COPPER OXIDE MODULATORS IN CARRIER SYSTEMS 337 



A number of cases have been worked out of efficiencies and im- 

 pedances in such modulators for transmission betw een an input signal 

 and a single-sideband output signal. The modulating element has 

 been assumed perfect (^ = 1) and the terminations pure resistances. 

 The results are shown in Table II. 



Acknowledgments 



The writer wishes to acknowledge his appreciation of the assistance 

 of numerous associates in the Bell Telephone Laboratories in arriving 

 at the views on copper oxide modulator performance recorded in this 

 paper. In particular, acknowledgment is due to Mr. R. W. Chesnut, 

 Dr. E. Peterson and Dr. G. R. Stibitz. 



