Secondary antenna of T-CZ
General Description:
It is described two channels secondary antenna based on the technology of planar antenna array. Antenna utilizes 16 vertical elements, each of them contains 6 radiators building optimal diagram of vertical covering. In horizontal plane there are built antenna patterns Σ a Δ using phase distribution.bSeparate radiators in dipole form are fed using technology of air strip lines and their outputs are protected through separate radomes. Vertical antenna elements are fixed on balanced steel frame. Antenna reflector is created by metal grid placed at the level of dipole feeding. Mechanical position can be located on the top of primary antenna parabola using prepared fixing construction points.
T-CZ secondary antenna utilizes modern modular design and its implementation into any surveillance radar it is very simple.
| Main parameters of T-CZ secondary antenna | |
| Antenna type / Operation frequency | SSR/MSSR; 1030, 1090 MHz |
| Number of channels | 2 channels / Σ a Δ beams |
| Number of vertical elements / Number of radiators | 16 / 6 |
| SWR | 1,6 typical |
| Antenna gain | 19 dB |
| Horizontal width of antenna beam Σ (B-3dB) | 5,5° |
| Overall length / Weight | 3 000 mm / 180 kg |
Advantageous features of T-CZ secondary antenna
- Optimized modular antenna design
- High antenna gain despite using of small elements number
- Feeding of radiator modules through coupling with strip lines
- Suppression of side lobes in horizontal plane
- Antenna's small dimensions and weight
- Endurance against wind speed up to 240 km/hour
