C-BAND PHASED ARRAY CROSSED-FIELD AMPLIFIER DEVELOPMENT
Abstract
The program effort has two main objectives. The first objective is to demonstrate the feasibility of an RF turn-on, RF turn-off reentrant crossed- field amplifier. The objective of this effort is to obtain RF turn-off with a significantly reduced control electrode requirement (e.g., with dc bias) or by eliminating the turn-off electrode completely. To date no significant results have been obtained toward this objective. The second objective of this program is to increase the power output capability previously demonstrated by a factor of two. During this report period, the first slow wave circuit design for the high power amplifier was completed and cold test work on linear versions was begun. The initial transition match obtained was a 15 db return loss from either port over a bandwidth of 1 GHz. The circuit interaction impedance was measured to be approximately 35 ohms. The thermal properties of the anode (slow wave circuit) were also examined and tested and were found to be capable of sustaining the expected 30 kw of dissipation power.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1967
- Accession Number
- AD0828268
Entities
People
- Andrew Wilczek