dditive manufacturing (AM), along with metallisation, enables the creation of a variety of antenna types for different industries. Three-dimensional (3D) printing, a common term for AM, allows for fast development, opens the possibility to build complex antenna parts and configurations with better cost control than traditional methods. Examples include 3D printed antenna substrates, parabolic reflectors, and dielectric lenses, as seen in studies [1–7]. AM can also be used for fixed 3D printed antennas, as detailed in [8], and adaptive designs like 4D antennas, as shown in [9]. This study explores the design, fabrication, and performance evaluation of rectangular patch antennas optimised for 5G applications, specifically targeting a central frequency of 4.7 GHz. Utilising traditional techniques and the fused deposition modelling (FDM) technique, one of the most used AM techniques, a total of ten antennas was fabricated. These included four laminate antennas constructed from different substrates, Bungard FR4, Rogers RT/duroid 5880, Rogers RO4350B, and Rogers RT/duroid 6010LM, respectively named from C1 to C4. Additionally, six 3D printed patch antennas were created by printing the substrates using different polymers and by employing varied metallisation techniques, resulting in a patch using PETG (Fiberlogy Easy PETG Black) with copper foil (P1), one with PLA (Fiberlogy Easy PLA Graphite) and copper foil (P2), another with PLA and silver fabric (P3), one with PLA and silver coating (P4), one with Zetamix ε = 2.2 and copper foil (P5) and lastly one with Zetamix ε = 7.5 (P6). For comparison, a Zetamix ε = 4.5 patch antenna (P7) was simulated for comparison with the remaining 3D printed patch antennas.