Multimode power amplifier and corresponding mobile communication equipment

A power amplifier and power amplification technology, which is applied in the field of mobile communication equipment and multi-mode power amplifiers, can solve the problems of communication quality degradation, discontinuous phase jump, communication signal distortion, etc., and achieve the effect of avoiding communication quality degradation

Active Publication Date: 2014-05-21
WUXI ZHONGPU MICROELECTRONICS CO LTD
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  • Abstract
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Problems solved by technology

[0004] Although this type of multi-mode power amplifier can effectively improve the effective efficiency of the system, this type of power amplifier has an obvious shortcoming, that is, there is a discontinuous phase jump between the various modes, and this phase jump will cause communication signal distortion, which degrades the communication quality

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  • Multimode power amplifier and corresponding mobile communication equipment
  • Multimode power amplifier and corresponding mobile communication equipment
  • Multimode power amplifier and corresponding mobile communication equipment

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Embodiment Construction

[0028] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The detailed description of the present invention is mainly presented by programs, steps, logic blocks, processes or other symbolic descriptions, which directly or indirectly simulate the operation of the technical solutions in the present invention. These descriptions and representations herein are used by those skilled in the art to effectively convey the substance of their work to others skilled in the art.

[0030] The term "one embodiment" or "embodiment" here refers to that specific features, structures or characteristics related to the embodiment can be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification do not necessarily al...

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Abstract

The invention discloses a multimode power amplifier, which comprises two power amplification paths and a control circuit. By the control of the control circuit, the power of an input radio frequency signal can be amplified in one of the two power amplification paths so as to obtain an output radio frequency signal, wherein a phase compensation circuit is arranged in at least one power amplification path. Therefore, the deviation or jump between a signal phase in the adjusted amplification path and the signal phase in other amplification path is very small, so that communication quality degradation during mode switch is reduced or prevented.

Description

【Technical field】 [0001] The invention relates to the field of IC design, in particular to a multi-mode power amplifier and corresponding mobile communication equipment. 【Background technique】 [0002] Modern mobile communication systems, especially mobile phones, in order to prolong the use time of lithium batteries, increase talk time, reduce the current of power amplifiers, and improve the efficiency of power amplifiers is one of the effective ways. For this reason, people have invented many methods to effectively improve efficiency, such as class E and class F power amplifiers. This type of power amplifier can achieve high effective efficiency when the power output is close to saturation. [0003] But in the communication system, sometimes the system does not need high transmission power. In order to make the system have high efficiency in different transmission states, people have proposed a multi-mode power amplifier. The multi-mode power amplifier is to set the size...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03F3/20
Inventor 任启明雷良军
Owner WUXI ZHONGPU MICROELECTRONICS CO LTD
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