Abstract :
In the October 1984 IEEE Transactions on Microwave Theory and Techniques, the above paper, a technology summary edited by B. E. Spielman, was published. This paper included inputs from the Technical Committees MTT-6, MTT-7, MTT-15, and MTT-16. A correction should be made to the "Microwave Systems--1983" section of the paper, pp. 1377-1378.