Antenna Types and Applications

1
Antenna Types and Applications

• Justin Voogt
• Engineering Electromagnetics

2
Antenna Principles

• Radiation Resistance
• Antenna Pattern

• Directivity and Gain
• Bandwidth
• Signal-To-Noise Ratio

3
Antenna Types

• ½ Wave Dipole
• ¼ Wave Monopole

E
H
E
H
4
Antenna Types

• Loop Antennas
• Microstrip Antennas

5
Antenna Types

• Horn Antennas
• Helical
• Antennas

6
Antenna Applications

• U.S. Navys ELF system
• Operates at 76 Hz
• 80 miles of wire
• Penetrates to underwater subs
• One-way system

7
Antenna Applications

• VHF and UHF Antennas

UHF/VHF/FM Receiving Antenna
Transmitting Tower
8
Antenna Applications

• Wireless Communications

¼ Wave Whip
¼ Wave Helical
¼ Wave 2-in-1