Design of Key Modules of Ultra-Wideband (UWB) Receiver
Date Issued
2007
Date
2007
Author(s)
Lee, Wei-Yang
DOI
en-US
Abstract
A new ultra-wideband (UWB) CMOS low-noise amplifier (LNA) is proposed, which includes an LC-ladder filter with a resistive shunt-feedback. The LC-ladder filter provides a good input matching and the resistive shunt-feedback renders unconditional stability and flat gain over the passband. The proposed LNA is implemented in 0.18 μm CMOS technology. Simulations show a −3 dB gain bandwidth of 3-10 GHz, the noise figure is less than 4 dB over most of the band, the maximum gain is 11.3 dB, The return loss is lower than −11 dB at the input, and lower than −12 dB at the output, the IIP3 is 2 dBm, and the power consumption is 18.79 mW. A dual-band PMOS cross-coupled pair VCO is designed and fabricated in a 0.18 μm CMOS process. By using the switched-inductor approach, dual band operation is realized using a single VCO. The phase noise at 1 MHz offset is −113.84 dBc/Hz at 3,947 MHz and −110.23 dBc/Hz at 8,002 MHz. The core VCO consumes 7.2 mW in both bands at the supply voltage of 0.9 V.
Subjects
超寬頻
壓控振盪器
低雜訊放大器
UWB
VCO
LNA
Type
thesis
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