Dissertation/ Thesis
Design and Implementation of HBT MMICs for W-CDMA Applications Including Evaluation of Package and PCB Effects
| العنوان: | Design and Implementation of HBT MMICs for W-CDMA Applications Including Evaluation of Package and PCB Effects |
|---|---|
| المؤلفون: | Wu, Jian-Ming |
| Thesis Advisors: | Tian-Wei Huang, Chin-Chun Meng, Sheng-Fuh Chang, Tzyy-Sheng Horng, Huey-Ru Chuang, Shey-Shi Lu, Chih-Wen Kuo, Kin-Lu Wong, Ken-Huang Lin |
| بيانات النشر: | NSYSU, 2006. |
| سنة النشر: | 2006 |
| المجموعة: | NSYSU Electronic Thesis and Dissertation Archive |
| Original Material: | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0608106-233419 |
| مصطلحات موضوعية: | package and PCB effects, upconverter, quadrature modulator, phase shifter, HBT |
| الوصف: | This research aims to design and implement GaAs HBT MMICs for the two crucial components in W-CDMA transmitters, quadrature modulator and upconverter, with thorough evaluation of the package and PCB effects. To construct a strong theoretical foundation, the small-signal modeling of HBTs and the EM-characterization of package and PCB interconnects are intensively studied. In this dissertation, a novel extrinsic-inductance independent approach is developed for direct extraction of the intrinsic elements in a hybrid-pi equivalent circuit of HBTs. The interconnects of leadless RFIC packages and test PCBs are investigated using the 3-D EM simulation tools and transformed into the equivalent circuits for co-analysis with the designed HBT MMICs. The first HBT MMIC design is a W-CDMA direct-conversion quadrature modulator incorporating a new 90 degrees phase shifter. Although the proposed 90 degrees phase shifter has a remarkable advantage over the others in implementation loss, it is rather susceptible to the package and PCB effects, resulting in a moderate degradation of EVM. The second HBT MMIC design is a W-CDMA upconverter incorporating a popular micromixer. Although the micromixer-based upconverter consumes much less current at low output powers to achieve the same high linearity when compared to a Gilbert mixer-based design, it is quite susceptible to the package and PCB effects, causing a significant degradation in ACPR. Comparison between theory and measurement shows good agreement in evaluating the influences of package and PCB interconnects on both HBT MMICs. |
| Original Identifier: | oai:NSYSU:etd-0608106-233419 |
| نوع الوثيقة: | Text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| الاتاحة: | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0608106-233419 |
| Rights: | unrestricted Copyright information available at source archive |
| رقم الانضمام: | edsndl.NSYSU.oai.NSYSU.etd.0608106.233419 |
| قاعدة البيانات: | Networked Digital Library of Theses & Dissertations |
| الوصف غير متاح. |