Intermodulation distortion of Integrated Power Amplifier and filter using single stub tuners for green communication

M. Fadhli, Z. Zakaria, A. R. Othman, A. Salleh, W. Y. Sam
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引用次数: 5

Abstract

Integrated Power Amplifier (PA) and filter which is part of important component for Radio Frequency (RF) transmitter is designed using Adavance Design Simulation (ADS). The main aims of the design is to provide linear amplifier and filter at the center frequency of 2 GHz and biased at the conditions of class AB. GaAs transistor is used as an active device due to ability in operating at high frequencies and can generate signals with lesser noise. Linearity of the integragted design was simulated with two tone test and the intermodulation products (OIP3) value resulted to be 50 dBm. ACPR of -50.86 dBC with 10MHz frequency spacing is achieved using the Butterworth Bandpass Filter. On the other side, high linearity will lead to more efficient transmission of the signals.
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绿色通信中使用单根调谐器的集成功率放大器和滤波器的互调失真
采用先进设计仿真技术(ADS)对射频发射机的重要组成部分——集成功率放大器和滤波器进行了设计。设计的主要目的是提供中心频率为2ghz的线性放大器和滤波器,并在AB类条件下偏置。由于GaAs晶体管能够在高频下工作,并且可以产生噪声较小的信号,因此用作有源器件。通过双音测试模拟了集成设计的线性度,得到互调积(OIP3)值为50 dBm。ACPR为-50.86 dBC,频率间隔为10MHz,使用巴特沃斯带通滤波器实现。另一方面,高线性度将导致更有效的信号传输。
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