Dual-band high-efficiency radio frequency power amplifier

A radio frequency power and amplifier technology, applied in the field of dual-band high-efficiency radio frequency power amplifiers, can solve the problems of difficulty in simultaneous operation, high cost, and complex circuits.

Pending Publication Date: 2021-04-30
QINGHAI UNIV FOR NATITIES
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Problems solved by technology

Usually, switching multiple power amplifiers through switches, or using power amplifiers with reconfigurable structures, is the best circuit solution for the optimal design of each frequency band, but these structures can only work in one frequency band at a certain time , it is difficult to achieve the requirement of working in multiple frequency bands at the same time, and it also has the disadvantages of large footprint, complex circuit and high cost

Method used

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  • Dual-band high-efficiency radio frequency power amplifier
  • Dual-band high-efficiency radio frequency power amplifier

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Embodiment Construction

[0016] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.

[0017] An embodiment of the present invention provides a dual-band high-efficiency radio frequency power amplifier, including an input dual-frequency directional coupler, a dual-channel broadband amplification network, and an output dual-frequency directional coupler.

[0018] Such as figure 1 As shown, the input end of the input dual-frequency directional coupler is the input end of the entire amplifier, its first output end is connected with the first input end of the dual-channel broadband amplifying network, and its second output end is connected with the first input end of the dual-channel broadband amplifying netwo...

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Abstract

The invention discloses a dual-band high-efficiency radio frequency power amplifier, which comprises an input dual-band directional coupler, a dual-channel broadband amplification network and an output dual-band directional coupler, and is characterized in that a core framework adopts the dual-channel broadband amplification network and has the characteristics of high power and high efficiency; meanwhile, good low insertion loss and standing wave matching characteristics of the input double-frequency directional coupler and the output double-frequency directional coupler in two frequency bands of a microwave frequency band are utilized, the working frequency of the double-frequency directional couplers is not influenced by an amplifier network, and independent frequency band design can be realized; therefore, the whole power amplifier can obtain good high gain, high efficiency, good standing wave characteristics and high power output capability in the required double frequency bands.

Description

technical field [0001] The invention relates to the fields of field effect transistor radio frequency power amplifiers and integrated circuits, in particular to a dual-band high-efficiency radio frequency power amplifier applied to a transmitting module of a radio frequency microwave terminal transceiver. Background technique [0002] With the rapid development of wireless communication systems and RF microwave circuits, RF front-end transceivers are also developing in the direction of high performance, high integration, and low power consumption. However, the rapid development of wireless communication technology and new wireless communication technology increasingly require that the communication transceiver must work in multiple frequency bands and support multiple communication standards at the same time, so as to achieve the purpose of reducing cost and size. Therefore, there is an urgent demand in the market for the radio frequency and microwave power amplifiers of the...

Claims

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Application Information

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IPC IPC(8): H03F3/189H03F3/20
CPCH03F3/189H03F3/20
Inventor 林倩邬海峰
Owner QINGHAI UNIV FOR NATITIES
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