Direct Measurement of the Maximum Operating Region in AlGaAs HBTs for RF Power Amplifiers
Summary :
A microwave waveform measurement system below 18 GHz was developed and verified with a conventional RF measurement. The current and voltage RF waveforms of AlGaAs HBTs at the fundamental frequency of 1 GHz were directly measured with the system. A new direct method of sweeping and measuring dynamic RF load lines is proposed to measure the operating limits of the device. The maximum operating region was experimentally investigated with this method. The limits with a small input power are found to come from thermal runaway and the avalanche breakdown of the device. With a large input power, the HBT was found to operate beyond the DC limit of thermal runaway. The base ballasting resistance was also found to enhance large signal operating limits beyond those expected from the conventional DC theory.
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- IEICE TRANSACTIONS on Electronics Vol.E86-C No.8 pp.1451-1457
- Publication Date
- 2003/08/01
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- Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
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Akira INOUE, Shigenori NAKATSUKA, Satoshi SUZUKI, Kazuya YAMAMOTO, Teruyuki SHIMURA, Ryo HATTORI, Yasuo MITSUI, "Direct Measurement of the Maximum Operating Region in AlGaAs HBTs for RF Power Amplifiers" in IEICE TRANSACTIONS on Electronics,
vol. E86-C, no. 8, pp. 1451-1457, August 2003, doi: .
Abstract: A microwave waveform measurement system below 18 GHz was developed and verified with a conventional RF measurement. The current and voltage RF waveforms of AlGaAs HBTs at the fundamental frequency of 1 GHz were directly measured with the system. A new direct method of sweeping and measuring dynamic RF load lines is proposed to measure the operating limits of the device. The maximum operating region was experimentally investigated with this method. The limits with a small input power are found to come from thermal runaway and the avalanche breakdown of the device. With a large input power, the HBT was found to operate beyond the DC limit of thermal runaway. The base ballasting resistance was also found to enhance large signal operating limits beyond those expected from the conventional DC theory.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e86-c_8_1451/_p
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@ARTICLE{e86-c_8_1451,
author={Akira INOUE, Shigenori NAKATSUKA, Satoshi SUZUKI, Kazuya YAMAMOTO, Teruyuki SHIMURA, Ryo HATTORI, Yasuo MITSUI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Direct Measurement of the Maximum Operating Region in AlGaAs HBTs for RF Power Amplifiers},
year={2003},
volume={E86-C},
number={8},
pages={1451-1457},
abstract={A microwave waveform measurement system below 18 GHz was developed and verified with a conventional RF measurement. The current and voltage RF waveforms of AlGaAs HBTs at the fundamental frequency of 1 GHz were directly measured with the system. A new direct method of sweeping and measuring dynamic RF load lines is proposed to measure the operating limits of the device. The maximum operating region was experimentally investigated with this method. The limits with a small input power are found to come from thermal runaway and the avalanche breakdown of the device. With a large input power, the HBT was found to operate beyond the DC limit of thermal runaway. The base ballasting resistance was also found to enhance large signal operating limits beyond those expected from the conventional DC theory.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Direct Measurement of the Maximum Operating Region in AlGaAs HBTs for RF Power Amplifiers
T2 - IEICE TRANSACTIONS on Electronics
SP - 1451
EP - 1457
AU - Akira INOUE
AU - Shigenori NAKATSUKA
AU - Satoshi SUZUKI
AU - Kazuya YAMAMOTO
AU - Teruyuki SHIMURA
AU - Ryo HATTORI
AU - Yasuo MITSUI
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E86-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2003
AB - A microwave waveform measurement system below 18 GHz was developed and verified with a conventional RF measurement. The current and voltage RF waveforms of AlGaAs HBTs at the fundamental frequency of 1 GHz were directly measured with the system. A new direct method of sweeping and measuring dynamic RF load lines is proposed to measure the operating limits of the device. The maximum operating region was experimentally investigated with this method. The limits with a small input power are found to come from thermal runaway and the avalanche breakdown of the device. With a large input power, the HBT was found to operate beyond the DC limit of thermal runaway. The base ballasting resistance was also found to enhance large signal operating limits beyond those expected from the conventional DC theory.
ER -
English
