ON SOLID-STATE CIRCUITS.
Abstract
Results are presented of a study program to advance the state of the art in UHF limiters, octave-band ferrite circulators, and low-noise receivers having linear phase response suitable for pulse-compression applications. Two practical varactor limiters were developed -- a broad-band configuration (octave range) using a PN diode, and a low threshold ultra-dynamic range configuration. The broad-band limiter was successfully tested at high pulse powers using a 1-megawatt radar. Its burnout energy was in excess of 87,000 ergs, provided 30 db of protection, had a recovery time of 0.5 micrn/econds, and did not exhibit any spike leakage. The low-threshold limiter had a limiting level of less than -20 dbm, an insertion loss of less than 2 db, and a dynamic range of about 70 db. A comprehensive theoretical and experimental technique was developed that was applied to the design anddevelopment of octave-wide Y-junction ferrite circulators. These circulators had isolations of greater than 20 db, SWR's of less than 1.4, and insertion losses of about 0.5 db over the complete octave range. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1963
- Accession Number
- AD0429724
Entities
People
- E. W. Sard
- K. Siegel
- S. Hamilton
- S. Okwit
- W. W. Heinz