GPS antennas for small unmanned aerial systems (SUAS)

The paper presents some of the current options in antenna designs for GPS on board small unmanned aerial systems. These include patch antennas, quadrifilar helix antennas, choke ring antennas, smart antennas, and synthetic aperture arrays. Of special interest is the measures in the antenna design to mitigate intentional jamming and other interference sources, whether intentional or unintentional. Optimal parameters in the antenna design are presented.