4x4 Butler Matrix design by using circular bend

In these paper two types of design 4 times 4 Butler Matrix is design and fabricated on FR-4 board. The design specification is at 2.4 GHz for both of its. The circular bend technique is used. Investigation is about design of compact and usual Butler Matrix. The investigation scope includes the length and width effect of the design. The simulation and fabrication results will be compared and discussed.