scholarly journals Characterization of the Interfacial Toughness in a Novel “GaN-on-Diamond” Material for High-Power RF Devices

2019 ◽  
Vol 1 (3) ◽  
pp. 354-369 ◽  
Author(s):  
Dong Liu ◽  
Stephen Fabes ◽  
Bo-Shiuan Li ◽  
Daniel Francis ◽  
Robert O. Ritchie ◽  
...  
Keyword(s):  
High Power ◽  
Interfacial Toughness ◽  
Rf Devices

Design and realization of GaN RF-devices and circuits from 1 to 30 GHz

2010 ◽  
Vol 2 (1) ◽  
pp. 115-120 ◽  
Author(s):  
Jutta Kühn ◽  
Markus Musser ◽  
Friedbert van Raay ◽  
Rudolf Kiefer ◽  
Matthias Seelmann-Eggebert ◽  
...  
Keyword(s):  
High Power ◽  
Integrated Circuit ◽  
Gate Length ◽  
Microwave Integrated Circuit ◽  
Frequency Range ◽  
Monolithic Microwave Integrated Circuit ◽  
X Band ◽  
Rf Devices ◽  
Line Technology

The design, realization, and characterization of highly efficient powerbars and monolithic microwave integrated circuit (MMIC) high-power amplifiers (HPAs) with AlGaN/GaN high electronic mobility transistors (HEMTs) are presented for the frequency range between 1 and 30 GHz. Packaged powerbars for the frequency range between 1 and 6 GHz have been developed based on a process called GaN50 with a gate length of 0.5 μm. Based on a GaN25 process with a gate length of 0.25 μm, high-power MMIC amplifiers are presented starting from 6 GHz up to advanced X-band amplifiers and robust LNAs in microstrip transmission line technology.

Characterization of a 808 nm High power Diode Laser module

2008 ◽  
Vol 4 (4) ◽  
pp. 1-10
Author(s):  
Ashraf. EL-Sherif ◽  
Mahmoud Hassan ◽  
Ayman Mokhtar ◽  
Ahmed Samy
Keyword(s):  
Diode Laser ◽  
High Power ◽  
Laser Module ◽  
Power Diode ◽  
High Power Diode Laser

scholarly journals Characterization of High-Power Turbomachinery Tilting Pad Journal Bearings: First Results Obtained on a Novel Test Bench

Lubricants ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 4 ◽  
Author(s):  
Enrico Ciulli ◽  
Paola Forte ◽  
Mirko Libraschi ◽  
Lorenzo Naldi ◽  
Matteo Nuti
Keyword(s):  
High Power ◽  
Test Bench ◽  
Journal Bearings ◽  
Tilting Pad ◽  
First Results ◽  
Tilting Pad Journal Bearings

Characterization of Flat Radomes for 18-45 GHz High-Power Horn Antennas

2021 ◽  
pp. 1-1
Author(s):  
Conrad Andrews ◽  
Ljubodrag Boskovic ◽  
Dejan S. Filipovic
Keyword(s):  
High Power ◽  
Horn Antennas

High-power InAlAs/InGaAs Schottky barrier photodiodes for analog microwave signal transmission

2022 ◽  
Vol 43 (1) ◽  
pp. 012302
Author(s):  
K. S. Zhuravlev ◽  
A. L. Chizh ◽  
K. B. Mikitchuk ◽  
A. M. Gilinsky ◽  
I. B. Chistokhin ◽  
...  
Keyword(s):  
Schottky Barrier ◽  
Transmission Lines ◽  
High Power ◽  
High Speed ◽  
Signal Transmission ◽  
Mesa Structure ◽  
Microwave Characterization ◽  
Absorbing Layer ◽  
Analog Transmission

Abstract The design, manufacturing and DC and microwave characterization of high-power Schottky barrier InAlAs/InGaAs back-illuminated mesa structure photodiodes are presented. The photodiodes with 10 and 15 μm mesa diameters operate at ≥40 and 28 GHz, respectively, have the output RF power as high as 58 mW at a frequency of 20 GHz, the DC responsivity of up to 1.08 A/W depending on the absorbing layer thickness, and a photodiode dark current as low as 0.04 nA. We show that these photodiodes provide an advantage in the amplitude-to-phase conversion factor which makes them suitable for use in high-speed analog transmission lines with stringent requirements for phase noise.

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