HORN SECTORAL S-BAND ANTENNA

         Purpose

The S-band sectoral horn antenna with an asymmetrical radiation pattern is designed for receiving and transmitting linearly polarized signals in the 2300 - 2600 MHz frequency range in vertical or horizontal polarizations. The antenna is characterized by high directivity in the E-plane of the waveguide, low side lobe levels, and good matching with a coaxial feeder path with a 50 Ohm wave impedance.

         Design Features

 The antenna is made in the form of a pyramidal horn based on a 96 x 46 mm rectangular waveguide, for the manufacture of which an aluminum alloy was used. Elements of a coaxial-to-waveguide transition with an N-type female coaxial connector are mounted in the waveguide part of the horn.

        Main Antenna Parameters

- Operating frequency range                                                     2300 … 2600 MHz

- Directivity coefficient in the operating frequency range,

not less than:                                                                               14.0 dB                                                                                      

- Beamwidth in the operating frequency range in the E-plane

of the waveguide at minus 3 dB level, not more than:      20 deg.

- Beamwidth in the operating frequency range in the H-plane

of the waveguide at minus 3 dB level, not more than:      70 deg.

- VSWR at the coaxial connector in the operating frequency

range, not more than                                                                            1.35

-   Antenna dimensions                                               100 x 330 x 560 mm

- Antenna weight, not more than                                                          2.0 kg