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X-band ultralow-noise maser amplifier performance
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Glass, G. W. Johnson, D. L. Ortiz, G. G. |
| Copyright Year | 1994 |
| Description | Noise temperature measurements of an 8440-MHz ultralow noise maser amplifier (ULNA) have been performed at subatmospheric, liquid-helium temperatures. The traveling-wave maser was operated while immersed in a liquid helium bath. The lowest input noise temperature measured was 1.43 +/- 0.16 K at a physical temperature of 1.60 K. At this physical temperature, the observed gain per centimeter of ruby was 4.9 dB/cm. The amplifier had a 3-dB bandwidth of 76 MHz. |
| File Size | 390838 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19940025169 |
| Archival Resource Key | ark:/13960/t09w5cd7r |
| Language | English |
| Publisher Date | 1994-02-15 |
| Access Restriction | Open |
| Subject Keyword | Lasers And Masers Superhigh Frequencies Deep Space Network Noise Temperature Microwave Amplifiers Masers Bandwidth Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
