Single-Chip Tri-Band WCDMA/HSDPA Transceiver without External SAW Filters and with Integrated TX Power Control

📋 论文概要

该论文提出了一种单芯片三频WCDMA/HSDPA收发器，无需外部SAW滤波器并集成了发射功率控制。通过消除外部SAW滤波器，降低了系统成本和尺寸，同时实现了高集成度。

💡 主要创新点

• 实现了单芯片三频WCDMA/HSDPA收发器，覆盖多个频段。
• 去除了外部SAW滤波器，通过片上集成降低系统成本和复杂度。
• 集成了发射功率控制，提高了发射路径的灵活性和集成度。

🏷 关键词

📄 原文摘要

Christopher Jones1, Paul Fowers1, Steve Brett1, Christophe Beghein1, Federico Beffa2 1 MediaTek, West Malling, United Kingdom Federico Beffa Engineering, Agno, Switzerland 2 With growing WCDMA adoption there is a strong demand to reduce the cost of WCDMA terminals. Contributing to the relatively high WCDMA terminal cost is the low integration of today’s WCDMA radios. Since WCDMA is an FDD system the transmitter and receiver are on simultaneously. A duplexer is used to isolate the receiver from the transmit signal but the isolation of small low-cost duplexers is limited, with a guaranteed isolation at the TX frequency of not more than 52dB. For a Class-3 terminal with 2dB TX path loss due to duplexer and switch, the power at the PA output is +26dBm and the receiver will see a TX leakage of up to −26dBm. Today’s state-ofthe-art WCDMA transceivers [1-3] deal with the TX blocking problem by using an external TX SAW filter to eliminate TX noise in the RX

👥 作者与机构

Bernard Tenbroek1, Jonathan Strange1, Dimitris Nalbantis1,