Highly miniaturized and low impedance RFIC/MMIC impedance transformer for application to the wireless communication components in Vessel

선박 무선통신 소자에의 응용을 위한 초소형 저임피던스 RFIC/MMIC용 임피던스 변환기의 설계

Using the novel microstripline with periodically perforated ground metal, a miniaturized 1/4 ${\lambda}$ transformer was fabricated. The line width of the 1/4 ${\lambda}$ transformer was 20${\mu}m$ and the size of it was 0.0085$mm^2$, which is 1.2% of conventional one. The 1/4 ${\lambda}$ transformer exhibited good RF performances from 10 to 25GHz.