Title: Oscillatory circuit having two oscillators
Application Number: 200610152109 Application Date: 2006.09.11
Publication Number: 1929293 Publication Date: 2007.03.14
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03B5/04;H03B5/32;H03H9/17;H03H3/02;H03H9/02;H03H9/54
Applicant(s) Name: Agilent Technologies Inc. Address:
Inventor(s) Name:
Attorney & Agent: wangyi
Abstract:
    An oscillatory circuit. The oscillatory circuit includes a first oscillator, a second oscillator, and a mixer circuit. The first oscillator is configured to generate a first oscillating signal at a first frequency and has a first frequency temperature coefficient. The second oscillator is configured to generate a second oscillating signal at a second frequency and has a second frequency temperature coefficient. The second frequency is greater than the first frequency, and the second frequency temperature coefficient is less than the first frequency temperature coefficient. The mixer circuit is configured to receive the first oscillating signal from the first oscillator, to receive the second oscillating signal from the second oscillator, and to generate a mixer signal from the first and the second oscillating signals. The mixer signal comprises a signal component at a beat frequency. The beat frequency is equal to the difference between the second frequency and the first frequency.
Time: 50