Performance of A 1-2 GHz Preamplifier for Stochastic Beam Cooling System

PDF Version Also Available for Download.

Description

The characteristics of the LBL continuous-wave wide-band low-noise preamplifier, version B, have been presented over a frequency range of approximately 1-2GHz. In this preamplifier the source leads of the transistors in the first two stages are soldered directly to copper studs which are attached to the copper enclosure box to get better thermoconductivity. Two sets of noise figures were presented with one set optimized at 3000 K and the other at 18 K. When the N.F. was optimized at 80 K the result was very much the same as the one optimized at l8 K. It was found that different ... continued below

Physical Description

14 pages

Creation Information

Lo, C.C. & Leskovar, B. April 1, 1983.

Context

This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

Who

People and organizations associated with either the creation of this report or its content.

Publisher

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this report. Follow the links below to find similar items on the Digital Library.

Description

The characteristics of the LBL continuous-wave wide-band low-noise preamplifier, version B, have been presented over a frequency range of approximately 1-2GHz. In this preamplifier the source leads of the transistors in the first two stages are soldered directly to copper studs which are attached to the copper enclosure box to get better thermoconductivity. Two sets of noise figures were presented with one set optimized at 3000 K and the other at 18 K. When the N.F. was optimized at 80 K the result was very much the same as the one optimized at l8 K. It was found that different transistors behaved differently Hence individual amplifier must be optimized at the intended operating temperature. The VSWR data presented are those of the room temperature. The change in VSWR at low temperatures are not significantly different from those at room temperature. The output power as a function of input power at various frequencies and their intermodulation products are very much the same at all temperatures. The preamplifier is unconditionally stable with an open or shorted sliding line at the input port.

Physical Description

14 pages

Language

Item Type

Identifier

Unique identifying numbers for this report in the Digital Library or other systems.

  • Report No.: FERMILAB-PBAR-NOTE-283
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/982851 | External Link
  • Office of Scientific & Technical Information Report Number: 982851
  • Archival Resource Key: ark:/67531/metadc1012628

Collections

This report is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this report?

When

Dates and time periods associated with this report.

Creation Date

  • April 1, 1983

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

Description Last Updated

  • Oct. 25, 2017, 1:58 p.m.

Usage Statistics

When was this report last used?

Congratulations! It looks like you are the first person to view this item online.

Interact With This Report

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Lo, C.C. & Leskovar, B. Performance of A 1-2 GHz Preamplifier for Stochastic Beam Cooling System, report, April 1, 1983; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc1012628/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.