A NEW TYPE OF BROADBAND LOW NOISE RADIO FREQUENCY AMPLIFIER,
Abstract
The paper will discuss an amplifier based on a new technique which provides significant improvement in receiver sensitivity. As an RF amplifier it is capable of very wide bandwidth gain with very low noise figures, - less than 1 db at room temperature. Other features are large dynamic range, singular freedom from spurious output, and both open and short circuit stability. The technique has come to be known as phase shift amplification and the device itself as the Phase Shift Amplifier. In a sense it is parametric. It is a device in which the phase of an R. F. signal is made to vary by passing it through an energy storage medium whose properties vary with the input signal voltage. One common form of energy storage element is a voltage variable capacitor, or varactor diode, as the high frequency semiconductor device is known.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1966
- Accession Number
- AD0634663
Entities
People
- Herbert Brett
Organizations
- United States Army Communications-Electronics Command