| Summary: | 碩士 === 國立暨南國際大學 === 電機工程學系 === 96 === This thesis is mainly studied the passive device and passive circuit for RFIC applications. Study theme is divided into three parts：
The first part is to study coupled inductors on silicon substrate. Use a guard-ring within to diminish the coupling effect.
In the second part, 3.1 ~ 10.6 GHz band pass filter is designed for ultra wideband (UWB). Mainly, a kind of band pass filter is designed by lumped device and implemented based on synthetic transmission lines (TLs). Measured results show that the band pass filter has 3dB bandwidth range from 3.3 to 13.7GHz, the minimum insertion loss of 1.93 dB, and group delay of 133±97 ps.
In the third part, we propose that the tunable function for phase and amplitude difference in lumped out-of-phase power splitters is implemented by putting varactor into the synthetic TLs. At the VB=0V, within the range of 30.4 ~ 40 GHz, the return loss, isolation, phase difference and amplitude difference are < -20dB, <-20 dB, 90°±2° and ±0.7 dB, respectively. At the VB=+1.8V, within the range of 28 ~ 42.6 GHz, the return loss, isolation, phase difference and amplitude difference are < -16dB, <-20.8 dB, 90°±2° and ±1.12 dB, respectively.
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