A passive antenna is designed to work without power supply and amplifying circuit. It receives weak signals and transmits to host directly. In open sky view areas, GPS signals are usually good enough for receivers' reception. Depending on usages and design of receiver products, passive antenna are also widely used in positioning and navigation equipment.
For your choice, determine that your GPS receiver uses a passive antenna first, i.e. no power supply to it, then check what connector type matches your receiver and finally determine your mounting option and cable length.