WO2017166216A1 - Circuit apte à étendre la plage dynamique d'une puissance de sortie radiofréquence d'une bande de fréquences de 5,8 ghz - Google Patents

Circuit apte à étendre la plage dynamique d'une puissance de sortie radiofréquence d'une bande de fréquences de 5,8 ghz Download PDF

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Publication number
WO2017166216A1
WO2017166216A1 PCT/CN2016/078171 CN2016078171W WO2017166216A1 WO 2017166216 A1 WO2017166216 A1 WO 2017166216A1 CN 2016078171 W CN2016078171 W CN 2016078171W WO 2017166216 A1 WO2017166216 A1 WO 2017166216A1
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WO
WIPO (PCT)
Prior art keywords
power
radio
radio frequency
frequency
ghz
Prior art date
Application number
PCT/CN2016/078171
Other languages
English (en)
Chinese (zh)
Inventor
邬晓斌
吴兆春
周宗仪
Original Assignee
宽兆科技(深圳)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宽兆科技(深圳)有限公司 filed Critical 宽兆科技(深圳)有限公司
Priority to PCT/CN2016/078171 priority Critical patent/WO2017166216A1/fr
Publication of WO2017166216A1 publication Critical patent/WO2017166216A1/fr

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits

Definitions

  • the invention belongs to the field of power amplifiers in a mobile communication network, and particularly relates to a circuit capable of expanding the dynamic range of the RF output power in the 5.8 GHz band.
  • the technical problem to be solved by the present invention is to provide a circuit capable of expanding the dynamic range of the RF output power in the 5.8 GHz band, aiming at realizing the RF gain attenuation function and increasing the output power dynamics of the circuit based on the existing optional RF device. range.
  • the present invention provides a circuit for extending the dynamic range of the RF output power in the 5.8 GHz band, the circuit comprising a sequentially connected RF chip, a plurality of stages of RF power amplifiers, and an RF output unit;
  • the radio frequency chip is used to output a radio frequency signal in a 5.8 GHz band
  • the plurality of stages of radio frequency power amplifiers are configured to perform step-by-step amplification processing on the RF signals in the 5.8 GHz frequency band; at least one of the plurality of stages of the RF power amplifiers has a short circuit switch connected in parallel at both ends thereof, when the short circuit is When the switch is closed, the corresponding RF power amplifier can be short-circuited, and the state of the short-circuit switch depends on the power level of the RF signal in the 5.8 GHz band;
  • the radio frequency output unit is configured to output an RF signal of the 5.8 GHz band after the amplification process.
  • the plurality of stages of radio frequency power amplifiers include a primary RF power amplifier and a secondary RF power amplifier; the primary RF power amplifier has a power gain of G1 and the short circuit switch is connected in parallel; the secondary RF power amplifier The power gain is G2;
  • the short-circuiting switch is used to close the RF signal of the 5.8 GHz band in which the RF chip output power is reduced to the lowest power, and is used before the RF signal of the 5.8 GHz band in which the RF chip output power is increased to the highest power. disconnect.
  • the present invention has the beneficial effects that the present invention provides a circuit for extending the dynamic range of the RF output power in the 5.8 GHz band, and implementing the 5.8 GHz RF gain attenuation function based on the existing optional device.
  • the dynamic range of the output power of the circuit is expanded; it can better meet the requirements of different wireless technology standards such as WIFI, WIMAX, LTE, and can better utilize the spectrum resources of 5.8 GHz.
  • FIG. 1 is a circuit diagram of a dynamic range of a radio frequency output power in a scalable 5.8 GHz band according to an embodiment of the present invention
  • FIG. 2 is a circuit diagram of two RF power amplifiers provided by an embodiment of the present invention.
  • the main implementation idea of the present invention is that a plurality of RF power amplifiers are connected between the RF chip and the RF output unit, and at least one of the plurality of RF power amplifiers has a short circuit switch connected in parallel with both ends of the RF power amplifier.
  • the circuit includes a radio frequency chip connected in sequence, a plurality of stages of radio frequency power amplifiers, and a radio frequency output unit;
  • the radio frequency chip is used for outputting a radio frequency signal in a 5.8 GHz band, and the power of the radio frequency signal is represented as Pin;
  • the plurality of stages of radio frequency power amplifiers are used for step-by-step amplification processing of the radio frequency signals in the 5.8 GHz band; the plurality of stages of radio frequency power amplifiers are sequentially represented as PA1, ..., PAn, and their powers are sequentially expressed as G1, ...
  • the short-circuiting switch S When the short-circuiting switch S is closed, the corresponding radio frequency power amplifier can be short-circuited, and the state of the short-circuiting switch S depends on the power level of the radio frequency signal of the 5.8 GHz band.
  • the short circuit switch is closed; before the output power of the radio frequency chip is increased to the highest power PinH, the short circuit switch is turned off; The closed state is controlled by internal software.
  • the radio frequency output unit is configured to output an RF signal of the 5.8 GHz frequency band after the amplification process, and the power of the radio frequency signal is represented as Pout.
  • the circuit includes a radio frequency chip, a primary RF power amplifier PA1, a secondary RF power amplifier PA2, a radio frequency output unit, and a short circuit switch S;
  • the primary radio frequency power amplifier PA1 is connected to the radio frequency chip for receiving power input by the radio frequency chip, and amplifying the output power of the power; the output power of the radio frequency chip is Pin, and the power gain of the primary radio frequency power amplifier PA1 For G1.
  • the secondary RF power amplifier PA2 is connected to the primary RF power amplifier PA1 for receiving the power input by the primary RF power amplifier PA1 and amplifying the output power of the power; the power of the secondary RF power amplifier PA2 The gain is G2.
  • the radio frequency output unit is connected to the secondary radio frequency power amplifier PA2 for outputting an amplified RF signal of the 5.8 GHz frequency band, which is represented as Pout.
  • the shorting switch S is connected to both ends of the primary RF power amplifier PA1;
  • the short-circuit switch Before the RF chip output power is reduced to the lowest power PinL, the short-circuit switch is closed and the primary RF power amplifier PA1 does not operate. Before the output power of the RF chip increases to the highest power PinH, the short-circuit switch is turned off and the primary RF power amplifier PA1 operates.
  • the output power dynamic range of the entire circuit is expanded.
  • the present invention designs a set of 5.8 GHz RF Gain based on existing optional components.
  • the circuit of the Step function applying the short-circuit switch, expands the dynamic range of the output power of the circuit, so that it can better meet the requirements of different wireless technology standards such as WIFI, WIMAX, LTE, and can better utilize the spectrum resources of 5.8 GHz. .
  • the circuit provided by the invention can be applied in all kinds of radio equipments which are used in the 5.8 GHz frequency band and the application of the existing devices cannot meet the dynamic range of the output power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

L'invention concerne un circuit apte à étendre une plage dynamique de la puissance de sortie radiofréquence d'une bande de fréquences de 5,8 GHz, le circuit comprenant une puce radiofréquence, une pluralité d'étages d'amplificateurs de puissance radiofréquence (G1, …, Gn) et une unité de sortie radiofréquence qui sont connectés en séquence. La puce radiofréquence est utilisée pour délivrer un signal radiofréquence d'une bande de fréquences de 5,8 GHz. La pluralité d'étages d'amplificateurs de puissance radiofréquence (G1, …, Gn) sont utilisés pour réaliser un traitement d'amplification progressive sur le signal radiofréquence de la bande de fréquences de 5,8 GHz. Des commutateurs de court-circuit (S1, …, Si) sont connectés en parallèle aux deux extrémités d'au moins un étage d'un amplificateur de puissance radiofréquence de la pluralité d'étages d'amplificateurs de puissance radiofréquence (G1, …, Gn). Lorsque les commutateurs de court-circuit (S1, …, Si) sont fermés, des amplificateurs de puissance radiofréquence (G1, …, Gn) correspondants peuvent être court-circuités. Les états des commutateurs de court-circuit (S1, …, Si) dépendent d'un niveau de puissance du signal radiofréquence de la bande de fréquences de 5,8 GHz. L'unité de sortie radiofréquence est utilisée pour délivrer le signal radiofréquence amplifié de la bande de fréquences de 5,8 GHz. Le circuit étend une plage dynamique de puissance de sortie.
PCT/CN2016/078171 2016-03-31 2016-03-31 Circuit apte à étendre la plage dynamique d'une puissance de sortie radiofréquence d'une bande de fréquences de 5,8 ghz WO2017166216A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/078171 WO2017166216A1 (fr) 2016-03-31 2016-03-31 Circuit apte à étendre la plage dynamique d'une puissance de sortie radiofréquence d'une bande de fréquences de 5,8 ghz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/078171 WO2017166216A1 (fr) 2016-03-31 2016-03-31 Circuit apte à étendre la plage dynamique d'une puissance de sortie radiofréquence d'une bande de fréquences de 5,8 ghz

Publications (1)

Publication Number Publication Date
WO2017166216A1 true WO2017166216A1 (fr) 2017-10-05

Family

ID=59963340

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/078171 WO2017166216A1 (fr) 2016-03-31 2016-03-31 Circuit apte à étendre la plage dynamique d'une puissance de sortie radiofréquence d'une bande de fréquences de 5,8 ghz

Country Status (1)

Country Link
WO (1) WO2017166216A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1154610A (zh) * 1995-11-24 1997-07-16 松下电器产业株式会社 具有功率放大器旁路线的发射机功率改变装置
US6127886A (en) * 1997-10-30 2000-10-03 The Whitaker Corporation Switched amplifying device
CN103095229A (zh) * 2013-01-22 2013-05-08 北京安迈泽成科技有限公司 射频功率放大器
CN103312278A (zh) * 2013-05-10 2013-09-18 华中科技大学 一种射频功率放大器功率控制系统
CN103490802A (zh) * 2013-09-11 2014-01-01 天脉聚源(北京)传媒科技有限公司 一种射频信号输出功率的控制装置及终端设备
CN104852749A (zh) * 2014-02-19 2015-08-19 华为终端有限公司 射频电路及终端设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1154610A (zh) * 1995-11-24 1997-07-16 松下电器产业株式会社 具有功率放大器旁路线的发射机功率改变装置
US6127886A (en) * 1997-10-30 2000-10-03 The Whitaker Corporation Switched amplifying device
CN103095229A (zh) * 2013-01-22 2013-05-08 北京安迈泽成科技有限公司 射频功率放大器
CN103312278A (zh) * 2013-05-10 2013-09-18 华中科技大学 一种射频功率放大器功率控制系统
CN103490802A (zh) * 2013-09-11 2014-01-01 天脉聚源(北京)传媒科技有限公司 一种射频信号输出功率的控制装置及终端设备
CN104852749A (zh) * 2014-02-19 2015-08-19 华为终端有限公司 射频电路及终端设备

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