A structure includes: a base that includes a first surface and a second surface parallel to a first plane, a third surface and a fourth surface parallel to a second plane orthogonal to the first plane, and a fifth surface and a sixth surface parallel to a third plane orthogonal to the first plane and the second plane; a first conductor that expands along the third plane and that extends along a second direction; a second conductor that expands along the fourth plane and that extends along the second direction; a third conductor that expands along the first plane and that is configured to capacitively connect the first conductor and the second conductor; and a fourth conductor that is configured to be electrically connected to the first conductor and the second conductor. The first conductor, the second conductor, and the third conductor are at least partially exposed to exterior space.

A door for a smart shipping container includes a door that has an outside skin strengthened by at least one hollow support beam defining an interior channel thereof. The door also includes embedded computing system disposed within the interior channel of the hollow support beam of the door. The embedded computing system includes a power source, memory, at least one processor, communications circuitry, an antenna and one or more sensors. Optionally, a window is defined in the hollow support beam so as to permit access by the antenna to an exterior of the door. For example, the window can be a three-sided window so as to permit access by the antenna to the exterior of the door irrespective of an opened or closed position of the door.

A door for a smart shipping container includes a door that has an outside skin strengthened by at least one hollow support beam defining an interior channel thereof. The door also includes embedded computing system disposed within the interior channel of the hollow support beam of the door. The embedded computing system includes a power source, memory, at least one processor, communications circuitry, an antenna and one or more sensors. Optionally, a window is defined in the hollow support beam so as to permit access by the antenna to an exterior of the door. For example, the window can be a three-sided window so as to permit access by the antenna to the exterior of the door irrespective of an opened or closed position of the door.

A transmitting circuit. In some embodiment, the transmitting circuit includes a slot antenna and an amplifier. The slot antenna may include a slot in a conductive sheet, and it may have a first resonant frequency, the first resonant frequency being within 20% of a slot frequency which is between a first frequency corresponding, in a first volume, to a wavelength twice the length of the slot, and a second frequency corresponding, in a second volume, to a wavelength twice the length of the slot. The amplifier may be connected to the slot through a connection including a conductive path, between the amplifier and the slot, having a length less than 0.2 times the length of the slot. The magnitude of the output impedance of the amplifier may be less than 0.25 times the magnitude of the impedance of the slot antenna at a first resonant frequency.

The present disclosure relates to an antenna mounting device for antenna assembly, where the antenna assembly comprises a base station antenna that extends longitudinally and a remote radio unit. The antenna mounting device comprises a first mounting unit, a second mounting unit and an optional third mounting unit. The first mounting unit is configured to pivotally connect a remote radio unit to a foundational component and provide the antenna assembly with a pivot point relative to the foundational component. The second mounting unit is configured to connect the base station antenna to a foundational component in the longitudinal extension direction of the base station antenna, below the first mounting unit and at a distance from the first mounting unit. The second mounting unit has an adjustable effective connection length between the base station antenna and foundational component, where the effective connection length determines the mechanical tilt angle of the antenna assembly. The present disclosure further comprises an antenna system of the antenna mounting device.

A device comprises an integrated circuit (IC) die, a substrate, a printed circuit board (PCB), an antenna, and a waveguide stub. The IC die is affixed to the substrate, which comprises a signal launch on a surface of the substrate that is configured to emit or receive a signal. The substrate and the antenna are affixed to the PCB, such that the signal launch and a waveguide opening of the antenna are aligned and comprise a signal channel. The waveguide stub is arranged as a boundary around the signal channel. In some implementations, the waveguide stub has a height of λ/4, where λ represents a wavelength of the signal. In some implementations, the antenna includes the waveguide stub; in others, the substrate includes the waveguide stub.

A device comprises an integrated circuit (IC) die, a substrate, a printed circuit board (PCB), an antenna, and a waveguide stub. The IC die is affixed to the substrate, which comprises a signal launch on a surface of the substrate that is configured to emit or receive a signal. The substrate and the antenna are affixed to the PCB, such that the signal launch and a waveguide opening of the antenna are aligned and comprise a signal channel. The waveguide stub is arranged as a boundary around the signal channel. In some implementations, the waveguide stub has a height of λ/4, where λ represents a wavelength of the signal. In some implementations, the antenna includes the waveguide stub; in others, the substrate includes the waveguide stub.

A semiconductor device may include an antenna array and a grounding assembly configured to at least partially electrically shield the antenna array. The grounding assembly may include a first grounding layer comprising a first plurality of openings and a second grounding layer comprising a second plurality of openings. The second grounding layer may at least partially occlude the first plurality of openings of the first grounding layer when viewed from above the antenna array.

The, present application provides a filtering circuit and a. TV antenna amplifier, the filtering circuit includes a switching module, and the switching module includes a control unit and at least two filtering units. The present application switchably render one of the at least two filtering units conductive through the control unit, and filter the signals of different frequencies in the input signals through the at least two filtering units, so that different filtering units can be switched according to the filtering requirements of the frequency signal in different regions, which makes it a wide application range.

According to an embodiment, an antenna includes a conductive antenna element, a voltage-bias conductor, and a polarization-compensation conductor. The conductive antenna element is configured to radiate a first signal having a first polarization, and the voltage-bias conductor is coupled to a side of the antenna element and is configured to radiate a second signal having a second polarization that is different from the first polarization. And the polarization-compensating conductor is coupled to an opposite side of the antenna element and is configured to radiate third a signal having a third polarization that is approximately the same as the second polarization and that destructively interferes with the second signal. Such an antenna can be configured to reduce cross-polarization of the signals that its antenna elements radiate.