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High-efficiency and low-harmonic-wave power amplifier and mobile terminal thereof

A power amplifier, low harmonic technology, used in power amplifiers, high-frequency amplifiers, amplifiers, etc., to save costs and reduce area/volume

Active Publication Date: 2016-11-09
安徽佳视通电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to solve the deficiencies in the above-mentioned prior art, the present invention provides a more integrated, more flexible, high-efficiency, low-harmonic multi-mode power amplifier and its mobile terminal, in order to simplify the wireless communication of the Internet of Things The structural design of the radio frequency amplifier and its modules, so as to realize the adjustable power mode of the power amplifier, so as to meet the needs of various communication systems for wireless communication of the Internet of Things

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  • High-efficiency and low-harmonic-wave power amplifier and mobile terminal thereof
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  • High-efficiency and low-harmonic-wave power amplifier and mobile terminal thereof

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0036] As mentioned above, the existing solution in the wireless communication of the Internet of Things in the market is the design of a single-mode power amplifier. The amplifier works at a fixed output power and can achieve a certain efficiency. The existing load design will have certain harmonic filtering. In systems requiring multiple power outputs, multiple figure 1 or figure 2 The power amplifier shown, for example in a system requiring three output powers, would each require three similar to figure 1 or figure 2 The products represent high-power / medium-power / low-power RF amplification paths. For example, a high power amplifier is used for high power output, and a low power amplifier is used for low power output. The three output channels are independent, and the solution greatly increases the area of ​​the module and the cost of the product beca...

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Abstract

The invention discloses a high-efficiency and low-harmonic-wave power amplifier and a mobile terminal thereof. Cascade connection is achieved by utilizing at least one stage of amplifying circuit, adjustment of radio frequency gain of the power amplifier can be achieved by flexibly configuring bias voltages or bias currents of all units of amplifying units in all stages of amplifying circuits under different power output requirements, and meanwhile optimization from second harmonic waves to tenth harmonic waves and optimization of the amplifier and its module efficiency can be achieved through new load design. The design scheme of the flexible and efficient power amplifier can be applied to a power amplifying application having low-harmonic-wave demand in any wireless connection of Internet of Things, high performance can be achieved in multiple communication systems, and accordingly adjustment of a power mode and harmonic waves of the power amplifier is achieved to meet the demand for multiple communication systems in the Internet of Things.

Description

technical field [0001] The invention relates to the technical field of radio frequency power amplifier design, in particular to a high-efficiency and low-harmonic multimode power amplifier and a mobile terminal thereof. Background technique [0002] The radio frequency transmitting front-end module is a key component for radio frequency terminal devices to realize signal transmission. Currently, with the rapid growth of global wireless communication users and users' higher-end experience requirements for wireless communication, the market demand for wireless communication bandwidth is growing rapidly. In the frequency band of mobile phone wireless communication, modulation and demodulation methods with high frequency band utilization are mostly used, for example: 3G Wideband Code Division Multiple Access (WCDMA), with Code Division Multiple Access (Code Division Multiple Access, CDMA), time division synchronous code division multiple access (Time Division Synchronous Code D...

Claims

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Application Information

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IPC IPC(8): H03F1/02H03F1/26H03F1/56H03F3/19H03F3/21H03F3/24
CPCH03F1/0216H03F1/26H03F1/56H03F3/19H03F3/21H03F3/245Y02D30/70
Inventor 马雷彭小滔李磊
Owner 安徽佳视通电子科技有限公司
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