Title:
RECEPTION DEVICE AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/210267
Kind Code:
A1
Abstract:
A reception device (1) comprises: an orthogonal mixer (10) which performs frequency conversion to convert a high-frequency signal into an I signal and a Q signal, which have a phase difference of 90 degrees therebetween; and a SAW device (20) which performs a phase conversion on the I signal and the Q signal output from the orthogonal mixer (10). The SAW device satisfies the relational equation of (α + 90 + n x 360 - 35.1) ≦ β ≦ (α + 90 + n x 360 + 35.1) or (α - 90 + n x 360 - 35.1) ≦ β ≦ (α - 90 + n x 360 + 35.1), assuming that α° is the phase rotation of the I signal and β° is the phase rotation of the Q signal.
Inventors:
KANDO HAJIME (JP)
Application Number:
PCT/JP2023/013811
Publication Date:
November 02, 2023
Filing Date:
April 03, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03D7/00; H03H9/42; H03D7/14; H03H9/64; H04B1/26
Foreign References:
| JP2007174084A | 2007-07-05 | |||
| JP2006197533A | 2006-07-27 | |||
| US20190207557A1 | 2019-07-04 | |||
| JP2008166956A | 2008-07-17 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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