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Annex 1 Mathematical models for radiodetermination radar systems antenna
patterns for use in interference analyses
1 Introduction
2 Mathematical formulae
2.1 Radar antenna with a narrow beamwidth
2.1.1 Background
2.1.2 Theoretical antenna equations
2.1.3 Procedure for mask determination
2.2 Radar antenna with a cosecant-squared elevation pattern
2.3 Theoretical diagrams and masks for different antenna radiation
patterns
3 Antenna pattern selection
4 Antenna pattern comparison
5 Approximating three-dimensional (3-D) patterns
6 Measured pattern examples
7 Patterns for phased array antennas