An Integrated Closed-Loop Polar Transmitter with Saturation Prevention and Low-IF Receiver for QuadBand GPRS/EDGE is then prevented by backing off the requested transmit power. Another signal from the PA, should it enter the saturation region, alters the slew rate of the recovery.

📋 论文概要

该论文提出了一种用于四频GPRS/EDGE的集成闭环极性发射机与低中频接收机，通过饱和预防机制解决了发射机饱和问题，并实现了低功耗和高线性度。接收机采用外部SAW滤波器驱动四个差分LNA，高带和低带在混频器跨导输出端合并。

💡 主要创新点

• 提出了一种集成闭环极性发射机架构，包含饱和预防机制，有效避免了发射机饱和导致的性能下降。
• 接收机采用低中频架构，通过外部SAW滤波器与集成匹配组件驱动差分LNA，实现了高带和低带的合并，优化了接收性能。

🏷 关键词

📄 原文摘要

Thomas Obkircher1, Mohamed El Said1, Bala Ramachandran2, Tirdad Sowlati1, Darioush Agahi1, WeiHong Chen1, Dean A. Badillo1, Masoud Kahrizi1, Jaleh Komaili1, Stephane Wloczysiak1, Utku Seckin1, Yun-Young Choi1, Hasan Akyol1, Martin Vadkerti1, Amir Mahjoob1, Hamid Firouzkouhi1, Daniel Shum1, Rajendra Suhanthan1, Nooshin Vakilian1, Tom Valencia1, Christophe Dantec1, Aaron Paff1, Mona Ahooie1 On the receiver, an external bank of SAW filters with integrated matching components drive four differential LNAs with resistive loads. High band and low band are combined at the mixer transconductance output as shown in Fig. 6.1.3. The mixer is implemented using a 2LO-LO topology that is described in

👥 作者与机构

Raja Pullela1, Shahrzad Tadjpour1, Dmitriy Rozenblit1, William Domino1,