Multiple-push oscillator

• US 6,310,522 B1
• Filed: 09/07/2000
• Issued: 10/30/2001
• Est. Priority Date: 09/07/2000
• Status: Expired due to Fees

• Current Assignee: Airwave Technologies Incorporated
• Original Assignee: Airwave Technologies Incorporated
• Inventors: Tang, Yu-Lung, Wang, Huei
• Primary Examiner(s): MIS, DAVID C
• Application Number:
  US09/657,177
• Time in Patent Office: 418 Days
• Field of Search: 331/46, 331/56, 331/117.R, 331/117.FE, 331/117.D, 331/172
• US Class Current: 331/56
• CPC Class Codes: H03B 21/00 Generation of oscillations by combining unmodulated signals of different frequencies H03B19/00 takes precedence; frequency changing circuits in general H03D
• CPC Class Codes: H03B 2202/07 Reduction of undesired oscillations through a cancelling of the undesired oscillation
• CPC Class Codes: H03B 27/00 Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs

Abstract

The present invention proposes a multiple-push oscillator for providing a high-frequency signal. The multiple-push oscillator combines N (at least 3) fundamental oscillators. Through the design of circuit connection, the N fundamental oscillators will operate at odd modes with phase differences of 360/N degrees between their output currents to obtain an output signal of frequency at least three times as large as that of the fundamentals. Therefore, a high-frequency signal source can be more easily designed by the present invention. Moreover, the present invention has the characteristics of high transistor gain and high resonator Q factor.

Claims

1. A multiple-push oscillator comprising N fundamental oscillators and used to provide a high-frequency signal, N being at least 3, output currents of odd-mode oscillation of said N fundamental oscillators being excited to obtain an output signal of frequency N times as large as that of the fundamentals through the design of circuit connection.

2. The multiple-push oscillator as claimed in claim 1, wherein said multiple-push oscillator comprises N oscillators and operates at odd mode of which the output currents of said N fundamental oscillators have phase differences of 360/N degrees.