The successful use of the Design of Experiments (DOE) and Response Surface Methods (RSM) approaches in the simultaneous optimization of geometrical parameters and power requirements of a 24GHz mixer is presented. The benchmarking geometry is a low-cost mixer for a Doppler radar sensor, built in Liquid Crystal Polymer (LCP) technology. First, the single-balanced diode mixer is designed for good RF/LO isolation and low conversion loss. The structure is then optimized using the same experiment that integrates both geometrical parameters and the LO input power levels. The optimized mixer shows a 4.5dB conversion loss with a 23dB isolation between RF and LO ports at the operating input power levels, the best reported so far for this frequency range and in these operating conditions.
Concurrent Circuit-Level/System-Level Optimization of a 24GHz Mixer for Automotive Applications Using a Hybrid Electromagnetic/Statistical Technique
PLACENTINO, FRANCESCO PIO;SCARPONI, ANDREA;ALIMENTI, Federico;ROSELLI, Luca;
2007
Abstract
The successful use of the Design of Experiments (DOE) and Response Surface Methods (RSM) approaches in the simultaneous optimization of geometrical parameters and power requirements of a 24GHz mixer is presented. The benchmarking geometry is a low-cost mixer for a Doppler radar sensor, built in Liquid Crystal Polymer (LCP) technology. First, the single-balanced diode mixer is designed for good RF/LO isolation and low conversion loss. The structure is then optimized using the same experiment that integrates both geometrical parameters and the LO input power levels. The optimized mixer shows a 4.5dB conversion loss with a 23dB isolation between RF and LO ports at the operating input power levels, the best reported so far for this frequency range and in these operating conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
