Title:
４相発振回路及びＣＤＲ回路
Document Type and Number:
Japanese Patent JP6981097
Kind Code:
B2
Abstract:
A quadrature oscillation circuit includes a plurality of adjacent quadrature oscillators, wherein a first quadrature oscillator includes a first I-phase inductor, a first Q-phase inductor, and a first drive circuit that generates a first I-phase current passing the first I-phase inductor and a first Q-phase current passing the first Q-phase inductor such that phases of a first I-phase differential signal from the first I-phase inductor are different from phases of a first Q-phase differential signal from the first Q-phase inductor, a second quadrature oscillator includes a second I-phase inductor, a second Q-phase inductor, and a second drive circuit that generates a second I-phase current passing the second I-phase inductor and a second Q-phase current passing the second Q-phase inductor such that phases of a second I-phase differential signal from the second I-phase inductor are different from phases of a second Q-phase differential signal from the second Q-phase inductor.
Inventors:
Takashi Shiraishi
Application Number:
JP2017158175A
Publication Date:
December 15, 2021
Filing Date:
August 18, 2017
Export Citation:
Assignee:
富士通株式会社
International Classes:
H03B5/08; H03K3/282; H03B5/12; H03L7/08
Domestic Patent References:
| JP2010504676A | ||||
| JP2005341332A | ||||
| JP2015228563A |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito