Antennas

• Frequency (ƒ) multiplied by wavelength (λ) for a radio wave equals the speed of light (c)
  • c = ƒ × λ  or  λ = c ÷ ƒ
  • λ (meters)  =  300 ÷ ƒ (MHz)
    
• So 60 meters = 5MHz

Course Guide Topics

1. Antenna Overview (1)
2. Antenna Overview (2)
3. Antenna Overview (3)
4. Frequency and Wavelength
5. Half Wave Antenna (1)
6. Half Wave Antenna (2)
7. Half Wave Dipole
8. Half Wave Antenna (3)
9. End-Fed Half Wave Antenna (1)
10. End-Fed Half Wave Antenna (2)
11. Half Wave Antenna – Radiation Patterns (1)
12. Half Wave Antenna – Radiation Patterns (2)
13. Folded Dipole
14. Quarter Wave Ground Plane (1)
15. Quarter Wave Ground Plane (2)
16. Trap Dipole (1)
17. Trap Dipole (2)
18. Yagi Antenna (1)
19. Yagi Antenna (2)
20. Yagi Antenna (3)
21. Yagi Antenna (4)
22. Gain and Yagi Antennas
23. Yagi Antenna (5)
24. Multiband Antenna
25. Effective Radiated Power
26. Polarisation
27. Capture Area
28. Antenna Length (1)
29. Antenna Length (2)
30. Parabolic Antenna
31. Horn Antennas