DEVELOPMENT OF A C-BAND PHASED ARRAY CROSSED-FIELD AMPLIFIER
Abstract
A C-band phased array crossed-field amplifier, capable of delivering 1 Mw peak power with 10 kw average power output over a 500 MHz band centered at 5.65 GHz, has been developed. This tube is dc operated with control electrode turn off and is packaged in a 10 inch diameter magnetically shielded package with integral permanent magnets. This tube employs a new slow wave structure developed under an earlier program. Matching studies on this circuit, the helix coupled vane (HCV) circuit, have resulted in a good match over approximately 1 GHz. A cathode material study evaluated several materials for use in the high power dc operated amplifier. An impregnated tungsten matrix type cathode was used on the program as a result of this study. Peak power levels of 700 kw to 805 kw at a pulse length of approximately 32 microsec with nearly full instantaneous bandwidth resulted from dc operation of a vehicle in an electromagnet. This tube subsequently operated at 5.9 GHz and generated 1 Mw peak power output with 10 kw of average power output. Phase measurements were performed on three vehicles.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1968
- Accession Number
- AD0831742
Entities
People
- A. Wilczek