Low‐loss compact power combiner for solid state power amplifiers with high reliability

2016 ◽  
Vol 10 (3) ◽  
pp. 310-317 ◽  
Author(s):  
Mehrdad Gholami ◽  
Rony E. Amaya ◽  
Mustapha C.E. Yagoub
Keyword(s):  
Solid State ◽  
Power Amplifiers ◽  
High Reliability ◽  
State Power ◽  
Power Combiner ◽  
Low Loss

scholarly journals New Six-Way Waveguide to Microstrip Transition applied in X Band Spatial Power Combiner

2017 ◽  
Vol 6 (4) ◽  
pp. 42-44 ◽  
Author(s):  
D. Passi ◽  
A. Leggieri ◽  
R. Citroni ◽  
F. Di Paolo
Keyword(s):  
Solid State ◽  
Electric Field ◽  
High Power ◽  
Power Amplifiers ◽  
Return Loss ◽  
High Efficiency ◽  
State Power ◽  
Power Combiner ◽  
X Band

A Spatial Power Combiner is proposed using an innovative waveguide to microstrip transition capable to divide the electric field in six equal parts per card. This device can combine 12 MMIC Solid State Power Amplifiers in the whole X Band with 13 dB of return loss and only 2.2 dB losses in a small size, high power and high efficiency system.

Design Techniques and Intermodulation Analysis of Broad-Band Solid-State Power Amplifiers

1977 ◽  
Vol EMC-19 (2) ◽  
pp. 57-65
Author(s):  
Walter Ku ◽  
John Erickson ◽  
Richard Rabe ◽  
Gary Seasholtz
Keyword(s):  
Solid State ◽  
Power Amplifiers ◽  
Broad Band ◽  
State Power ◽  
Design Techniques

Making Satellites Reliable: The Definition and Design Considerations of Space-Borne Solid-State Power Amplifiers

2016 ◽  
Vol 17 (9) ◽  
pp. 24-31 ◽  
Author(s):  
Natanael Ayllon ◽  
Iain Davies ◽  
Vaclav Valenta ◽  
Cesar Boatella
Keyword(s):  
Solid State ◽  
Power Amplifiers ◽  
State Power ◽  
Design Considerations

Solid-State Power Amplifiers

2012 ◽  
pp. 145-172
Author(s):  
Denton J. Dailey
Keyword(s):  
Solid State ◽  
Power Amplifiers ◽  
State Power

Design and model studies for solid-state power amplification at 210 GHz

2011 ◽  
Vol 3 (3) ◽  
pp. 339-346
Author(s):  
Sebastian Diebold ◽  
Ingmar Kallfass ◽  
Hermann Massler ◽  
Matthias Seelmann-Eggebert ◽  
Arnulf Leuther ◽  
...  
Keyword(s):  
Solid State ◽  
Power Amplifiers ◽  
Communication Systems ◽  
State Power ◽  
Data Rate ◽  
High Electron ◽  
Large Signal ◽  
Gate Width ◽  
Power Added Efficiency ◽  
Transistor Model

The high millimeter-wave (mmW) frequency range offers new possibilities for high-resolution imaging and sensing as well as for high data rate wireless communication systems. The use of power amplifiers of such systems boosts the performance in terms of operating range and/or data rate. To date, however, the design of solid-state power amplifiers at frequencies about 210 GHz suffers from limited transistor model accuracy, resulting in significant deviation of simulation and measurement. This causes cost and time consuming re-design iterations, and it obstructs the possibility of design optimization ultimately leading to moderate results. For verification of the small-signal behavior of our in-house large-signal transistor model, S-parameter measurements were taken from DC to 220 GHz on pre-matched transistors. The large-signal behavior of the transistor models was verified by power measurements at 210 GHz. After model modification, based on process control monitor (PCM) measurement data, the large-signal model was found to match the measurements well. A transistor model was designed containing the statistical information of the PCM data. This allows for non-linear spread analysis and reliable load-pull simulations for obtaining the highest available circuit performance. An experimental determination of the most suitable transistor geometry (i.e. number of gate fingers and gate width) and transistor bias was taken on 100 nm gate length metamorphic high electron mobility transistor (mHEMT) transistors. The most suitable combination of number of fingers, gate width and bias for obtaining maximum gain, maximum output power, and maximum power added efficiency (PAE) at a given frequency was determined.

Sign in / Sign up

Export Citation Format

Share Document