Title

Study of I.F. Transformers for Single Sideband Operation

Creator

Cohn, George I.

Weber, Erwin W.

Yuen, Paul C.

Date

1961

Identifier

PB162810

AD0254028

Abstract

Research continued on the evaluation of electromechanical filters and the design and testing of filters using ferroelectric ceramic resonators with coils and capacitors. The extension of electromechanical filters to higher center frequencies is discussed. The major difficulties encountered in an attempt to do this are transducer loss and reduction in size of resonator elements. Several filters with fifth order Tchebyscheff characteristics were designed. The one designed for 442.5 kc was breadboarded and tested. The resulting network had a 2.8 db insertion loss in the pass band and 4 db below the center frequency response had a bandwidth of 3 kc. The attenuation curve exhibited a non symmetrical shape.

Date Issued

1961-01

Extent

45

Corporate Author

Electronics Research Laboratory, Illinois Institute of Technology

PB Number

PB162810

AD Number

AD-254028

Contract

DA 36-039-sc-78342

NTRL Accession Number

PB162810

Distribution Conflict

Yes

Index In

U.S. Government Research Reports, Vol. 38, No. 9, p. S-16

Index Price

$4.60

Distribution Classification

2

DTIC Record Exists

No

Report Availability

Not available via Contrails

Type

report