Compact device modeling and millimeter-wave oscillator design for III-V HBT technology
Stuenkel, Mark E.
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https://hdl.handle.net/2142/29484
Description
Title
Compact device modeling and millimeter-wave oscillator design for III-V HBT technology
Author(s)
Stuenkel, Mark E.
Issue Date
2012-02-01T00:48:46Z
Director of Research (if dissertation) or Advisor (if thesis)
Feng, Milton
Doctoral Committee Chair(s)
Feng, Milton
Committee Member(s)
Rosenbaum, Elyse
Jin, Jianming
Schutt-Ainé, José E.
Department of Study
Electrical & Computer Eng
Discipline
Electrical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
double heterojunction bipolar transistor (DHBT)
Modeling
Oscillator
Millimeter-Wave
Abstract
The double heterojunction bipolar transistor (DHBT), through its bandgap engineering, possesses several very favorable traits that allow it to operate at high frequencies while still maintaining impressive breakdown, linearity, and current driving characteristics. These traits make it a highly desirable device for both millimeter-wave and high-speed mixed-signal circuits. However, as the complexity of the circuits that can be realized with DHBTs increases, new compact large-signal models are needed to properly model the physical operation of these devices, because current models are based on older homojunction bipolar technology. A physically scalable DHBT model, the UIUC SDD2, is developed specifically for DHBT technology and shown to outperform the often-used VBIC model in both individual device modeling and full circuit simulation. Additionally, tunable clock generator and frequency synthesizer circuits implemented in an indium phosphide (InP) DHBT technology are designed, fabricated, and measured to show the ability of this technology to implement fully integrated sources with moderate power dissipation at millimeter-wave frequencies.
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