Abstract: Disclosed is an antenna desensitization system and a method for designing an antenna desensitization system. The system and method are operative to provide a configuration and positioning of an antenna desensitizer element, with respect to an antenna, to overcome a frequency detuning experienced during operation of such antenna. The antenna desensitizer element comprises one or a combination of more than one decoupling components selected from the group of a frequency selective surface, an electromagnetic band gap structure, a ferromagnetic material, an anisotropic material, a nanomaterial, a dielectric material, and a conductive material. The system and method are particularly suitable for reducing the antenna frequency detuning effects caused by an external agent, such as a user or operator of a mobile electronics device, during operation of such device.

Abstract: Disclosed is an antenna capable of operating at more than one frequency band. The antenna comprises a first main helix antenna element and a second parasitic helix antenna element electromagnetically coupled to integrate a single radiofrequency connection structure operating in dual frequency bands. Furthermore, the antenna is configured to structurally combine a plurality of helix antenna elements to operate at multiple frequency bands having only one radiofrequency connector.

Abstract: A bowtie antenna is presented. The antenna includes a substrate with a metal layer. The bowtie-shaped dipole antenna is formed in the metal layer with two triangle elements and a gap between the two triangle elements. The bowtie-shaped antenna is shaped to receive signals in a lower portion of the UHF band. A pair of transmission lines is formed in the metal extending from the gap. At least one pair of tuning stubs is formed in the metal. The pair of tuning stubs extends from the transmission lines and is tuned to a frequency band that is different than the lower portion of the UHF band.

Abstract: A portable, battery-powered, wireless WiFi signal repeater is presented. It is placed in very close proximity to a WiFi-enabled device and is capable of improving the. communication link between the device and base station.

Abstract: A wideband patch antenna (90) is presented that comprises a patch (91) which is of pure metallic form or etched on a dielectric, that may be rectangular, elliptical, triangular, or any other shape. The patch is disposed a distance above a ground plane (92) and is driven by a helix-shaped or a three-dimensional probe (94) disposed between the patch and the ground plane. The probe is substantially normal to the ground plane. In addition, a plurality of such patch antennas may be combined to form antenna arrays or dual-band antenna structures.

Abstract: A quadrifilar helix antenna comprises a flexible substrate, four conductive elements with a feed network etched on a first portion of the flexible substrate, parasitic metallic lines etched on a second portion of the flexible substrate and a ground plane for the feed network. The resulting antenna structure is capable of efficiently receiving both satellite and terrestrial SDARS (Satellite digital audio radio service) signals.

Abstract: A through-glass antenna system (10) includes a patch antenna (14) mounted on a horizontal flat surface (51) of a three-dimensional conductive structure (16). The structure can serve as a ground plane for the patch antenna and further include bent and folded sides (52, 54, and 56) where one side includes a conductive surface (52) that extends below the horizontal flat surface and if necessary further bends at an approximate angle of a vehicle's front or rear window (30), a substantially planar external coupler (26) having an inside portion (63) and an edge portion (67) where the patch antenna is connected to the inside portion (63) of the external coupler, a substantially planar internal coupler (32) having an inside portion (7)3 and an edge portion (77), and a low noise amplifier (36) where the low noise amplifier is connected to the edge portion of the internal coupler.

Abstract: A wideband patch antenna is presented that comprises a patch which may be of pure metallic form or may be etched on a dielectric, that may be rectangular, elliptical, triangular, or any other geometric shape. The patch is disposed a distance above a ground plane and is driven by a helix-shaped or meandering probe disposed between the patch and the ground plane. The probe is normal to the ground plane. In addition, a plurality of such patch antennas may be combined to form antenna arrays or dual-band antenna structures.

Abstract: A quadrifilar helix antenna comprises a flexible substrate, four conductive elements with a feed network etched on a first portion of the flexible substrate, parasitic metallic lines etched on a second portion of the flexible substrate and a ground plane for the feed network. The resulting antenna structure is capable of efficiently receiving both satellite and terrestrial SDARS (Satellite digital audio radio service) signals.