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In-phase power-combined frequency tripler at 300 ghz
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Lee, Choonsup Javadi, Hamid Chattopadhyay, Goutam Lin, Robert Mehdi, Imran Gill, John Maestrini, Alain Ward, John |
| Copyright Year | 2009 |
| Description | This design starts with commercial 85- to 115-GHz sources that are amplified to as much as 250 mW using power amplifiers developed for the Herschel Space Observatory. The frequency is then tripled using a novel waveguide GaAs Schottky diode frequency tripler. This planar diode produces 26 mW at 318 GHz. Peak conversion efficiency is over 15 percent, and the measured bandwidth of about 265 - 30 GHz is limited more by the driving source than by the tripler itself. This innovation is based on an integrated circuit designed originally for a single-chip 260- to 340-GHz balanced tripler. The power-combined version has two mirror-image tripler chips that are power-combined in-phase in a single waveguide block using a compact Y-junction divider at the input waveguide, and a Y-junction combiner at the output waveguide. The tripler uses a split-block waveguide design with two independent DC bias lines. |
| File Size | 66880 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090008641 |
| Archival Resource Key | ark:/13960/t2b907q4s |
| Language | English |
| Publisher Date | 2009-02-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Waveguides Integrated Circuits Frequencies Power Amplifiers Frequency Multipliers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
