RF feeder network for the Indian MST radar: Concept, realization and performance
Abstract
The Indian MST Radar is a phased array radar consisting of 32 transmitters feeding 32 x 32 (= 1024) crossed dual polarized 3-element Yagi antennas. The operating frequency is 53 MHz. the peak RF power is 2.5 MW and the average power is 60 kW. Pulse width varies from 1 microsecond to 32 microsecond. The array aperture power distribution follows a modified Taylor distribution for 20 dB side lobe level. The aperture power distribution of the planar array of 32 x 32 Yagi antennas is achieved in one direction by tapering the power output of each of the network is to connect each transmitter to a row of 32 Yagi antennas and taper the power input to each of the Yagi to get a modified Taylor distribution of the aperture power. The beam steering is done by sub-array phasing which is achieved at the transmitter input side using low power 8-bit phase shifters.
- Publication:
-
Solar-Terrestrial Energy Program: Proceedings of the 6th Workshop on Technical and Scientific Aspects of MST Radar
- Pub Date:
- August 1993
- Bibcode:
- 1993step.proc..365S
- Keywords:
-
- Antenna Arrays;
- Feeders;
- Meteorological Radar;
- Performance Tests;
- Phased Arrays;
- Radar Beams;
- Radar Networks;
- Radar Transmitters;
- Radio Frequencies;
- Steering;
- Yagi Antennas;
- Apertures;
- Cross Polarization;
- Mesosphere;
- Planar Structures;
- Pulse Duration;
- Sidelobes;
- Structural Design;
- Troposphere;
- Communications and Radar