Comparing Microstrip and CPW Performance

摘要

The performance levels of mi-crostrip, CBCPW launched mi-crostrip and CBCPW transmission lines were evaluated under controlled conditions. Both measurements and computer simulations were performed using a commercial, low-loss microwave substrate material with different copper types, including different values of copper conductor surface roughness. The effects of copper surface roughness were evaluated and compared, showing that greater roughness typically means greater loss.