An antenna system includes one or more conductive elements acting as radiating elements, and a multilevel or space-filling ground-plane, wherein said ground-plane has a particular geometry which affects the operating characteristics of the antenna. In one or more implementations, compact fastener can further include a pin extending from the actuator into a slot in the hook. A portion of the sub-collector lateral to the remainder of the HBT is rendered electrically insulative, preferably by an ion implant, to provide electrical isolation for the device and improve its planarity by avoiding etching through the sub-collector. A number of locations of fuel stations in proximity to the refueling location can be determined and presented to a user, for example, on a map showing the route. The closed configuration allowing at least a portion of the needle, including the needle tip, to extend below the bottom surface of the lower portion of the body. A removal opening is used to remove the coin wrapper sleeve from the sleeve container when it is full by swinging the carrying bracket to the side releasing the coin wrapper sleeve.