NARROW-BAND MATCHED-CHANNEL IF AMPLIFIERS. PART II. CIRCUIT DESIGN AND PERFORMANCE,
Abstract
The design and performance characteristics are presented of several narrow-band matched-channel IF amplifiers which have been designed and developed at the Radiolocation Research Laboratory. A previous report discussed the synthesis and theoretical aspects of a general circuit design for narrow-band matched-channel IF amplifiers. The present amplifiers consist of four doubletuned stages followed by a broad-band output stage designed to drive 50 ohm cables. The stages are presently aligned as cascaded critically-coupled stages as a compromise of simplicity, selectivity, and the linearity of phase; but the same design may be aligned to realize 9th order Butterworth, Chebyshev or maximally-flatdelay responses as discussed in the previous report. A prototype 5KC bandwidth matched-channel IF amplifier (BM I) was completed in June, 1962, and considerable data are available on the mismatch characteristics of that amplifier. The first 5KC bandwidth matched-channel IF amplifier of the second model (BM II) was completed May 7, 1963; the first 25KC bandwidth matched-channel IF amplifier (BM III) was completed July 27, 1963; and the first 1 KC bandwidth matched-channel IF amplifier (BM IV) was completed August 16, 1963. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1963
- Accession Number
- AD0424947
Entities
People
- Richard Frank Donnelly
Organizations
- University of Illinois Urbana–Champaign