Datasheet ANT-868-CPA 868 MHz Directional Embedded Ceramic Patch Antenna The 868-CPA compact ceramic patch antenna offers directional signaling at 868 MHz with a footprint of only 25 mm x 25 mm on a recommended ground plane size of 70 mm x 70 mm. The 868-CPA antenna is ideal for low-power, wide- area (LPWA) applications including LoRaWAN , Sigfox , remote controls and other 868 MHz ISM band applications where directional signaling is desired. The 868-CPA antenna mounts to the printed circuit board (PCB) using re-peelable 5000NS adhesive backing which allows for repositioning or reorientation of the antenna. The pin-type connection feeds through the PCB where it is soldered to the feed line. Features Applications Directional radiation pattern orthogonal to Low-power, wide-area (LPWA) networks antenna surface LoRaWAN Compact size, 25 mm x 25 mm x 4 mm Sigfox Peak gain: 1.4 dBi when used with a 70 mm Smart Home networking x 70 mm ground plane. Larger ground planes Security systems provide increased gain performance Home weather stations Pin-mount solder connection for direct PCB attachment Remote sensing, monitoring and control Right-hand circularly polarized (RHCP) Security systems Durable re-peelable self-adhesive backing Industrial machinery Keyless entry systems UHF RFID devices Hand-held devices Ordering Information Part Number Description ANT-868-CPA 868 MHz ceramic patch antenna Available from Linx Technologies and select distributors and representatives.ANT-868-CPA Datasheet Electrical Specifications Frequency Range 863 MHz to 870 MHz ANT-868-CPA VSWR (max.) 9.5 Return Loss (max.) -1.8 Peak Gain (dBi) 1.4 Average Gain (dBi) -5.9 2 25 Efficiency (%) 33 .079 .984 Polarization RHCP 0.70 Radiation Directional .028 Max Power 8 W Wavelength 1/4-wave 0.80 Electrical Type Radiating patch .031 Impedance 50 Connection Pin type 25 Weight 13.2 g (0.46 oz) 2.50 .984 Dimensions 25.0 mm x 25.0 mm x 4.0 mm (1.00 in x 1.00 in x 0.16 in) .098 4 Operating Temperature Range -40 C to +85 C .157 ESD Sensitivity NOT ESD sensitive. As a best practice, Linx may use ESD packaging. Electrical specifications and plots measured with a 70 mm x 70 mm (2.8 in x 2.8 in) ground plane Product Dimensions Self-adhesive backing 25.0 mm 4.0 mm (1.00 in) (0.20 in) 0.8 mm (0.03 in) 25.0 mm 2.5 mm (1.00 in) (0.10 in) 2.0 mm (0.08 in) Figure 1. 868-CPA Antenna Dimensions Ground Plane Ceramic patch antennas are directional in signal transmission and reception orthogonal to the surface plane of the antenna, and require a ground plane for proper operation. The larger the ground plane, the narrower the antenna signal beam, and generally, the better the VSWR performance of the antenna. Relatively smaller ground planes produce wider signal beams. Linx recommends the ground plane size shown in the Electrical Specifications table to achieve performance similar to that shown in this datasheet. 2