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.
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.
将所述带内信号与所述带外预失真信号相 加，作为射频功率放大器的输入。
The present invention compensates the non-linear distortion of RF power amplifier in form of out of band compensating signal.
射频功率放大器的主要功用是放大射频信号，并且以高效率输出大功率为目的。
The primary function of RF power amplifier is to amplify the RF singal with high efficiency.
射频功率放大器总是要求在一定频率范围内输出一定的功率，同时满足系统的线性度和高效率要求。
For RF PA, always require it can output a certain power within a range of frequency, at the same time meeting the system nonlinear requirements and have high conversion efficiency.
提出了一种新型的缺陷地结构，并将这种新型的缺陷地结构应用于实际所设计的射频功率放大器中。
This paper presented a novel DGS structure and apply it to the actual design of RF power amplifiers.
由于射频功率放大器在军事和个人通信系统中的地位非常重要，使得功率放大器的研制变得十分重要。
RF PA have become very important in the military and personal communications system, and it becomes extremely important to develop the RF PA.
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.
在WCDMA等宽带通信系统中，射频功率放大器记忆效应明显，传统的无记忆预失真技术无法达到理想的线性化效果。
In broadband communication systems, such as WCDMA, memory effects of RF power amplifiers (PAs) are significant and memoryless predistortion techniques cannot linearize PAs effectively.
射频功率放大器总是工作在大信号状态下，它所用的放大器件和电路设计方法都不同于小信号放大器，导致了功率放大器的设计难度较大。
RF PA almost working in large signal, so it's circuit design methods and transistor used are different from microwave small signal amplifier, these will led to RF PA design become more difficulty.
根据功放的实测AM-AM、AM-PM特性，采用时域分析方法，并应用带通非线性理论和数字信号处理技术，分析了宽带数字调制信号激励下的射频功率放大器非线性失真特性。
The method is based on AM-AM?AM-PM characteristics of a nonlinear power amplifier and application of band -pass nonlinearity theory and digital signal processing techniques.
在发送方向，收发信机向功率放大器提供射频信号，功率放大器根据给定调制类型的增益和斜坡信息对信号进行放大。
In the transmit direction, the transceiver provides RF signals to the power amplifier, which amplifies the signals based on gain and ramp information for a given modulation type.
新的设备具有的LDMOS的射频带宽的两倍，这样，一个功率放大器（PA）的可支持多个工作频率。
The new devices have twice the RF bandwidth of LDMOS, so that one power amplifier (PA) can support multiple operating frequencies.
收发信机可接收基带数据和控制信息，以及向功率放大器提供射频信号。
The transceiver may receive baseband data and control information and provide RF data to the power amplifier.
本发明的另一方面在于包括接收基带数据并提供射频信号给功率放大器的收发信机的设备。
Another aspect of the present invention resides in an apparatus that includes a transceiver to receive baseband data and to provide RF data to a power amplifier.
所设计的射频2W线性功率放大器是基于负载线匹配原理，采用功率回退法技术。
The 2W linear RF Power Amplifier in this paper is designed in Feedback method, based on Loadline Theory.
结合射频E类功率放大器的结构特点，采用CMOS工艺，达到了在大的输出功率范围内保持持续稳定高效率的目的。
The controller combines parallel amplification and drain modulation of the CMOS class-E power amplifier to provide high efficiency over a broad range of output powers.
智能天线子系统中，射频前端模块包括线性功率放大器，低噪放大器，检测控制电路。
In intelligent peripheral subsystem, Radio Frequency Front Modules include linear power amplifier, low noise amplifier and detection control circuit.
功率放大器（PA）和低噪声放大器（LNA）模块是射频（RF）混合集成电路的重要组成部分。
Power amplifier (PA) and low noise amplifier (LNA) modules are important components of RF hybrid IC's.
子电路包括低噪声放大器、射频滤波器、混频器、驱动放大器、功率放大器、中频滤波器等。
The subcircuits consist of the low noise amplifier, RF filter, mixer, driver amplifier, image filter, power amplifier, transmit-receive switch and if filter and so on.
本文提出一种线性化射频多载波高功率放大器的自适应射频预失真器。
This paper presents an adaptive RF predistorter to linearize multi-carriers power amplifiers.
前馈技术是应用于大功率放大器线性化的一种比较理想的方法，因此，射频前馈功率放大器的研究是一项十分有意义又深具挑战的课题。
Feedforward technology is a good method implicated in power linearity, therefore, the research of RF feedforward power amplifier is a practical and challenge topic.
驱动放大器放大信号到一个可以接受的输入量级以驱动功率放大器，放大后的射频信号被传送到天线分离滤波器进行滤波，最后通过天线发射出去。
The driving amplifier enlarges signal to reach an adaptive level in order to drive the power amplifier. The enlarged signal is delivered to a filter and transmitted through an antenna.
驱动放大器放大信号到一个可以接受的输入量级以驱动功率放大器，放大后的射频信号被传送到天线分离滤波器进行滤波，最后通过天线发射出去。
The driving amplifier enlarges signal to reach an adaptive level in order to drive the power amplifier. The enlarged signal is delivered to a filter and transmitted through an antenna.
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