**3. Hybrid material dual-band and dual-polarization antenna design**

As the world continues to move to fully integrated multifunction antennas, the design of new multiband and multimode antenna geometries continues to yield structures that are more complicated to manufacture. However, current challenges in maintaining, upgrading, and networking an ever-increasing number of antenna nodes are alleviated through adapting these types of multifunction antennas and other RF devices. The low profile and lightweight designs of references [15–18] show great promise for multifunction antenna applications. This chapter compares the performance of a multifunction antenna prototyped using traditional off-theshelf materials and fabrication techniques, to the same antenna geometry manufactured using AM materials and 3D printing manufacturing processes. The idea being that the versatility allowed via AM of antennas can help navigate the newfound complexities of emerging multifunction antenna designs.
