DEVELOPMENT OF A 0.5 TO 2.1 GHZ LOW-NOISE PERMANENT-MAGNET TRAVELING-WAVE AMPLIFIER WITH INTEGRAL POWER SUPPLY.
Abstract
A final report is made for a program in which a low-noise traveling-wave amplifier covering the frequency range from 0.5 to 2.1 GHz was developed. The amplifier is focused by a permanent magnet and 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 31 plus or minus 1.5 dB with a noise figure less than 6.5 dB and a minimum saturated power output of 4.8 dBm or more over the entire double octave frequency range. The principal design techniques used in attaining this new ultra broadband amplifier include: (a) A hollow beam low-noise gun having broadband characteristics; (b) A straight field permanent magnet focusing arrangement; and (c) 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 makes it possible to design wideband receivers and analyzers which are about half as complicated as present designs in the RF section. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1967
- Accession Number
- AD0828037
Entities
People
- F. T. Mauch
- R. D. Frost
Organizations
- Watkins-Johnson Company