The primary function of RF power amplifier is to amplify the RF singal with high efficiency.
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。
With the rapid development of wireless communication, RF power amplifier plays the very important role.
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。
The linearization technology of RF power amplifier is studied through the design of RF power amplifier.
并结合功率放大器的设计，提出和研究了提高功率放大器的非线性方法。
The 2W linear RF Power Amplifier in this paper is designed in Feedback method, based on Loadline Theory.
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。
Predistortion linearization technology is conceptually the simplest form of linearization for an RF power amplifier.
预失真线性化技术理论上是最简单的RF功率放大器线性化技术。
The present invention compensates the non-linear distortion of RF power amplifier in form of out of band compensating signal.
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。
Firstly, the nonlinear characteristic of RF power amplifier is studied in the article and the improvement project is proposed.
本文首先研究了功率放大器的非线性失真问题，提出了预失真处理的改善方案。
The power circuit is composed of following circuits: RF oscillator, RF power amplifier, DC supply power circuit, protection circuit and matching network.
电源电路包括：射频信号发生电路、射频功率放大电路、直流供电电路和附加保护电路，以及与激光头的匹配网络。
RF power amplifier module is a key component in the base station system. It is of great significance to detect the function of RF power amplifier module before shipment.
射频功放模块是基站系统中的核心部件，出厂前对射频功放模块的功能进行检测意义重大。
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.
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。
Power amplifier (PA) and low noise amplifier (LNA) modules are important components of RF hybrid IC's.
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。
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.
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 new devices have twice the RF bandwidth of LDMOS, so that one power amplifier (PA) can support multiple operating frequencies.
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 transceiver may receive baseband data and control information and provide RF data to the power amplifier.
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。
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.
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。
Feedforward technology is a good method implicated in power linearity, therefore, the research of RF feedforward power amplifier is a practical and challenge topic.
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。
This is fortunate, since most RF paths are duplex (bidirectional) channels with a need for signals to go from antenna to front end (receive mode) and from power amplifier to antenna (transmit mode).
这是幸运的，因为大多数RF路径是双工(双向)通道需要的信号从天线到前端(接收模式)和功率放大器天线(发射模式)。
RF predistortion is the main power amplifier linearization technique used for wideband repeater at present.
目前，射频预失真是宽带直放站所采用的主要功放线性化技术。
A helix antenna was presented together with low power RF amplifier, as the frequency fitted, the axial direction can obtain largest radio energy.
采用小尺寸低功耗的射频芯片结合实际环境设计出螺旋结构天线，选择合适的频率，天线在轴向方向得到最大的辐射能量。
A helix antenna was presented together with low power RF amplifier, as the frequency fitted, the axial direction can obtain largest radio energy.
采用小尺寸低功耗的射频芯片结合实际环境设计出螺旋结构天线，选择合适的频率，天线在轴向方向得到最大的辐射能量。
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