An origami-based Tightly Coupled Dipole Array (TCDA) is proposed for small satellite applications. The proposed TCDA is the first to employ a rigid-flexible two-layered accordion structure. The array operates across 0.4-2.4 GHz with textVSWR < 3 at broadside and 0.5-2.4 GHz with textVSWR <3 when scanning down to 45° in the E-, D-, and H-planes, and without additional FSS superstrates. An 8× 8 prototype was fabricated using Kapton and FR4 and tested to verify the bandwidth and gain of a finite array. The fabricated prototype was demonstrated to be packable, low-profile, and lightweight (only 1.1kg). Notably, when packed, the array has a one-dimensional size reduction of 75%. The packing compression is made possible by eliminating vertical PCB boards and incorporating the balun feeds within the dipole layer. This TCDA is one of the first foldable, low profile, and low-scanning ultra-wideband array in the literature.