一种用于射频集成滤波器的具有独立Q和频率调谐的CMOS质量因数增强并联谐振LC-tank

Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05) Pub Date : 2005-07-20 DOI:10.1109/IWSOC.2005.5

J. Nakaska, J. Haslett

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引用次数: 5

摘要

提出了一种新的质量因数增强谐振腔芯，并将其用于2.4GHz带通滤波器的设计。新的Q-enhanced LC-tank具有独立的Q调优能力，大大简化了自动Q调优问题。在模拟中，在0.18/spl mu/m CMOS中，无负载q增强核心从1.8V电源消耗7.05mA，并且可以使用变容管从2.1GHz调谐到3.5GHz。对所提出的自动调q系统进行了简要的讨论。合成的2.45GHz滤波器带宽为148MHz，在10%调谐范围内插入损耗为0dB，在2.35GHz时1/sup / order压缩点为-0.5dBm。

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A CMOS quality factor enhanced parallel resonant LC-tank with independent Q and frequency tuning for RF integrated filters

A new quality factor enhanced resonator core is presented and used to design a bandpass filter at 2.4GHz. The new Q-enhanced LC-tank has independent Q tuning capability, which substantially simplifies the automatic Q-tuning problem. In simulation, the unloaded Q-enhanced core consumes 7.05mA from a 1.8V supply in 0.18/spl mu/m CMOS and can be tuned from 2.1GHz to 3.5GHz using varactors. A brief discussion of the proposed automatic Q-tuning system is presented. The synthesized 2.45GHz filter has a bandwidth of 148MHz, 0dB insertion loss over a 10% tuning range, and a 1/sup st/ order compression point of -0.5dBm at 2.35GHz.

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Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05)

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