Title:
DIRECTIONAL COUPLER AND SEMICONDUCTOR CHIP
Document Type and Number:
WIPO Patent Application WO/2020/174580
Kind Code:
A1
Abstract:
This directional coupler (1) is configured to include: a resistive element (21) having one end connected to a first terminal (11) and the other end connected to a second terminal (12); a first amplification circuit (34) that outputs a current directly proportional to a first voltage applied to the one end of the resistive element (21) and a current directly proportional to a second voltage applied to the other end of the resistive element (21); a second amplification circuit (35) that, when a signal flows from the first terminal (11) to the second terminal (12), outputs a first current having a polarity different from that of the current output from the first amplification circuit (34) and directly proportional to a voltage difference between the first voltage applied to the one end of the resistive element (21) and the second voltage applied to the other end of the resistive element (21), and when the signal flows from the second terminal (12) to the first terminal (11), outputs a second current directly proportional to the voltage difference between the first voltage and the second voltage and having a polarity different from that of the current output from the first amplification circuit (34); and a first adder circuit (36) that outputs, to a third terminal (13), a signal having a voltage value directly proportional to the sum of the current output from the first amplification circuit (34) and the first current or a signal having a voltage value directly proportional to the sum of the current output from the first amplification circuit (34) and the second current.
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| JPH06350394 | CIRCULATOR |
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Inventors:
FUJIWARA TAKANOBU (JP)
HAGIWARA TATSUYA (JP)
TSURU MASAOMI (JP)
HAGIWARA TATSUYA (JP)
TSURU MASAOMI (JP)
Application Number:
PCT/JP2019/007309
Publication Date:
September 03, 2020
Filing Date:
February 26, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03H11/38
Foreign References:
| JPS513830A | 1976-01-13 | |||
| JP2009139223A | 2009-06-25 | |||
| JP2002298725A | 2002-10-11 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
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