The inspiration for this book came from the Workshop on Oscillator Design held at International Microwave Symposium in Boston, Massachusetts, in June2000,whichreceivedveryfavorablefeedback.Ihavebeenveryfortunate toobtaincontributionstotheworkshopandtothisbookfrominternationally recognized experts. I would like to thank them all for outstanding contributions. I would also like to acknowledge Jacek Kudrewicz, Ganesh Basawapatna, and Jack Hale, on whose shoulders my personal oscillator knowledge rests.