Design and implementation of spiral-type Marchand Balun using glass-based IPD technology

In this paper, a spiral-type Marchand balun design in glass-based IPD technology has been presented. The EM simulation results show good agreement with measurements. The balun in this design has excellent return and insertion loss characteristics. In addition, it is also with good amplitude and phase balance and can achieve high CMRR performance. This balun design has been successfully employed in Bluetooth and WLAN system-in-package applications.