The objective of the proposed research is to advance additively manufactured millimeter-wave identification (mmID) systems by addressing the dual challenges of wide angular coverage and sustainable operation in emerging 5G IoT and wearable applications. Building on prior transmitarray and lab-on-chip demonstrations, this work will pursue two complementary directions: (i) the design and fabrication of a selective laser sintered (SLS) Luneburg lens mmID system capable of near-hemispherical angular coverage with polarization diversity and retrodirectivity, and (ii) the development of a fully additively manufactured, cross-circularly polarized mmID module that eliminates batteries by harvesting body heat through thermoelectric generation, while integrating biosensing capabilities. Together, these efforts aim to demonstrate scalable, lightweight, and multifunctional platforms that extend mmID performance toward real-world deployment in 5G enabled cyberphysical and wearable systems.