A 32-Gigahertz Traveling-Wave Maser Design
Abstract
A new 32-GHz traveling-wave maser design is presented. The new ruby maser design uses a very simple slow-wave structure consisting of a smooth rectangular waveguide with no metal irises or steps. Ruby-filled and evanescent sections of waveguide form resonators, creating a slow-wave structure with high slowing factors at both the signal and pump frequency bands. This approach results in a high gain-bandwidth product at the signal frequency and efficient use of pump power, thereby reducing the heat load. Advantages of this approach include reduced machining costs and the ability to operate the maser in a commercially available 4-K Gifford-McMahon cycle refrigerator.
- Publication:
-
Interplanetary Network Progress Report
- Pub Date:
- November 2004
- Bibcode:
- 2004IPNPR.159C...1S