> Any suggestions on topologies, transistors, white papers, etc? I'm
> considering the NXP BFU590Q silicon bipolar transistor, which I have used
in
> a transformer feedback configuration at 100MHz with less than -180dBc/Hz
> PN.
You could take a look at the approach behind the option-K22
Am 10.01.20 um 03:01 schrieb jimlux:
On 1/9/20 5:38 PM, Lifespeed wrote:
Hi Time Nuts,
I have a need for a low phase noise, noise floor and noise figure
amplifier
at 400MHz. I have tried some off-the-shelf 50 ohm amplifiers, the
best of
which degrades phase noise by a couple dB. I'm
That's not possible at room temperature since thermal noise will limit the
residual PN to -180DbC/Hz with a noiseless amplifier and a +3dBm input.
Bruce
> On 10 January 2020 at 14:38 Lifespeed wrote:
>
>
> Hi Time Nuts,
>
>
>
> I have a need for a low phase noise, noise floor and noise
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of
jimlux
Sent: Thursday, January 9, 2020 6:02 PM
To: time-nuts@lists.febo.com
Subject: Re: [time-nuts] low phase noise, noise floor and noise figure
amplifier at 400MHz
So you've tried something like
On 1/9/20 5:38 PM, Lifespeed wrote:
Hi Time Nuts,
I have a need for a low phase noise, noise floor and noise figure amplifier
at 400MHz. I have tried some off-the-shelf 50 ohm amplifiers, the best of
which degrades phase noise by a couple dB. I'm working with a signal with
-172dBc/Hz PN,
Hi Time Nuts,
I have a need for a low phase noise, noise floor and noise figure amplifier
at 400MHz. I have tried some off-the-shelf 50 ohm amplifiers, the best of
which degrades phase noise by a couple dB. I'm working with a signal with
-172dBc/Hz PN, so not much tolerance for degradation
