The S2023R from STT-SystemTechnik GmbH is a Satellite Antenna with an uplink frequency range of 2025-2110 MHz and a downlink frequency range of 2200-2290 MHz. This right circularly polarized antenna provides hemispherical coverage and has a gain of 3 dBic (boresight). It has an HP bandwidth of 140 degrees and a VSWR of 1.5:1. The antenna has an impedance of 50 Ohms and power of 40 dBm CW. It weighs 140 g and measures 70 mm (length) and 50 mm (reflector diameter). The antenna is designed for use onboard small satellites. Its pattern shape has been optimized particularly for low earth orbit (LEO) missions with NADIR orientation.