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Butler Oscillator Design - RF Cafe Forums

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layla

Post subject: Butler Oscillator Design Posted: Wed Aug 16, 2006 3:13 pm

Captain

Joined: Thu Aug 10, 2006 7:09 pm

Posts: 7

I need to design a 315MHz crystal oscillator. I'll go for a Butler Oscillator with a crystal running at 105MHz then use a tank circuit on the collector to get the 3rd harmonic thus achieving the needed 315MHz. My problem is that I don't know the exact math I have to use to calculate the component values of the oscillator. I know the circuit model and the only thing I found online was general tips on the design. I'd appreciate any advice on how to find out the exact values I need for this circuit.

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fred47

Post subject: Butler OscillatorPosted: Mon Aug 28, 2006 11:17 pm

General

Joined: Wed Feb 22, 2006 3:51 pm

Posts: 104

Hi!

See pages 250-279 of Design of Crystal and Other Harmonic Oscillators by Benjamin Parzen with Arthur Ballato.

It was published in 1983 by Wiley-Interscience, and is available by inter-library loan if your library doesn't have it.

His 29 pages on a single oscillator is pretty exhaustive and detailed.

Good Luck!

Fred

Posted  11/12/2012

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