Abstract: An antenna assembly mounted to an interior surface of a dielectric structure includes an antenna including a conductive patch defining an aperture, an upper surface, and a lower surface, where the upper surface of the conductive patch of the antenna faces the interior surface of the dielectric structure. The antenna assembly also includes a conductive enclosure mounted to the interior surface of the dielectric structure. The conductive enclosure includes a main body constructed at least in part of an electrically conductive material, where the main body of the conductive enclosure defines a cavity containing the antenna. The electrically conductive material of the conductive enclosure urges the electromagnetic radiation transmitted from the aperture of the conductive patch of the antenna to a space above the exterior surface of the dielectric structure.

Abstract: A radio antenna includes a folded monopole radiator, a high impedance buffer amplifier, and a grounding cable. The amplifier includes an input side, an output side, a two-pole filter, and a voltage regulator. The input side is electrically connected to the folded monopole radiator and maintains a consistent level of impedance, while the output side is electrically connected to a power source and maintains a consistent level of impedance. The two-pole filter attenuates frequencies, and the voltage regulator is configured to supply the buffer amplifier with a fixed DC bias voltage when power is received from the power source. The flexible grounding cable is directly wired to the amplifier, includes a metallic mounting end, and is positioned to maintain the consistent level of impedance at the folded monopole radiator.

Abstract: An antenna assembly mounted to an interior surface of a dielectric structure includes an antenna including a conductive patch defining an aperture, an upper surface, and a lower surface, where the upper surface of the conductive patch of the antenna faces the interior surface of the dielectric structure. The antenna assembly also includes a conductive enclosure mounted to the interior surface of the dielectric structure. The conductive enclosure includes a main body constructed at least in part of an electrically conductive material, where the main body of the conductive enclosure defines a cavity containing the antenna. The electrically conductive material of the conductive enclosure urges the electromagnetic radiation transmitted from the aperture of the conductive patch of the antenna to a space above the exterior surface of the dielectric structure.

Abstract: An antenna is disclosed. The antenna can include a coplanar antenna structure. The coplanar antenna structure can include a substrate and a radiating portion that is configured to emit electromagnetic radiation and is disposed over the substrate. The radiating portion defines a slot having a width to length ratio of at least approximately 0.4. The antenna also includes a scattering element disposed over the substrate and at least partially surrounds the radiating portion.

Abstract: An antenna is disclosed. The antenna can include a coplanar antenna structure. The coplanar antenna structure can include a substrate and a radiating portion that is configured to emit electromagnetic radiation and is disposed over the substrate. The radiating portion defines a slot having a width to length ratio of at least approximately 0.4. The antenna also includes a scattering element disposed over the substrate and at least partially surrounds the radiating portion.