The IMST Antenna SENTIRE A-sR-1033 is an add-on feature (accessory) for the Developer Kit SENTIRE DK-sR-1030e. This product demonstrates the flexibility in changing antennas for the radar module to adopt customer requirements. The external patch antenna with circular polarization for one transmit and two receive antennas on a multilayer PCB has a feeding network on the backside of the PCB covered by a shielding cap. The antenna has three coaxial connectors “RCP-2.92 right angle jack” and can be directly connected with the radar module sR-1030e with male-male straight adapters SMA2.9.with one transmit and two receive antennas on a multilayer PCB has a feeding network on the backside of the PCB covered by a shielding cap. The antenna has three coaxial connectors “RCP-2.92 right angle jack” and can be directly connected with the SENTIRE Radar Module sR-1030e with male-male straight adapters SMA2.9.