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Multi-frequency-band power amplifier

A technology of power amplifier and power amplification unit, which is used in power amplifier, multi-terminal pair network, impedance network and other directions

Active Publication Date: 2012-01-25
WUXI ZHONGPU MICROELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a high-efficiency power amplifier that can support multiple frequency bands and can share a power amplification unit has not yet been developed.

Method used

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  • Multi-frequency-band power amplifier
  • Multi-frequency-band power amplifier
  • Multi-frequency-band power amplifier

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Embodiment Construction

[0031] 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.

[0032] 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.

[0033] 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 multi-frequency-band power amplifier which comprises a power amplifying unit for amplifying signals of multi-frequency-band and a harmonic suppression circuit; the harmonic suppression circuit is connected with the output route of the power amplifying unit when the power amplifying unit amplifies the signal of one frequency band; and when the power amplifying unit amplifies the signal of the other frequency band, the harmonic suppression circuit is disconnected with the output route of the power amplifying unit by the harmonic of the signal of the frequency band which is suppressed and amplified by the harmonic suppression circuit. Thus, the effect of an equal efficiency power amplifier similar to F power amplifiers is realized by the harmonic suppression circuit, i.e. the output power and the efficiency are changed through changing the harmonic impedance, so that the output filter wave, the power and the efficiency of the power amplifier are improved under the premise of not disturbing the normal signal of the other frequency band.

Description

【Technical field】 [0001] The invention relates to the field of IC design, in particular to a multi-band power amplifier. 【Background technique】 [0002] At present, the wireless mobile communication system has been widely used. The wireless mobile communication system has developed from the 1G analog system in the early 1980s to the 2G digital system in the 1990s, and then to the current 3G system, and may develop into 4G and 5G systems in the future. The goal of wireless communication networks is to provide seamless broadband connections to users around the world. [0003] Wireless mobile communication can be carried out on multiple frequency bands. For example, the 2G GSM (Global System of Mobile communication) standard supports several frequency bands such as 900MHz (GSM900), 1800MHz (GSM1800) and 1900MHz (GSM-1900). WCDMA (Wideband Code Division Multiple Access) standard up to 8 frequency bands. Different frequency bands will significantly affect the hardware design, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H7/38H03F3/20
Inventor 任启明雷良军
Owner WUXI ZHONGPU MICROELECTRONICS CO LTD
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