The R&S®AC090 is a stationary directional antenna that can be adjusted in azimuth and elevation.
The reflector has a diameter of 0.9 m and – depending on the feed used – receives signals in the range 1 GHz to 18 GHz or 0.85 GHz to 26.5 GHz. The frequency range can be extended to up to 40 GHz by flange-connected options.
The R&S®AC090 is used for radiomonitoring tasks, for instance.
The following antenna feeds are available| Antenna Feeds | Frequency range | Polarization | |
| R&S®HL050S1 | Log-Periodic Antenna | 0.85 GHz to 26.5 GHz | linear |
| R&S®HL050S7 | Log-Periodic Antenna with preamplifier | 0.85 GHz to 26.5 GHz | linear |
| R&S®HL024S1 | Crossed Log-Periodic Antenna | 1 GHz to 18 GHz | H and V |
| R&S®HL024S2 | R&S®HL024A1 with passive polarization switching network | 1 GHz to 18 GHz | H, V, RHC or LHC |
| R&S®HL024S7 | R&S®HL024A1 with preamplifier | 1 GHz to 18 GHz | H or V |
| R&S®HL024S8 | R&S®HL024A1 with two preamplifiers | 1 GHz to 18 GHz | H and V |
| R&S®HL024S9 | R&S®HL024A1 with active polarization switching network | 1 GHz to 18 GHz | H, V, RHC or LHC |
| Options (retrofittable): | Frequency range | Polarization | |
| R&S®AC308R2 | 250 mm Reflector Antenna, 29 dBi to 33 dBi | 18 GHz to 26.5 GHz | H, V or 45° |
| R&S®AC308R3 | 250 mm Reflector Antenna, 33 dBi to 36 dBi | 26.5 GHz to 40 GHz | H, V or 45° |
