Frequency Divider - Theory and Prototyping Example

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Frequency division is a very important topic.

Generally, frequency division is accomplished using digital circuits.
This regenerative technique becomes useful when dealing with microwave and mmWave frequencies.

In this video, Gregory explains how an analog frequency divider work and show the construction of the microwave prototype.

00:13 - Introduction
01:55 - Working Principle
03:36 - Topology Limitations
04:05 - Microstrip Circuit
05:56 - Topology Advantages
06:54 - How the circuit works

You can read the full article about the circuit here:

I also have a video about frequency multipliers

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AllElectronicsChannel

It's very cool that you share old school techniques, because a pro knows when older methods are still the best solution.

johnaweiss

This is the Thing !!!
is there also Analogue multiplayer ?

omsingharjit

Curious if there are ever issue with the startup time.

If no filters are employed, I'm also wondering what all possible frequency conditions it could 'lock' onto.

imzack

I got 2 questions: #1 - If the Speed of Light is 299, 792, 458 meters pers second, and I assume the velocity of the speed of waves in copper is 95% of "c", then am I correct to conclude that: 299, 792, 458 times 95% is 284, 802, 835.1 meters per second, divide by 800 million, you get a full wave (in copper) of .356 meters, which I converted to 14 inches full wave. So, are your copper strips 14 inches in length, 7 inches in length, or 3 1/2 inches in length? #2 - How far can you move away from your 1.6 Ghz input can you go before you no longer get 1/2 on your output ? Will 1.4 Ghz input give you 700 Mhz, or will you be too far from the center, to get "center" ?

jeremycole

Excellent work. Are these micorstrip lines all made by copper tape on a one sided PCB?

amirb

hi i want to record and digitize rf signals in 2 ghz with real time sampling my rf signal isnt repeatitive can I use this frequency divider to decrease signal frequency to record it with lower sample rate digitizer?

mofaelectronics

7:25 two transistors so it's not completely Passive

omsingharjit

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