OTHER ANTENNAS

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HORIZONTAL/OMNI

Physically Small
Horizontally Polarized at horizon, Circularly overhead
Good bandwidth
Commonly used for low earth orbit VHF/UHF satellites

Discone

Vertical polarization
Omni-directional
Up to 500% bandwidth

Circular Omni

example: Quadrafilar Helix and Crossed Orthogonal Dipoles
Good local pattern
Small size
Narrow bandwidth

Patches

Small size
Low profile
Decent gain
Directional
Can be arrayed