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Author : B. P. ISRAELSEN
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of an L-band Low-noise Traveling-wave Amplifier written by B. P. ISRAELSEN and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of S-band Very-low Noise Traveling-wave Amplifier written by and published by . This book was released on 1962 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : L. Dombro
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of an 18 to 40 GHz Low Noise Traveling-Wave Tube Amplifier written by L. Dombro and published by . This book was released on 1970 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: A low noise traveling wave tube amplifier packaged with integral solid state power supply and permanent magnet focusing was developed to cover the frequency band 18 to 40 GHz. The amplifier noise figure lies between 13 and 14 dB; the minimum small signal gain is 32 dB, and the gain variation is plus or minus 2.7 dB. The minimum saturated power output is + 6 dbm. The tube employs a hollow beam six anode low noise electron gun. A unique ridge waveguide coupler was developed to cover the double waveguide band. A key factor in reducing gain variation was development of an improved 'skrunching' method for the fluted glass helix support structure. The tube completes a series of four low noise traveling wave tube amplifiers covering the 0.5 to 40 GHz frequency band. (Author).
Author : L. Dombro
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (493 download)
Download or read book Development of an 18 to 40 Ghz Low Noise Traveling-wave Tube Amplifier written by L. Dombro and published by . This book was released on 1970 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Defense Documentation Center (U.S.)
Publisher :
ISBN 13 :
Total Pages : 784 pages
Book Rating : 4.:/5 (1 download)
Download or read book Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and published by . This book was released on 1967 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert D. Frost
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of a 0.5 to 2.1 Ghz Low Noise Traveling-wave Tube Amplifier written by Robert D. Frost and published by . This book was released on 1967 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this program is the attainment of low-noise amplification over two octaves in a single traveling-wave tube. Noise figure is to be less than 6.5 dB from 0.5 to 2.1 GHz with a minimum of three milliwatts saturated power output. The work described herein has been aimed primarily at raising the power output to the required three milliwatt level and achieving uniform gain over the full band. This has been sought through the use of a servered helix, with the output section operating with higher voltage and lower gamma than the input, or low-noise section. Good results have been obtained with this method, the power output being greater than two milliwatts over practically the entire band. It is concluded that this approach is entirely feasible technically, and that future effort will be expended applying it to reduce gain variation at an increased power level. At present, noise figure of the tube is within the specification over all of the band. (Author).
Author : Robert Eastman Vehn
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.F/5 ( download)
Download or read book The Development of a Low-noise Backward-wave Amplifier Tube written by Robert Eastman Vehn and published by . This book was released on 1959 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of a Millimeter Low Noise Traveling-wave Amplifier written by and published by . This book was released on 1962 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1076 pages
Book Rating : 4.0/5 ( download)
Download or read book U.S. Government Research Reports written by and published by . This book was released on 1964 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. A. HARMAN
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book Low-noise C-band Traveling-wave Amplifier written by W. A. HARMAN and published by . This book was released on 1962 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research is presented on the development of an ultralow-noise traveling-wave tube operating in the 5.4- to 5.9-gigacycle band. Data are presented on 29 tubes built and tested during the course of the program. Most of these tubes were test vehicles used to evaluate a number of lownoise gun geometries. Final tubes were constructed with a two-section helix which permitted independent 360-degree phase shift control without any measurable deterioration in noise figure. Of the basic gun geometries tested, the magnetron injection gun exhibited the most promising noise figure data. Using this gun, a room-temperature noise figure of 4.1 db was achieved at 1650 gauss focusing field, which decreased to 3.8 db at a field fo 3500 gauss. With the tube immersed in liquid nitrogen the noise figure dropped to 3.4 db at 1650 gauss, and to 3.1 db at 3500 gauss. The 0.7-db improvement in noise figure that was observed at liquid nitrogen temperatures is in accord with theory. (Author).
Author : Odis P. McDuff
Publisher :
ISBN 13 :
Total Pages : 95 pages
Book Rating : 4.:/5 (184 download)
Download or read book The Development of a Low Noise Traveling Wave Parametric Amplifier written by Odis P. McDuff and published by . This book was released on 1961 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. W. KINAMAN
Publisher :
ISBN 13 :
Total Pages : 1 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of a Millimter Low-noise Traveling-wave Amplifier (u). written by E. W. KINAMAN and published by . This book was released on 1961 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. D. Frost
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (227 download)
Download or read book Development of a 2.0 to 8.0 Ghz Low Noise Permanent-magnet Traveling-wave Amplifier with Integral Power Supply written by R. D. Frost and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report for a program in which two very low-noise traveling-wave amplifiers covering the frequency range from 2.0 to 8.0 GHz have been developed. The amplifiers are focused by permanent magnet and are packaged with an integral power supply. Hence, by simply plugging the device into 115 volt, 60 Hz source one obtains a small signal amplification of 28 plus or minus 3dB with a noise figure less than 6 dB and a minimum saturated power output of 6.7 dBm or more over the entire double octave frequency range. The principal design techniques used in attaining this new ultra broadband amplifier include: a hollow beam low-noise gun having broadband characteristics; a straight field permanent magnet focusing arrangement; a severed helix where the input half is designed to minimize noise figure and the output half is designed to maximize power output while the combination is designed to minimize gain variation. The development of this ultra-broadband low-noise amplifier leads the way for development of similar amplifiers covering 0.5 to 2 GHz and 8 to 18 GHz. When these have been developed it will be possible to design wideband receivers and spectrum analyzers which are about half as complicated as present designs in the RF section. (Author).
Author : A. Presser
Publisher :
ISBN 13 :
Total Pages : 89 pages
Book Rating : 4.:/5 (227 download)
Download or read book Research Program on Low-noise Microwave Receiver Amplifying Devices written by A. Presser and published by . This book was released on 1960 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research concerned the development of solid-state devices and traveling wave tubes for use in a low noise microwave receiver. Two low-noise, L-band tunnel-diode amplifiers were built and delivered. Both amplifiers had voltage-gain-bandwidth products exceeding the objective specifications. The best experimental results were as follows: center frequency 1270 mc, bandwidth 64 mc, gain 26 db, noise figure 5 db. Three parametric subharmonic oscillators (pump frequency 5700 mc, signal frequency 2850 mc) were built and delivered. A four-terminal low-noise modulate-demodulate L-band parametric amplifier was built and tested. A traveling-wave-tube amplifier is described which has demonstrated a capability for very low noise operation in the S-band range of microwave frequencies. Effort included theoretical studies concerning noise reduction in beam devices, coupled with experimental tests. The final tube design achieved minimum tube noise figures as low as 2.6 db and broadband noise figures of less than 3.5 db in the 2100 - 3500 mc frequency range.
Author :
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (31 download)
Download or read book U.S. Government Research & Development Reports written by and published by . This book was released on 1966 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 1334 pages
Book Rating : 4.3/5 (126 download)
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1964-07 with total page 1334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
