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The simplest RF direction finding system uses a directive antenna and a single receiver, and is known as the “directional antenna technique.
” The receiver displays the received signal intensity when the antenna is oriented in various directions. The direction of a transmitter is only determined by the signal’s strength.
The width of the antenna radiation pattern affects how accurate this method is. Although a narrow beam may increase the accuracy, it will also lengthen the time required to scan every direction. With intermittent transmission sources, the target could even be missed if the beam is sufficiently narrow. The precision of the bearing will decline with a broad beam.
The Global Direction finding antennas market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
For ground-based, mobile, marine, and aerial applications, the Kratos Spinning DF Antenna System is a small, lightweight, robust Direction Finding Antenna. With an extended band version that goes up to 40 GHz, the frequency range covered is 0.5 to 18 GHz. Slant linear polarised antennas enable the reception of vertical, horizontal, and circular signals.
The DF Antenna System offers versatility and adaptation to mission requirements by operating in full spin, variable spin, sector scan, or manual modes. The 0.5 to 2 GHz and 2 to 18 GHz log-periodic dipole arrays of the directional antenna assembly use a parabolic reflector to boost gain and reduce azimuth beamwidths, respectively.
Two horn antennas with a range of 18 to 26 GHz and 26 to 40 GHz are used in the extended band model. An additional method of signal detection is provided via an optional omnidirectional antenna that attaches on the top of the radome of the ground-based device.
With fewer moving components, the direct-drive pedestal design offers exceptional reliability. Smooth functioning is provided by the servo-based control system at speeds between 1 and 1200 degrees per second.
