Global navigation satellite system (GNSS) radio frequency signals broadcast from geo-stationary satellites 20,000 km above the earth when received by GNSS receivers are fundamentally weak. Accordingly, these GNSS receivers are vulnerable to accidental and deliberate interference from a range of synthetic sources as well as natural sources. Existing anti jamming technologies such as controlled reception pattern antennas, adaptive antennas, null-steering antennas, and beamforming antennas etc. are expensive and incompatible with many lower cost and footprint limited applications. However, in many applications the GNSS antenna is mounted upon a fixed or mobile element such that accidental and intentional jammers tend to be in the plane of the antenna or below it. Accordingly, there are presented designs and techniques to improve the anti-jamming or interference performance of GNSS receivers by further reducing the responsivity of the GNSS receiver to signals in-plane or below the plane of the antenna.

Disclosed herein are exemplary embodiments of omnidirectional antenna assemblies including broadband monopole antennas. In exemplary embodiments, the antenna assembly includes a broadband monopole antenna comprising stamped and folded elements. The antenna assembly is configured to be operable with high omnidirectional pattern conformity, e.g., at frequencies from about 617 megahertz (MHz) to about 7125 MHz or frequencies from about 698 megahertz (MHz) to about 7125 MHz, etc.

The subject matter disclosed here relates to a mounting system that facilitates mounting of an antenna structure or other communication equipment to a tower pole in a cellular communication system. In general, the mounting system includes a mounting bracket and a plurality of bands that encircle the tower pole and pull the mounting bracket toward the tower pole. The mounting bracket includes a mounting surface, two side flanges, and a top and bottom flange. In general, the mounting surface is configured to receive communication equipment and may be configured to attach to multiple different types of antenna structures from different manufacturers. The bracket may thus offer a “universal” type mount. The two side flanges of the mounting bracket extend from the mounting surface at angles that engage with the outer surface of the tower pole.

A multi-band antenna has a feed point, a grounding location, a first portion for low band operation, a second portion for low band operation, and one or more portions for high band operation. The ground reference of the feed point for the multi-band antenna is connected to a separate object that may provide a base for the multi-band antenna. The feed point of the multi-band antenna may be spaced above the base and have a space between the feed point and a location for the ground point. The low band portion has multiple resonances that are often odd multiples of the lowest resonant response. The portions that resonant most dominantly in the high band often have multiple resonances that are even multiples of the lowest high band resonance. The multi-band antenna has resonances spaced closely enough to appear to be a wide band antenna above the fundamental high band resonance.

In one embodiment of the present disclosure, an antenna assembly includes a patch antenna array including an upper patch antenna layer, a lower patch antenna layer, and a spacer therebetween, wherein the spacer includes a plurality of apertures defined by cell walls, wherein the each aperture aligns with an upper patch antenna element and a lower patent antenna element from the patch antenna array.

A radiating structure assembly system includes a movable conveyor that supports fixtures. Work stations are spaced about the conveyor such that the fixtures are moved sequentially to position the fixtures at the plurality of work stations. A first work station includes a loading assembly for loading the radiating elements on the fixtures. A second work station includes a first automated vertical assembly machine for mounting a first printed circuit board to the radiating element. A third work station includes a second automated vertical assembly machine for mounting a second printed circuit board to the radiating element to create a dipole assembly. A holding device is movable with the conveyor aligns and supports the first and second printed circuit boards relative to the radiating element. A fourth work station includes an unloading assembly for removing the dipole assembly from the conveyor.

An improved universal zero-moment support and adapter plate assembly is shown and described. In one embodiment, the assembly comprises an adjustable zero-moment support configured together with an off-axis adjustment. In other embodiments, an adapter and support assembly includes an external fitting, an adapter plate and an adjustable zero-moment support.

The present disclosure relates to a mounting assembly and the method of use thereof. The mounting assembly is configured to mount a plurality of objects on a single pole at a predetermined included angle and includes: a clamping mechanism, which fixes the mounting assembly on the pole by clamping the pole; an angle control mechanism, which has a polygonal configuration and controls the included angle between the plurality of objects through its polygonal configuration; and a mounting mechanism, which respectively mounts the plurality of objects by mounting each object among the plurality of objects in a manner where it corresponds to one edge among the plurality of edges of the angle control mechanism, thereby mounting the plurality of objects on the pole at a predetermined included angle. The mounting assembly according to the present disclosure is capable of mounting a plurality of objects on the pole at an accurate included angle in a controlled manner with the angle control mechanism thereof, and according to the mounting assembly of the present disclosure, make the disassembly and removal of the plurality of objects easy by shifting the operation space for fastening to the space between the plurality of objects.

A radio antenna interface for a portable radio is provided comprising a radio housing having a control top with a circular walled control top opening for receiving an antenna, the circular walled control top opening having an interior surface with a protruding bumper feature formed thereon. An antenna having has a base portion for insertion into the circular walled control top opening, the base portion has a ring feature forming a full circumference bump around the base portion. Once the antenna is assembled with the portable radio, the ring feature is located beneath and abuts with the protruding bumper to form the radio antenna interface. The radio antenna interface provides increased friction to minimize loosening of the antenna under extreme usage conditions.

The invention relates to a communication system (1), comprising at least one housing (2) having a first and an additional housing part (201, 202). In the housing (2), a circuit board (10) having electronic components (11) is arranged, and outside the housing (2), at least one antenna element is arranged. The invention is characterized in that an antenna support (7) that is connectable to the housing (2) is provided, wherein the at least one antenna element (14) is arranged on the surface and/or inside the antenna support (7).