Title:
CIRCUIT CAPABLE OF EXTENDING DYNAMIC RANGE OF RADIO-FREQUENCY OUTPUT POWER OF 5.8 GHZ FREQUENCY BAND
Document Type and Number:
WIPO Patent Application WO/2017/166216
Kind Code:
A1
Abstract:
A circuit capable of extending a dynamic range of the radio-frequency output power of a 5.8 GHz frequency band, the circuit comprising a radio-frequency chip, a plurality of stages of radio-frequency power amplifiers (G1,..., Gn) and a radio-frequency output unit which are connected in sequence. The radio-frequency chip is used for outputting a radio-frequency signal of a 5.8 GHz frequency band. The plurality of stages of radio-frequency power amplifiers (G1,..., Gn) are used for performing gradual amplification processing on the radio-frequency signal of the 5.8 GHz frequency band. Short circuit switches (S1,..., Si) are connected in parallel to two ends of at least one stage of radio-frequency power amplifier of the plurality of stages of radio-frequency power amplifiers (G1,..., Gn). When the short circuit switches (S1,..., Si) are closed, corresponding radio-frequency power amplifiers (G1,..., Gn) can be short-circuited. States of the short circuit switches (S1,..., Si) depend on a power level of the radio-frequency signal of the 5.8 GHz frequency band. The radio-frequency output unit is used for outputting the amplified radio-frequency signal of the 5.8 GHz frequency band. The circuit extends a dynamic range of output power.
Inventors:
WU XIAOBIN (CN)
WU ZHAOCHUN (CN)
ZHOU ZONGYI (CN)
WU ZHAOCHUN (CN)
ZHOU ZONGYI (CN)
Application Number:
PCT/CN2016/078171
Publication Date:
October 05, 2017
Filing Date:
March 31, 2016
Export Citation:
Assignee:
KZ BROADBAND TECH LTD (CN)
International Classes:
H04B1/04; H03F3/189; H03F3/20
Foreign References:
CN1154610A | 1997-07-16 | |||
CN104852749A | 2015-08-19 | |||
US6127886A | 2000-10-03 | |||
CN103095229A | 2013-05-08 | |||
CN103490802A | 2014-01-01 | |||
CN103312278A | 2013-09-18 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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