Title:
SYNTHESIZER
Document Type and Number:
WIPO Patent Application WO/2016/167283
Kind Code:
A1
Abstract:
A fine adjustment synthesizer 1 comprises a fractional phase-locked loop having a reference integer divider 6, a phase comparator 7, a loop filter 8, a variable frequency oscillator 9, a mixer 4, a band pass filter 13, and a feedback path programmable decimal frequency divider 12. A coarse adjustment synthesizer 2 comprises an integer-type phase-locked loop having a reference integer divider 14, a phase comparator 15, a loop filter 16, a variable frequency oscillator 17, a band pass filter 19, and a feedback path programmable integer frequency divider 18. The output of a reference signal source 3 is inputted in parallel to both the fine adjustment synthesizer 1 and the coarse adjustment synthesizer 2. The output of the variable frequency oscillator 9 in the fine adjustment synthesizer 1 and the output of the variable frequency oscillator 17 in the coarse adjustment synthesizer 2 are guided to the mixer 4, and the output signal from the fine adjustment synthesizer 1 is guided to an output terminal 11.
Inventors:
YAMAUCHI KAZUHISA (JP)
TOKUMORI NOBUHIRO (JP)
MIYASAKA KENJI (JP)
FUJIWARA TAKASHI (JP)
KAWAMURA MASAKI (JP)
TOKUMORI NOBUHIRO (JP)
MIYASAKA KENJI (JP)
FUJIWARA TAKASHI (JP)
KAWAMURA MASAKI (JP)
Application Number:
PCT/JP2016/061902
Publication Date:
October 20, 2016
Filing Date:
April 13, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03L7/23; H03L7/185; H03L7/197
Foreign References:
| JP2005026891A | 2005-01-27 | |||
| JPH06188733A | 1994-07-08 | |||
| JP2012518336A | 2012-08-09 | |||
| JPH11205137A | 1999-07-30 | |||
| JP2007134832A | 2007-05-31 |
Other References:
See also references of EP 3276832A4
Attorney, Agent or Firm:
TAKAMURA, JUN (JP)
Jun Takamura (JP)
Jun Takamura (JP)
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