Title:
DOHERTY AMPLIFIER AND OUTPUT NETWORK THEREFOR, AND DESIGN METHOD FOR DOHERTY AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2024/092492
Kind Code:
A1
Abstract:
Embodiments of the present application provide an output network for a Doherty amplifier. The output network comprises a combined node, a primary output network, an auxiliary output network, and a combined matching network. The primary output network comprises a first sub-network and a second sub-network connected in series, and the auxiliary output network comprises a third sub-network, a fourth sub-network, and a fifth sub-network connected in series. The first sub-network and the third sub-network have the same circuit topology and each at least comprises an inductor and a capacitor. The fourth sub-network is connected between the third sub-network and the fifth sub-network. The second sub-network, the fourth sub-network, and the fifth sub-network have the same circuit topology and each at least comprises one of an inductor, a capacitor, and a transmission line. The combined matching network is configured such that node impedance at the combined node is complex impedance, and the primary output network and the auxiliary output network are configured such that the node impedance matches a target load impedance of a primary amplifier and an auxiliary amplifier.
Inventors:
LIU HAOYU (CN)
ZHENG SHUANGSHUANG (CN)
LIN LIANG (CN)
ZHENG SHUANGSHUANG (CN)
LIN LIANG (CN)
Application Number:
PCT/CN2022/128906
Publication Date:
May 10, 2024
Filing Date:
November 01, 2022
Export Citation:
Assignee:
SUZHOU WATECH ELECTRONICS CO LTD (CN)
International Classes:
H03F1/02
Foreign References:
| CN114696747A | 2022-07-01 | |||
| CN107332518A | 2017-11-07 | |||
| CN109728783A | 2019-05-07 | |||
| CN114050792A | 2022-02-15 | |||
| US20220158591A1 | 2022-05-19 | |||
| US9966903B1 | 2018-05-08 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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