GaAs Schottky varactor diode optimization for high-performance nonlinear transmission lines

Author

Sawdai, D. ; Ko, D. ; Kintis, M. ; Maas, S. ; Zhang, X. ; Valdes, S. ; Garber, E. ; Barber, G. ; Quach, E. ; Newman, J. ; Fong, F.

Author_Institution

Space & Electron. Group, TRW Inc., Redondo Beach, CA, USA

fYear

2002

fDate

24-26 June 2002

Firstpage

87

Lastpage

88

Abstract

Nonlinear transmission lines (NLTLs) using Schottky diodes as varactor loads provide significant performance and efficiency advantages for both frequency multiplication and phase shifting applications that will benefit comb generator and phased array applications, respectively. Prior NLTL optimization has been limited only to analytical studies of specific diode profiles. This paper describes, for the first time, the optimization of NLTL performance through the design, simulation, and fabrication of five different experimental GaAs diode doping profiles. Fabricated device and circuit data from the different wafers are presented and compared. To the knowledge of the authors, these NLTLs demonstrate the least conversion loss for any comb generators driven at 1 GHz.

Keywords

III-V semiconductors; Schottky diodes; doping profiles; frequency multipliers; gallium arsenide; high-frequency transmission lines; optimisation; phase shifters; semiconductor device measurement; semiconductor device models; varactors; 1 GHz; GaAs; GaAs Schottky varactor diode optimization; NLTL conversion loss; comb generator driving frequency; diode doping profile design/simulation/fabrication; diode profiles; frequency multiplication; high-performance nonlinear transmission lines; phase shifting applications; phased array applications; varactor loads; Circuit simulation; Design optimization; Doping profiles; Fabrication; Frequency conversion; Gallium arsenide; Phased arrays; Schottky diodes; Transmission lines; Varactors;

fLanguage

English

Publisher

ieee

Conference_Titel

Device Research Conference, 2002. 60th DRC. Conference Digest

Conference_Location

Santa Barbara, CA, USA

Print_ISBN

0-7803-7317-0

Type

conf

DOI

10.1109/DRC.2002.1029527

Filename

1029527