Logical pattern synthesis

Antennas with high performance characteristics can be designed by the use of logical and switching operations to combine the radiation patterns from a multiple antenna system. The mathematical and engineering principles employed are similar to those used in digital computer design. This paper presents a general discussion of logical operators useful in antenna design. A design procedure for the synthesis of arbitrary antenna patterns by a piece-wise approximation scheme based on these principles is developed. Logical pattern synthesis is then used in theoretical and experimental examples to demonstrate the advantages of logical antenna systems over conventional antenna systems of comparable complexity.