The present disclosure includes an embodiment of a miniaturized antenna system and methods for compact multi-band transmission and reception of radio signals in a high-frequency (HF) band. An embodiment of the antenna system may include a plurality of shortwave antennas arranged in an antenna cluster, one or more controllers, and one or more monitors. The embodiment of the antenna system may allow the antenna cluster to operate effectively without a plurality of switches over a plurality of HF band frequencies. An embodiment of the one or more controllers may include a frequency testing and acknowledgement circuit that may determine and confirm which frequencies are propagating. In an embodiment, the methods of operating the antenna system may include determining selected frequencies, selecting a shortwave antenna, switching between a transmitter and a receiver, transmitting a radio signal, receiving acknowledgement signals and configuring the antenna system in response to receiving the acknowledgement signals.

An antenna array for use in a passenger vehicle. Four of the roof support pillars are used as antenna elements. Each of the four pillars is electrically connected or coupled to one end of a corresponding meanderline component. The other end of each meanderline is in turn coupled to a radio receiver, typically through a combining network.

An antenna array for use in a passenger vehicle. Four of the roof support pillars are used as antenna elements. Each of the four pillars is electrically connected or coupled to one end of a corresponding meanderline component. The other end of each meanderline is in turn coupled to a radio receiver, typically through a combining network.

An access system for a vehicle is provided. The access system includes antennas and an access module. The antennas are configured to each receive a signal transmitted from a portable access device to the vehicle. The signal is transmitted on a 2.4 gigahertz frequency. The access module is configured to: downconvert the received signal to generate an in-phase signal and a quadrature phase signal; perform carrier phase based ranging including implementing a music algorithm to (i) determine a distance between the portable access device and the vehicle, and (ii) determine angles of arrival of the received signal as received at the antennas; determine a location of the portable access device relative to the vehicle based on the distance and the angles of arrival; and permit access to the vehicle based on the location.

A communications backpack is disclosed. In one embodiment, the communications backpack includes a backpack; a Radio Area Network (RAN) device in mechanical communication with the backpack; a mini-server in mechanical communication with the backpack and in electrical communication with the RAN device; at least one hot swappable battery in mechanical communication with the backpack and in electrical communication with the RAN device and the mini-server; at least two antennas, wherein the two antennas are stored in a first position alongside the backpack and are movable to a second position where the two antennas are coupled to the backpack and in electrical communication with the RAN device; and wherein the communications backpack provides a coverage area of up to 3 kilometers (km).

A radio and power pole that includes a pipe defining a longitudinal interior cavity for storing modular electronic equipment (e.g., radios) is described. The radio and power pole can also include mounting channels extending longitudinally proximate to an interior surface of the interior cavity of the pipe, a structural spine extending longitudinally through the interior cavity of the pipe, ribs spaced apart from one another proximate to the interior surface throughout the interior cavity of the pipe, doors for accessing the interior cavity of the pipe, and a vent trap. The radio and power pole can be configured as a direct bury radio and power pole (possibly including one or more vaults). A radio and power pole can include a precast pier connected to the pipe and configured to support the pipe when the pier is inserted into the ground. A radio and power pole can include a bench disposed about the pipe.

A radio and power pole that includes a pipe defining a longitudinal interior cavity for storing modular electronic equipment (e.g., radios) is described. The radio and power pole can also include mounting channels extending longitudinally proximate to an interior surface of the interior cavity of the pipe, a structural spine extending longitudinally through the interior cavity of the pipe, ribs spaced apart from one another proximate to the interior surface throughout the interior cavity of the pipe, doors for accessing the interior cavity of the pipe, and a vent trap. The radio and power pole can be configured as a direct bury radio and power pole (possibly including one or more vaults). A radio and power pole can include a precast pier connected to the pipe and configured to support the pipe when the pier is inserted into the ground. A radio and power pole can include a bench disposed about the pipe.

The present disclosure pertains to an antenna assembly configured to inconspicuously provide mobile communication in rugged or tactical environments. Some embodiments may include: a flexible conductor configured to receive and/or emit electromagnetic radiation; a printed circuit board (PCB) configured to match characteristic impedances; and a connector configured to mate with another connector associated with a radio or amplifier, the PCB being potentially disposed within an interior portion of the connector of the antenna assembly.

A circuit element mounting portion provided on a dielectric substrate is configured so as to mount a high-frequency integrated circuit element, and includes a ground land and a plurality of high-frequency signal lands. The dielectric substrate is provided with an antenna element including at least one radiation element. The dielectric substrate is provided with an exposed terminal portion including an exposed ground land and an exposed high-frequency signal land. The dielectric substrate is provided with a first transmission line connecting one high-frequency signal land of the circuit element mounting portion and the radiation element. Furthermore, a second transmission line connecting another high-frequency signal land of the circuit element mounting portion and the high-frequency signal land of the exposed terminal portion, and a ground conductor connecting the ground land of the circuit element mounting portion and the ground land of the exposed terminal portion are provided.

A circuit element mounting portion provided on a dielectric substrate is configured so as to mount a high-frequency integrated circuit element, and includes a ground land and a plurality of high-frequency signal lands. The dielectric substrate is provided with an antenna element including at least one radiation element. The dielectric substrate is provided with an exposed terminal portion including an exposed ground land and an exposed high-frequency signal land. The dielectric substrate is provided with a first transmission line connecting one high-frequency signal land of the circuit element mounting portion and the radiation element. Furthermore, a second transmission line connecting another high-frequency signal land of the circuit element mounting portion and the high-frequency signal land of the exposed terminal portion, and a ground conductor connecting the ground land of the circuit element mounting portion and the ground land of the exposed terminal portion are provided.