Title:
HARMONIC POWER AMPLIFYING CIRCUIT WITH HIGH EFFICIENCY AND HIGH BANDWIDTH AND RADIO-FREQUENCY POWER AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2018/035689
Kind Code:
A1
Abstract:
A harmonic power amplifying circuit with high efficiency and high bandwidth and a radio-frequency power amplifier. The circuit comprises: an input matching network (11), a transistor (M), and an output matching network (12); a gate of the transistor (M) is connected to an output end of the input matching network (11), a drain thereof is connected to an input end of the output matching network (12), and a source thereof is grounded; the output matching network (12) enables a lower sideband of the harmonic power amplifying circuit to work in a continuous inverse F amplification mode and an upper sideband of the harmonic power amplifying circuit to work in a continuous F amplification mode; the output matching network (12) and a parasitic network of the transistor (M) form a low pass filter. By means of the transition from the continuous inverse F power amplifier working mode to the continuous F power amplifier working mode, the efficiency of a continuous harmonic control power amplifier is effectively improved to be higher than 60%, a relative bandwidth is improved to be higher than 80%, and the harmonic impedance is simple to match and easy to realize.
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Inventors:
ZHU SHOUKUI (CN)
DING QING (CN)
DING QING (CN)
Application Number:
PCT/CN2016/096274
Publication Date:
March 01, 2018
Filing Date:
August 22, 2016
Export Citation:
Assignee:
CHINA COMMUNICATION MICROELECTRONICS TECH CO LTD (CN)
CHINA COMMUNICATION TECH CO LTD (CN)
CHINA COMMUNICATION TECH CO LTD (CN)
International Classes:
H03F3/20
Domestic Patent References:
| WO2012145540A1 | 2012-10-26 |
Foreign References:
| CN106208972A | 2016-12-07 | |||
| CN205945655U | 2017-02-08 | |||
| CN103986421A | 2014-08-13 | |||
| CN103236430A | 2013-08-07 | |||
| CN104185955A | 2014-12-03 |
Other References:
See also references of EP 3503388A4
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
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