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[SOLVED] please somebody help for klystron based or magnetron based MPM

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lokesh88

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can any one tell me klystron based or magnetron based microwave power module....i Google search lot but not even found 1 product ....if u know please help me....
 

Dear friend:

Without any specification of what you want there cannot be any reasonable response.
You can check museums, e-bay, or search for a real thing if you know what you need.
 
Did you review the range of commercially available microwave devices, e.g. used for industrial heating purposes, like the below shown products **broken link removed**
 
i'm looking for radar, satellite communication or electronic warfare MPM products....specification can be anything...i just wanted to survey products for these application.i think now its clear.please let me any products for these application.
 

I see. Unfortunately not my field of microwave applications.
 

Here is survey report for MPM on military application and their critical parameters effecting the system.
 

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OK well you and the report are talking about two different things

A klystron or magnetron can generate (depending on the model ) substantial power directly at a given frequency. eg a magnetron in a microwave oven 600++ Watts at 2.45GHz .... hi power and fixed freq

The report is talking about TWT's.... TWT = Travelling Wave Tube = these are amplifiers ( not signal generators) for various microwave bands and are generally reasonably broad in freq ie. any given one will usually cover several GHz in freq.

So my question is.... What are you really after ? a hi power signal generator like a klystron or magnetron or
are you after a TWT amplifier to put on the output of your low power microwave signal generator ?

Dave
 
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i'm not after only TWT or magnetron or klystron. i wanted microwave power module (MPM) it is transmitter used for military application such as for radar, ECM , communication etc. this transmitter has vaccum tube for power amplifiers it may be TWT or magnetron or klystron or solid state power amplifiers or may be hyrid of vaccum tubes and solid state power amplifier. initial i posted this thread to know any mpm which has magnetron or klytron as power amplifiers. but there are few modules having magnetron or klyston as power amplifier and it is not suitable for military application.my report gives an idea about product available for military applications.
davenn said:
OK well you and the report are talking abour two different things

A klystron or magnetron can generate (depending on the model ) substantial power directly at a given frequency. eg a magnetron in a microwave oven 600++ Watts at 2.45GHz .... hi power and fixed freq

The report is talking about TWT's.... TWT = Travelling Wave Tube = these are amplifiers ( not signal generators) for various microwave bands and are generally reasonably broad in freq ie. any given one will usually cover several GHz in freq.

So my question is.... What are you really after ? a hi power signal generator like a klystron or magnetron or
are you after a TWT amplifier to put on the output of your low power microwave signal generator ?

Dave
Click to expand...
 

lokesh88 said:
SNIP . initial i posted this thread to know any mpm which has magnetron or klytron as power amplifiers. but there are few modules having magnetron or klyston as power amplifier SNIP .
Click to expand...

As I said in my previous post.... Magnetrons and Klystrons are NOT power amplifiers. They are microwave oscillators that vary from low to hi power output. You seem to still have a misunderstanding on what you need, and as a result we are not able to give you specific answers.

cheers
Dave
 

We are radar vendor. And we use Klystrons to amplify signal to near 1MW. We use CPI klystron tube. You can google CPI.
 
Hey Tony

interesting stuff and some WOW specifications :) one there, for 3kW output, its producing 9kW of heat!!!

maybe I need to revise my understanding of klystrons. I had always been taught they were oscillators and not amps. looks like they can be both.

Dave

PS been doing a bit of reading....




very similar to the TWT ... we live and learn :)
 
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Hi, Dave,
In the picture you posted, obviously there are a microwave input port. That determines the output frequency. And the klystron can work in a bandwidth, say 50M. But it only output a 5M bandwidth pulse signal.
 

hi Tony,
ok .... are klystron amps typically narrow band ? 100MHz or so, or are capable of multi GHz bandwidth as a lot of TWT's are ?

Dave
 

thanks tony... @davenn for details on mpm u can refer Microwave tube transmitters by L sivan book its good one.
 

Hi, Dave,
Klystron Amp are narrow band, the klystron of CPI we used only have 50M bandwidth.
And weather radar pulse is as narrow as 0.2us, that is 5M bandwidth, SO klystron is fitable.
 

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