The ACR2005I4-EVB is an evaluation board designed to facilitate engineering evaluation of the ACR200514 chip antenna across a typical operating frequency range of 433 MHz and 450–470 MHz, supporting LoRA, SigFox, and ISM band applications. The board measures 80 × 40 × 1 mm and features an SMA connector for direct connection to a calibrated Vector Network Analyzer (VNA) port. It includes a matching network with frequency-dependent component values: at 433 MHz, L1 = 68 nH, L2 = 1.8 nH, and C1 = 8.2 pF; at 450–490 MHz, L1 = 47 nH, L2 = 2.7 nH, and C1 = 6.8 nH. The board is RoHS/RoHS II compliant and incorporates a 50 O transmission line with a desired metal/ground clearance area of 40 × 24.25 mm. This evaluation board enables rapid antenna performance assessment and impedance matching validation for wireless communication system development.