Small–Signal Gain Investigation of Folded Cascode Op-Amps

2018 ◽  
pp. 3-14
Author(s):  
Anil Sharma ◽  
Tripti Sharma
Keyword(s):  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain ◽  
Op Amps ◽  
Folded Cascode

Optimization of InP DHBT stacked-transistors for millimeter-wave power amplifiers

2018 ◽  
Vol 10 (9) ◽  
pp. 999-1010 ◽  
Author(s):  
Michele Squartecchia ◽  
Tom K. Johansen ◽  
Jean-Yves Dupuy ◽  
Virginio Midili ◽  
Virginie Nodjiadjim ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Output Power ◽  
Heterojunction Bipolar Transistors ◽  
Power Amplifiers ◽  
Small Signal Gain ◽  
Small Signal ◽  
Large Signal ◽  
Signal Gain ◽  
Power Added Efficiency ◽  
Saturated Output Power

AbstractIn this paper, we report the analysis, design, and implementation of stacked transistors for power amplifiers realized on InP Double Heterojunction Bipolar Transistors (DHBTs) technology. A theoretical analysis based on the interstage matching between all the single transistors has been developed starting from the small-signal equivalent circuit. The analysis has been extended by including large-signal effects and layout-related limitations. An evaluation of the maximum number of transistors for positive incremental power and gain is also carried out. To validate the analysis, E-band three- and four-stacked InP DHBT matched power cells have been realized for the first time as monolithic microwave integrated circuits (MMICs). For the three-stacked transistor, a small-signal gain of 8.3 dB, a saturated output power of 15 dBm, and a peak power added efficiency (PAE) of 5.2% have been obtained at 81 GHz. At the same frequency, the four-stacked transistor achieves a small-signal gain of 11.5 dB, a saturated output power of 14.9 dBm and a peak PAE of 3.8%. A four-way combined three-stacked MMIC power amplifier has been implemented as well. It exhibits a linear gain of 8.1 dB, a saturated output power higher than 18 dBm, and a PAE higher than 3% at 84 GHz.

Toward a zero small‐signal gain laser power amplifier

1974 ◽  
Vol 25 (10) ◽  
pp. 602-605 ◽  
Author(s):  
G. T. Schappert ◽  
E. E. Stark
Keyword(s):  
Power Amplifier ◽  
Laser Power ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain

37.2dB small-signal gain from Er/Yb Co-doped fiber amplifier with 20mW pump power

2008 ◽  
Vol 40 (1) ◽  
pp. 88-91 ◽  
Author(s):  
S.W. Harun ◽  
H.A. Abdul-Rashid ◽  
S.Z. Muhd-Yassin ◽  
M.K. Abd-Rahman ◽  
K.K. Jayapalan ◽  
...  
Keyword(s):  
Pump Power ◽  
Fiber Amplifier ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain ◽  
Co Doped

Numerical study on the maximum small-signal gain coefficient in passively mode-locked fiber lasers

2017 ◽  
Author(s):  
Xin Tang ◽  
Jian Wang ◽  
Zhaoyang Chen ◽  
Chengyou Lin ◽  
Yingchun Ding
Keyword(s):  
Fiber Lasers ◽  
Numerical Study ◽  
Gain Coefficient ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain

Pressure Dependence of the Small-Signal Gain and Saturation Intensity of a Copper Bromide Laser

2017 ◽  
Vol 34 (8) ◽  
pp. 084201 ◽  
Author(s):  
M. E. Aeinehvand ◽  
S. Behrouzinia ◽  
M. K. Salem ◽  
M. Elahei ◽  
K. Khorasani
Keyword(s):  
Pressure Dependence ◽  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain ◽  
Copper Bromide ◽  
Saturation Intensity ◽  
Copper Bromide Laser

scholarly journals Tenotomy does not affect saccadic velocities: Support for the “small-signal” gain hypothesis

2006 ◽  
Vol 46 (14) ◽  
pp. 2259-2267 ◽  
Author(s):  
Z. Wang ◽  
L.F. Dell’Osso ◽  
Z. Zhang ◽  
R.J. Leigh ◽  
J.B. Jacobs
Keyword(s):  
Small Signal Gain ◽  
Small Signal ◽  
Signal Gain
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