A Unified Method of Designing Ultra-Wideband Power-Efficient, and High IIP3, Reconfigurable Passive FET Mixers

The current diversity of available wireless services comes up with the necessity of multi-mode, multi-band, and multi-standard trans-receivers operating in several frequency bands, therefore, requiring a wideband mixer circuit that may replace several narrow band mixer modules by a single low distortion ultra wideband mixer. The passive FET mixers based on present approach (patent pending) can operate with low noise figure and high dynamic ranges without the need of excessively high LO drive level, and gives input intercept points (IIP3) in excess of 42 dBm and conversion loss less than 9.5 dB with the LO power typically 16 dBm for the frequency bands (RF: 800-3100MHz, LO: 850-3300 MHz, IF: 50-200 MHz). To our knowledge, the mixer circuits reported in this work exhibit best performance (for this class of circuits, given size, power, and cost) to date, and the circuit topology is reconfigurable for other operating frequency band to meet the requirement of present and later generation of communication systems