Devices
Linear antennas
Antenna for airfield observation Antenna for airfield observation

- Operating frequency: 36 GHz
- Aperture: 2000 mm x 200 mm
- Polarization: linear horizontal
- Beam width in azimuth plane: 0.27°
- Beam width in elevation plane: 2.4°
- Sidelobes (azim/elev): –21.6 dB / –20.5 dB
- Gain: 45 dB

Planar antennas
Planar antenna with cosecant type radiation pattern Planar antenna with cosecant type radiation pattern

- Operating frequency: 35.7 - 37.0 GHz
- Aperture: 1000 mm x 210 mm
- Polarization: linear vertical
- Beam width in azimuth plane: 0.5°
- Beam width in elevation plane: 43°
- Sidelobes (azimuth): –21 dB
- Gain: 37.5 dB
- Loss: 1.2 dB

Linear scanning antennas
Scanning antennas for automobile radars Scanning antennas for automobile radars

- Operating frequency: 76.5 GHz
- Aperture (¹4): 240 mm x 16 mm
- Polarization: linear horizontal
- Beam width in azimuth plane: 1°
- Beam width in elevation plane: 18°
- Sidelobes (azim/elev): –20 dB / –18 dB
- Sector of scanning in azimuth plane: 30°
- Step of scanning: 1°
- Frequency of scanning: 25 Hz (750°/sec)
- Mode of scanning: continuous
- Gain: 31.6 dB

Frequency of scanning in antennas can be significantly increased up to 200 Hz (200 full sector scans per second) for quick near region observation


Planar scanning antennas
Planar antenna for satellite TV reception Planar antenna for satellite TV reception (option of beam steering or scanning)


Periodical diffraction grating of holes in metal disc has low weight and is easy to manufacture. Corresponding antenna model is shown. Antenna operates on 12.5 GHz, has 3.3° x 3.3° main beam, and has an option of beam steering within ±30° sector. Initially this model was designed for high-resolution satellite radar system with synthesized aperture. With some modifications it can be used in scanning mode in helicopter landing radar system, marine mooring system and others

Back...

 

  
 
Copyringht © 2011 IRE. All Right Reserved