Exhibit 22.1


ELECTROMAGNETIC SCIENCES, INC. 
AND SUBSIDIARIES 



Subsidiaries of the Registrant: 

EMS Technologies, Inc. 
660 Engineering Drive 
Post Office Box 7700
Norcross, Georgia 30091-7700 

LXE Inc. 
303 Research Drive 
Post Office Box 92600 
Norcross, Georgia 30092-9600 

CAL Corporation 
1050 Morrison Drive 
Ottawa, Ontario K2H 8K7
CANADA