at mailman.qth.net
Subject: Re: [ARC5] 77 GHZ

I've seen hardware up to at least 110 GHz. The gap between microwaves and IR
was bridged at least 30 years ago.

-John

=====================


> Last night I was talking to a guy whose company makes radars for such 
> applications as airfield ground surveillance.  He says it operates on 
> 77 GHZ.  I had no idea that anyone was using frequencies that high.
>
> Wayne
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