Title:
VOLTAGE-CONTROLLED OSCILLATOR
Document Type and Number:
WIPO Patent Application WO/2021/024345
Kind Code:
A1
Abstract:
A first phase adjuster (11) adjusts the phase of either a first or second AC voltage (V1, V2) generated in a negative resistance circuit (10), such that the shift amount φ in a first variable phase shifter (12) is kept within the range of 0° ≤ φ < 180° and outputs same to the first variable phase shifter (12). A second phase adjuster (21) adjusts the phase of the other out of the first and second AC voltages (V1, V2) generated in the negative resistance circuit (10), such that the shift amount φ at a second variable phase shifter (22) is within the range of 0° ≤ φ < 180° and outputs same to the second variable phase shifter (22). As a result, a variable range of 0° ≤ φ < 360° is no longer required in the first and second variable phase shifters (12, 22) and a wide variable range can be achieved while suppressing increase in circuit area, complexity, and pass loss.
Inventors:
JO TERUO (JP)
NAGATANI MUNEHIKO (JP)
NOSAKA HIDEYUKI (JP)
NAGATANI MUNEHIKO (JP)
NOSAKA HIDEYUKI (JP)
Application Number:
PCT/JP2019/030675
Publication Date:
February 11, 2021
Filing Date:
August 05, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H03B5/08; H03B5/12; H03L7/099
Foreign References:
| US9379663B1 | 2016-06-28 | |||
| JP2018011167A | 2018-01-18 | |||
| JP2008042275A | 2008-02-21 | |||
| JP2014506102A | 2014-03-06 | |||
| JP2016220135A | 2016-12-22 | |||
| US20080174378A1 | 2008-07-24 |
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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