随着无线通信技术的飞速发展，射频功率放大器起着越来越重要的作用。
With the rapid development of wireless communication, RF power amplifier plays the very important role.
本论文主要对无线通信集成电路中的关键模块——高效率功率放大器展开了一些研究和设计工作。
This paper does research on the key module-high efficiency power amplifiers-in wireless communication integrated circuit system.
于是多种不同功率放大器的线性化技术被采用来改善无线发射机的线性度及效率。
Various PA linearization techniques have been adopted to improve linearity and power efficiency of wireless transmitters.
在该系统中，提供了一种用于减少来自无线通信设备的发射电路中的功率放大器的输出信号的谐波的电子电路。
In the system, an electronic circuit for reducing harmonics of an output signal from a power amplifier in a transmission circuit for a wireless communication device is provided.
而功率放大器又具有非线性特性，因此要设计高效率又高线性度的无线发射机便成了一个相当困难的挑战。
Designing a high linearity and high power efficiency wireless transmitter is a big challenge due to the nonlinear characteristic of the power amplifier.
功率放大器是无线通信系统中一个关键的组件，其线性度和效率一直是被关注的焦点。
Power amplifiers are key components in wireless communication systems, whose linearity and efficiency are always the emphases.
而基于扩频技术的第三代无线通信系统中的功率放大器必须要有很好的线性性能。
Power amplifiers (PA) used in 3G wireless communication systems based on spread spectrum techniques must exhibit exceptional linearity.
同时，软件无线电为射频功率放大器的设计提供了新的技术途径。
At the same time, SDR provides new techniques and methods for the design of power amplifiers.
大功率放大器，无线发射器，无线收发器以及用于安装大功率放大器的方法。
High output power amplifier, wireless transmitter, wireless transmitting and receiving device, and high output power amplifier mounting method.
在特定的无线协议中，某些功率放大器实现了线性结构。
Some PAs in certain wireless protocols implement a linear architecture.
有限元法的RF 5521,RF 5515 RF 5355功率放大器和低噪声放大器是一个领先的无线参考设计，并选定主要是由于其性能，集成度和小尺寸大小的组合。
The RF5521 FEM, RF5515 LNA and RF5355 PA are on a leading WiFi reference design and were selected primarily due their combination of performance, integration and small footprint size.
射频功率放大器模块是无线通信收发器中的重要模块，它的作用是放大高频信号至所需的功率，并送至天线辐射出去。
PA is very important in the wireless communication system, it amplify high frequency signal to the desired power which is sent through the antenna.
射频功率放大器模块是无线通信收发器中的重要模块，它的作用是放大高频信号至所需的功率，并送至天线辐射出去。
PA is very important in the wireless communication system, it amplify high frequency signal to the desired power which is sent through the antenna.
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