NDLI: A Combined Model With Electrothermal Coupling and Electromagnetic Simulation for Microwave Multifinger InP-Based DHBTs

Content Provider	IEEE Xplore Digital Library
Author	Ji Ge Yuxiong Cao Danyu Wu YongBo Su Zhi Jin Xinyu Liu
Copyright Year	1963
Abstract	This paper presents a combined model with electrothermal coupling and electromagnetic (EM) simulation for multifinger InP-based double heterojunction bipolar transistors (DHBTs). The electrothermal coupling effect, which occurs in multifinger InP DHBTs, is characterized based on 3-D thermal simulation. In addition, EM simulation technique is presented to account for the distributed effect of interconnection of the fingers and their surroundings. A large-signal model for single-finger DHBTs is implemented as a seven-port symbolically defined device, which accounts for several physical phenomena, including the self-heating effect, Kirk effect, current blocking effect, mobile charge modulation of the base-collector capacitance, and velocity field modulation in the transit time. The combined model implemented in Agilent-ADS is verified by comparing the simulated and measured data in dc small-signal S-parameters and large-signal microwave power characteristic. This approach allows a simple method to analyze and predict microwave multifinger InP DHBTs for power amplifier circuit design using commonly available computer-aided design tools such as Agilent-ADS.
Sponsorship	IEEE Electron Devices Society
Starting Page	673
Ending Page	679
Page Count	7
File Size	571682
File Format	PDF
ISSN	00189383
Volume Number	59
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Double heterojunction bipolar transistors Indium phosphide Couplings Thermal resistance Mathematical model Junctions multifinger InP double heterojunction bipolar transistors (DHBTs) Electromagnetic (EM) electrothermal coupling large-signal model
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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