Patent ID: 6275118
Filing Date: 2001-08-14
Classification: H03B,H03L

Abstract:
A push--push oscillator operating with a high frequency comprising:(a) a resonator circuit comprising:a transmission line of which first and second ends are left open; anda capacitance for frequency control coupled with said transmission line in parallel;(b) an oscillator circuit comprising:a first branch oscillator coupled with the first end at an input side of said first branch oscillator; anda second branch oscillator electrically identical to said first branch oscillator, said second branch being coupled with the second end at an input side of said second branch oscillator;(c) a first and a second fundamental-wave-terminals coupled to respective output terminals of said first and said second branch oscillators; and(d) an even-order-harmonic-output-terminal coupled to, via a coupling capacitance, a midpoint of said transmission line in a transmitting direction.