ACAR3705-S698 is a 4G/LTE ceramic chip antenna designed for multi-band wireless connectivity across 700–960 MHz, 1710–2170 MHz, and 2500–2700 MHz frequency ranges, with additional support for 2G/3G/GSM standards. The antenna features linear polarization, a 50 O impedance, and a maximum VSWR of 4.5:1, delivering peak gains of 1.07 dBi, 4.03 dBi, and 3.76 dBi across the three operating bands with efficiency ratings of 55%, 70%, and 50% respectively. With compact dimensions of 37.0 × 5.0 × 5.0 mm and RoHS/RoHS II compliance, it is well-suited for IoT, M2M, telecommunications, wireless modules, mobile devices, and consumer electronics requiring broadband cellular connectivity. The antenna operates reliably across a temperature range of -40°C to +85°C and is optimized for integration into compact PCB designs with recommended matching components including a 6.8 nH inductor and 3 pF capacitor.