Measured Performance Characteristics of Reflective Butler Matrices

摘要

A reflective Butler matrix is described which has the full electrical performance of a conventional Butler matrix while requiring only 1/2 the usual size and number of circuit components and ports. Reflective networks having eight and 16 ports were built, tested, and evaluated at 1060 MHz. Details of the circuit design and fabrication are included. The measured performance characteristics of the reflective Butler matrix are shown to compare well with those of conventional Butler matrix. (Author)