Title :
A low noise quadrature subsampling mixer
Author :
Karvonen, S. ; Riley, T. ; Kostamovaara, J.
Author_Institution :
Dept. of Electr. Eng., Oulu Univ., Finland
Abstract :
Noise analysis of a subsampling mixer structure based on current signal sampling is performed. The calculations show that a promisingly low noise figure can be obtained. The results of the analysis are verified by high-level simulations and measurements of a test circuit designed for quadrature downconversion from a 1st IF of 44.87 MHz to a low IF of 13 kHz
Keywords :
circuit noise; mixers (circuits); signal sampling; 13 kHz; 44.87 MHz; IF signal; current signal sampling; down-conversion circuit; high-level simulation; noise figure; quadrature subsampling mixer; Bandwidth; Capacitors; Circuit noise; Filtering; Frequency; Noise figure; Performance analysis; Sampling methods; Voltage; Wideband;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922356
