Noise induced gain saturation in the ultrasonic traveling wave amplifier
نویسندگان
چکیده
منابع مشابه
Gyro-Traveling Wave Amplifier
The theory, design and experimental results of a wideband 140 GHz, 1 kW pulsed gyro-traveling wave amplifier are presented. The gyro-TWA operates in the HE(0,6) mode of an overmoded quasi-optical waveguide using a gyrating electron beam. The electromagnetic theory, interaction theory, design processes and experimental procedures are described in detail. At 37.7 kV and 2.7 A beam current, the ex...
متن کامل2 – 20 - GHz GaAs Traveling - Wave Amplifier
[7] 1.. Lewin, “Propagation in curved and twisted waveguides of rectam jyrlar cross-section,” in Proc. Inst. E[ectr. Eng., 1955, vol. 102, B,’ 1, pp. 75-80. 1.. Lewin and T. Ruehle, “Propagation in twisted square waveguide,” IEEE Trans. Microwave Theoiy Tech., vol. MTT-28, pp. 44–48, 1980. 1.. Lewin, Theory of Waveguides. London: Newnes-Butherworths, 1.975,pp. 96-101. 1.. Lew~n, D. C. Chang, an...
متن کاملPhotonic-band-gap traveling-wave gyrotron amplifier.
We report the experimental demonstration of a gyrotron traveling-wave-tube amplifier at 250 GHz that uses a photonic band gap (PBG) interaction circuit. The gyrotron amplifier achieved a peak small signal gain of 38 dB and 45 W output power at 247.7 GHz with an instantaneous -3 dB bandwidth of 0.4 GHz. The amplifier can be tuned for operation from 245-256 GHz. The widest instantaneous -3 dB b...
متن کاملTraveling Wave Ultrasonic Motor: Free Stator Modeling
? Users may download and print one copy of any publication from the public portal for the purpose of private study or research. ? You may not further distribute the material or use it for any profit-making activity or commercial gain ? You may freely distribute the URL identifying the publication in the public portal ? Take down policy If you believe that this document breaches copyright please...
متن کاملAdjustable Gain Cascode Low Noise Amplifier
Tower mounted amplifiers (TMA) serve to lower the system noise figure (NF) in cellular base-stations. For performance reasons, the TMA is located as near to the receiving aerial as practical and has to be connected to the rest of the radio at the tower’s base by a long run of coaxial cable. The parameters critical to TMA performance are low NF for reasons of optimizing coverage area, high gain ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the IEEE
سال: 1967
ISSN: 0018-9219
DOI: 10.1109/proc.1967.5772