Design methodology for the optimization of transformer-loaded RF circuits

作者：Carrara F^*; Italia A; Ragonese E; Palmisano G

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2006, 53(4): 761-768.

DOI：10.1109/TCSI.2005.860117

• figure of merit
• integrated transformer
• SiGeHBT
• transformer characteristic resistance (TCR)
• tuned load
• up-converter
• wireless LAN (WLAN)

In this paper, a design methodology for the optimization of transformer-loaded RF circuits is presented. The optimization procedure is based on a novel figure of merit for the integrated transformer (namely the transformer characteristic resistance), which was introduced to quantify its performance when operated as a tuned load. Using the proposed approach, a highly linear up-converter for 5-GHz wireless LAN applications was implemented in a 45-GHz-f(T) SiGe HBT technology. The circuit achieved an output 1-dB compression point of 4.5 dBm and a power gain of 18 dB, while drawing only 34 mA from a 3-V power supply.

• 出版日期2006-4