Control of Millimeter-Wave Properties of High-Efficiency Double Drift Region IMPATTs through Enhancement of Saturation Current

1993 ◽  
Vol 137 (1) ◽  
pp. 267-275 ◽  
Author(s):  
N. Mazumder ◽  
S. K. Roy
Keyword(s):  
Millimeter Wave ◽  
High Efficiency ◽  
Drift Region ◽  
Saturation Current ◽  
Wave Properties

scholarly journals Noise Performance of Heterojunction DDR MITATT Devices Based on at W-Band

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Suranjana Banerjee ◽  
Aritra Acharyya ◽  
J. P. Banerjee
Keyword(s):  
Spectral Density ◽  
Millimeter Wave ◽  
Power Output ◽  
Drift Region ◽  
Noise Performance ◽  
Device Structure ◽  
Noise Spectral Density ◽  
W Band ◽  
Noise Measure ◽  
Wave Properties

Noise performance of different structures of anisotype heterojunction double-drift region (DDR) mixed tunneling and avalanche transit time (MITATT) devices has been studied. The devices are designed for operation at millimeter-wave W-band frequencies. A simulation model has been developed to study the noise spectral density and noise measure of the device. Two different mole fractions and of Ge and corresponding four types of device structure are considered for the simulation. The results show that the -Si heterojunction DDR structure of MITATT device excels all other structures as regards noise spectral density (  sec) and noise measure (33.09 dB) as well as millimeter-wave properties such as DC-to-RF conversion efficiency (20.15%) and CW power output (773.29 mW).

High Power High Efficiency Millimeter Wave TED's with Reverse-Biased Hetero-Junction Cathode Contact

1985 ◽  
Author(s):  
M.R. Friscourt ◽  
P.A. Rolland ◽  
J.P. Duchemin ◽  
J. Lacombe
Keyword(s):  
Millimeter Wave ◽  
High Power ◽  
High Efficiency

Millimeter-Wave Properties and Structure of Gradient Co–Ir Films Deposited on Opal Matrix

2014 ◽  
Vol 13 (1) ◽  
pp. 3-9 ◽  
Author(s):  
Anatoly B. Rinkevich ◽  
Mikhail I. Samoilovich ◽  
Svetlana M. Klescheva ◽  
Dmitry V. Perov ◽  
Albert M. Burkhanov ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Opal Matrix ◽  
Wave Properties

A high power, high efficiency millimeter-wave pseudomorphic HEMT

2002 ◽  
Author(s):  
P.M. Smith ◽  
D.W. Ferguson ◽  
W.F. Kopp ◽  
P.C. Chao ◽  
W. Hu ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
High Power ◽  
High Efficiency
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