Multimode multi-frequency power amplifier

A power amplifier, multi-mode and multi-frequency technology, applied in the field of communication, can solve the problems of large module area and high cost

Active Publication Date: 2015-07-01
LANSUS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is fierce competition in the RF front-end industry for mobile communication terminal equipment. On the premise of maintaining the performance of RF front-end products,

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  • Multimode multi-frequency power amplifier
  • Multimode multi-frequency power amplifier
  • Multimode multi-frequency power amplifier

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0030] With the maturity of new semiconductor switching devices and technologies, such as SOI, as well as the maturity and cost reduction of packaging technologies such as SMT (Surface Mounted Technology)-Free and flip-chip (flip-chip), traditional The potential for further savings in MMMB PA implementation costs. This possibility resides in the fact that the bandwidth characteristic of the amplifier channel is considerably better than that of the output fundamental impedance transformer in the frequency band of common mobile communication. Therefore, the cost...

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Abstract

Provided is a multi-mode multi-frequency power amplifier (100), comprising: a controller (120) for receiving and outputting control signals based on external signals; a broadband amplifier channel (110) for receiving single-frequency or multi-frequency radio-frequency (RF) signals via an input end, conducting power amplification on the RF signals, and outputting the signals via an output end; a fundamental wave impedance convertor (170) comprising a first segment (130) shared by RF signals in respective frequency bands, a second segment (150) dedicated for RF signals in each frequency band, and a switch circuit (140), the switch circuit (140) being controlled by the controller (120) to switchably separate the RF signals with amplified power to the second segment (150) for multiple outputs.

Description

technical field [0001] The invention belongs to the field of communications, and in particular relates to a multi-mode multi-band (Multi-Mode Multi-Band, MMMB) power amplifier (Power Amplifier, PA). Background technique [0002] After entering the 3G / 4G era, with the continuous increase of mobile communication systems, the enhancement of user requirements for terminal equipment roaming and data functions, and the market's requirements for backward compatibility of terminal equipment, intelligent, multi-mode and multi-frequency, Dual-SIM dual-standby and dual-SIM dual-pass mobile terminal equipment has become a product trend, among which the multi-mode and multi-frequency functions of terminal equipment have become extremely important. [0003] Since most mobile terminal devices are powered by batteries, and the radio frequency terminal occupies a large part of the terminal power consumption, the radio frequency front-end products in the mobile terminal equipment, especially ...

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Application Information

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IPC IPC(8): H03F3/20
CPCH03F3/20H03F1/56H03F3/195H03F3/24H03F3/68H03F2200/111H03F2200/36H03F2200/387H03F2200/39H03F2200/411H03F2200/414H03F3/245
Inventor 张黎阳龙华赵骞唐东杰程珍娟
Owner LANSUS TECH INC
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