A SIMPLE WIDEBAND 90 DEGREE PHASE SPLITTER FOR SPEECH OR MUSIC
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1961
- Accession Number
- AD0271757
Entities
People
- Lawrence V. Kriger
Organizations
- Air Force Cambridge Research Laboratories