Accession Number:

AD0271757

Title:

A SIMPLE WIDEBAND 90 DEGREE PHASE SPLITTER FOR SPEECH OR MUSIC

Descriptive Note:

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

Report Date:

1961-10-01

Pagination or Media Count:

1.0

Abstract:

Synthesis procedures and practical design and construction data are given for a simple all-pass type 90 degrees phase splitter circuit. Optimizing techniques are employed to gain improved performance in synthesizing 2 classical very low Q series tuned circuits. The optimized results give a phase error of less than 0.19 degrees over the narrow frequency ratio of 4 to 1. By shunting an additional passive element inductor or capacitor in each series circuit, a phase error of less than 5 degrees is realized over a wideband frequency ratio of 350 to 1. The theoretical phase and amplitude response for the wideband case is accurately approached in a laboratory model. An appendix is included of optional all-pass networks with formulas which may be used for the wideband case to reduce phase error at a sacrifice in simplicity. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE