The FBAB 9177 collapsible open conical elements deliver the same high-performance characteristics as the BBA 9106 biconical elements, including circular directional patterns in the H-plane, “8”-shaped patterns in the E-plane, and a fixed phase center with comparable gain. With their foldable design, the FBAB 9177 elements offer superior portability, requiring significantly less space for transport and storage, making them an ideal solution for efficient, high-performance testing in various environments.