Abstract: Provided are examples of circularly polarized omni-directional antennas which contain an equal number of driven radiators and parasitic radiators spaced radially around a central axis which in which the driven elements are fed from a central feed system. This type of antenna allows for a compact size with higher axial ratio than other designs. In one aspect, an antenna comprises 2 or more elements shaped as a single curve in a cylindrical structure. In another aspect, the antenna may take on an angular form such as a square or a hexagon in which the elements may contain multiple angles. The antenna may be contained within a non-conductive enclosure and may contain a transmission line such as a coaxial cable.

Abstract: Circularly polarized directional antennas and methods of fabrication are provided. An antenna comprises conductive elements above a conductive reflector. The conducting elements are spaced radially outward from the center axis. The elements may be spaced equidistantly about each other or may be spaced between 10 and 80 degrees apart. The elements may be straight or curved. The elements may be a parallel to the reflector or may curve away or toward the reflector. The lengths and widths of each conductive element are adjusted to create or receive a circularly polarized wave of particular rotation based on the location in the element system. The elements are located within a printed circuit board that is bonded to a coaxial cable feedline placed above a metallic reflector. Each conducting element comprises a metallic wire.

Abstract: Compressed closed circuit circularly polarized (CLCP) omni-directional antennas and methods of fabrication are described. Such an antenna reduces the size of conventional circularly polarized antennas while also allowing increased axial ratio. An antenna comprises a plurality of conductive elements at an angle of between 5 and 52 degrees spaced radially around a multi-element feed system. The multi-element feed system may be made from a PCB and fed from a coaxial cable. The plurality of conductive elements may contain between 2 and 8 individual conductive elements. Each element in the plurality of conductive elements is a closed loop. The antenna may be covered by a protective housing which may also further reduce the size of the antenna.

Abstract: Provided are examples of removable circularly polarized antenna fitment and methods of fabrication. In one aspect, a fitment comprises a plurality of conductive elements spaced radially around a central point contained with a housing. The elements may have an included angle of between 8 and 71 degrees from horizontal. The plurality of conducting elements may be straight, bent, or curved and may be comprised of between 3 and 12 conductors. The fitment may contain a housing which is removable from a linear antenna.

Abstract: Provided are examples of circularly polarized omni-directional antennas which contain an equal number of driven radiators and parasitic radiators spaced radially around a central axis which in which the driven elements are fed from a central feed system. This type of antenna allows for a compact size with higher axial ratio than other designs. In one aspect, an antenna comprises 2 or more elements shaped as a single curve in a cylindrical structure. In another aspect, the antenna may take on an angular form such as a square or a hexagon in which the elements may contain multiple angles. The antenna may be contained within a non-conductive enclosure and may contain a transmission line such as a coaxial cable.

Abstract: Provided are examples of circularly polarized omni-directional antennas and methods of fabrication. In one aspect, an antenna comprises a cylindrical cover comprising a cap and a base including an inner cylinder portion having an interior surface and an exterior surface. The base and the cap form a cavity interior to the inner cylinder portion. A cable extends through the base such that a first end of the cable is located within the cavity and a second end of the cable is located external to the cover. The cable is aligned with a center axis of the cover. A plurality of conducting elements is spaced equidistantly about a circumference around the center axis of the cover. Each element of the plurality of conducting elements is curved about the circumference around the center axis and includes an angle of tilt from horizontal.

Abstract: Provided are examples of a radio controlled vehicle infrared combat system and methods of gameplay for radio controlled vehicles. In one aspect, the system is comprised of a 38 KHz IR transmitter, 38 KHz IR filtered receiver, an audio/visual display, and a processing unit. The system accepts signals from both the IR receiver and the vehicles control receiver and manipulates the control output to the vehicle to simulate damage. When firing, the IR transmitter is enabled and disabled. The processing unit disables the IR receiver when the IR transmitter is engaged to avoid hitting its own receiver. The processing unit has user-adjustable settings to allow for use in various types of RC vehicles including land vehicles, RC aircraft, and drones.

Abstract: Compressed closed circuit circularly polarized (CLCP) omni-directional antennas and methods of fabrication are described. Such an antenna reduces the size of conventional circularly polarized antennas while also allowing increased axial ratio. An antenna comprises a plurality of conductive elements at an angle of between 5 and 52 degrees spaced radially around a multi-element feed system. The multi-element feed system may be made from a PCB and fed from a coaxial cable. The plurality of conductive elements may contain between 2 and 8 individual conductive elements. Each element in the plurality of conductive elements is a closed loop. The antenna may be covered by a protective housing which may also further reduce the size of the antenna.

Abstract: Provided are examples of circularly polarized omni-directional antennas and methods of fabrication. In one aspect, an antenna comprises a cylindrical cover comprising a cap and a base including an inner cylinder portion having an interior surface and an exterior surface. The base and the cap form a cavity interior to the inner cylinder portion. A cable extends through the base such that a first end of the cable is located within the cavity and a second end of the cable is located external to the cover. The cable is aligned with a center axis of the cover. A plurality of conducting elements is spaced equidistantly about a circumference around the center axis of the cover. Each element of the plurality of conducting elements is curved about the circumference around the center axis and includes an angle of tilt from horizontal.

Abstract: Provided are examples of removable circularly polarized antenna fitment and methods of fabrication. In one aspect, a fitment comprises a plurality of conductive elements spaced radially around a central point contained with a housing. The elements may have an included angle of between 8 and 71 degrees from horizontal. The plurality of conducting elements may be straight, bent, or curved and may be comprised of between 3 and 12 conductors. The fitment may contain a housing which is removable from a linear antenna.

Abstract: Provided are examples of circularly polarized omni-directional antennas and methods of fabrication. In one aspect, an antenna comprises a central radiating element including a vertical center axis. The antenna further comprises a plurality of conducting elements surrounding the central radiating element. The plurality of conducting elements are curved about a circular circumference about the center axis and spaced equidistantly about the circular circumference. The central radiating element may be a sleeved dipole type. The plurality of conducting elements is configured to include an angle of tilt between 22 degrees and 68 degrees from horizontal. The plurality of conducting elements is located within a printed circuit board that is wrapped around the circumference around the center axis. Each conducting element of the plurality of conducting elements comprises a metallic wire.

Abstract: Provided are examples of a radio controlled vehicle infrared combat system and methods of gameplay for radio controlled vehicles. In one aspect, the system is comprised of a 38 KHz IR transmitter, 38 KHz IR filtered receiver, an audio/visual display, and a processing unit. The system accepts signals from both the IR receiver and the vehicles control receiver and manipulates the control output to the vehicle to simulate damage. When firing, the IR transmitter is enabled and disabled. The processing unit disables the IR receiver when the IR transmitter is engaged to avoid hitting its own receiver. The processing unit has user-adjustable settings to allow for use in various types of RC vehicles including land vehicles, RC aircraft, and drones.