DocumentCode
1987034
Title
A Self-bias Ku-band 1-Watt PHEMT Power Amplifier MMIC With A Compact Source Capacitor
Author
Liu, H.Z. ; Lin, C.H. ; Chu, C.K. ; Huang, H.K. ; Houng, M.P. ; Wang, Y.H. ; Chang, C.H. ; Wu, C.L. ; Chang, C.S.
Author_Institution
Institute of Microelectronics, Department of Electrical Engineering, National Cheng-Kung University, Tainan, 701 Taiwan.
fYear
2005
fDate
19-21 Dec. 2005
Firstpage
207
Lastpage
210
Abstract
In this paper, the design of a self-bias 1.8 mm AlGaAs/InGaAs/GaAs PHEMT with a compact source capacitor for operation in Ku-band frequency is described. Based on the proposed device, a self-bias Ku-band 1-W two-stage power amplifier MMIC is also demonstrated. Under single bias condition of 8 V and 630 mA, the self-bias MMIC possesses 14.2 dB small-signal gain, 30.2 dBm output power at 1-dB gain compression point with 19.2% power added efficiency and 31.3 dBm saturated output power with 22.5% power added efficiency at 14 GHz. With the performance comparable to the dual-bias MMIC counterpart, the proposed self-bias MMIC is more attractive to system designers on VSAT applications.
Keywords
Frequency; Gallium arsenide; Indium gallium arsenide; MIM capacitors; MMICs; PHEMTs; Power amplifiers; Power generation; Resistors; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices and Solid-State Circuits, 2005 IEEE Conference on
Print_ISBN
0-7803-9339-2
Type
conf
DOI
10.1109/EDSSC.2005.1635242
Filename
1635242
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