[time-nuts] Close in phase noise of microwave VCOs

Bob Camp kb8tq at n1k.org
Sat Jun 20 00:30:53 EDT 2015


Hi

One of the most interesting things about the last paper mentioned:
> On Jun 19, 2015, at 8:57 PM, Charles Steinmetz <csteinmetz at yandex.com> wrote:
> 
> Rick wrote:
> 
>> However, a better tutorial would be the one written by
>> HP's Dieter Scherer which was published in Microwaves
>> & RF Magazine (or possibly Microwave Journal).  I believe
>> the same content was available from HP as an Ap Note or
>> something.
> 
> I suspect the paper you are referring to is:
> 
> Design Principles and Test Methods for Low Phase Noise RF and Microwave Sources (Scherer, 1978)
> 
> It is available on Didier's site at:
> 
> <http://www.ko4bb.com/manuals/download.php?file=03_App_Notes_-_Proceedings/Scherer_Low_noise_source_design_and_test.pdf>
> 
> There are two other Scherer papers there:
> 
> Generation of Low Phase Noise Microwave Signals (Scherer, 1981)
> <http://www.ko4bb.com/manuals/download.php?file=03_App_Notes_-_Proceedings/Scherer_Low_PN_Signal_Generation.pdf>
> 
> The "Art" of Phase Noise Measurement (Scherer, 1985)
> <http://www.ko4bb.com/manuals/download.php?file=03_App_Notes_-_Proceedings/Scherer_Art_of_PN_measurement.pdf>
> 
^^^^^^^^^ this one

> Best regards,
> 
> Charles
> 

is that it has a phase noise plot on an open loop microwave source down to 10 Hz. Not quite the VCO Jim
was looking for, but close ….

Bob

> 
> 
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