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Patent Searching and Data


Title:
POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2019/008751
Kind Code:
A1
Abstract:
A first harmonic processing circuit (16) includes a first adjustment member for adjusting the harmonic impedance at an input terminal of a semiconductor amplifying element (5), and a second harmonic processing circuit (19) includes a second adjustment member for adjusting the harmonic impedance at an output terminal of the semiconductor amplifying element (5). Consequently, efficiency of the semiconductor amplifying element (5) can be improved even in the cases where the inductances of inductors, and the capacitances of capacitors, said inductors and capacitors being included in the first harmonic processing circuit (16) and the second harmonic processing circuit (19), respectively, are deviated from correct values.

Inventors:
KAWAMURA, Yoshifumi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
SUGITANI, Takumi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
HANGAI, Masatake (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
YAMANAKA, Koji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/024991
Publication Date:
January 10, 2019
Filing Date:
July 07, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H03F1/32
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (Akasaka Sanno Center Bldg. 5F, 12-4 Nagata-cho 2-chome, Chiyoda-k, Tokyo 14, 〒1000014, JP)
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