A miniature, folded-switching, up-conversion mixer for UWB applications using 0.18-μm CMOS process

This paper presents a compact up-conversion mixer using commercial 0.18-mu m CMOS technology for UWB system applications. To achieve broadband frequency response, low power consumption, and small chip size simultaneously, the folded structure and inductor-free matching network are adopted. The measured mixer demonstrates a measured wideband response from 1 to 11 GHz with a conversion loss of lower than 6 dB. The dc power consumption is 25 mW under a supply voltage of 1.8-V, with a compact chip size of 0.5 mm x 0.6 mm.