This book deals specifically with antennas used in radar installations. This chapter provides the basis for understanding the specific radar antennas. On completion you will be able to:

• Describe antenna directivity and power gain characteristics
• Describe the focusing action of a basic parabolic antenna
• Describe the basic radiation patters of the most common parabolic reflectors
• Describe the basic characters of horn radiators
• Describe the mono-pulse antenna concepts