transforming phase slope into delay

Thread Starter

yef smith

Joined Aug 2, 2020
1,446
Hello, a single LC cell was made to test delay.the phase increases linearly.how do i find the delay my square wave will get from this slope?
my slope is 1.8 degrees for each 1Mhz.
Thanks.
1715410342583.png
 

DickCappels

Joined Aug 21, 2008
10,661
First, have a look at this article;
https://www.rfcafe.com/references/r...-delay-lines-radio-electronics-march-1953.htm

Because of the high harmonic content is rectangular waves, a simple LC delay will distort the waveform significantly. Probably not what you are after, unless you intend to slice the waveform with a comparator. In that case you can adjust the delay by adjusting the threshold

When delaying an analog signal I have had pretty good luck making a simulated transmission line from many LC stages, where the delay of each stage is a small fraction of the waveform being delayed.

Just look under the hood of an old Tektronix scope like the Tek535 and other pretty fast scopes from the 1950’s and 1960’s.
 
Top