一种用于线性LINC发射机的跨线性芯片

2000 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.00CH37103) Pub Date : 2000-06-15 DOI:10.1109/VLSIC.2000.852851

Bo Shi, L. Sundstrom

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引用次数: 10

摘要

LINC发射机使用非线性但功率高效的放大器提供线性放大。信号分量分离器(SCS)是LINC的一项重要功能。本文提出了一种基于非线性电路设计的200 MHz中频SCS芯片，该芯片采用0.8 /spl mu/m BiCMOS工艺实现。实验用该芯片和非线性放大器组成的LINC发射机，对NADC信号和小灵通信号的输出杂散电平都在-55 dBc左右。这意味着高度的线性。

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A translinear-based chip for linear LINC transmitters

The LINC transmitter provides linear amplification using nonlinear but power efficient amplifiers. The signal component separator (SCS) is a crucial function of LINC. This paper presents a 200 MHz IF SCS chip implemented in a 0.8 /spl mu/m BiCMOS process using a novel design based on translinear circuits. The experimental LINC transmitter, built with the chip and nonlinear amplifiers, had output spurious levels around -55 dBc for both a NADC signal and a PHS signal. This implies a high degree of linearity.

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2000 Symposium on VLSI Circuits. Digest of Technical Papers (Cat. No.00CH37103)

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