Abstract: A modular wideband antenna includes a ground plane, a first antenna element and a second antenna element disposed on a first surface of a substrate, a first segment of the first antenna element extends parallel to a first segment of the second antenna element along the substrate and a second segment of the first element diverges from a second segment of the second antenna element along the substrate, the first antenna element having a first horizontal element electrically coupled to the second section of the first antenna element, and the second antenna element having a second horizontal element electrically coupled to the second section of the second antenna element, and a first wall and a second wall disposed on a second surface of the substrate, the first wall being capacitively coupled to the first antenna element and the second wall being electrically coupled to the second antenna element.

Abstract: An antenna system includes a composite antenna including a first antenna element disposed above a ground plane, the first antenna element being operatively coupled to a first signal source providing a first signal, the first antenna element being configured to radiate the first signal provided by the first signal source; and a second antenna element disposed above the first antenna element, the second antenna element being operatively coupled to a second signal source providing a second signal, the second antenna element being configured to radiate the second signal provided by the second signal source, the first signal and the second signal being adjusted to set a beamwidth and a directivity of a beam pattern of a combined beam radiated by the composite antenna.

Abstract: A modular wideband antenna includes a ground plane, first and second antenna elements disposed on a first surface of a substrate, a first portion of a two-layer feed balun disposed on the first surface of the substrate, and electrically coupled to the first and second antenna elements, and to the ground plane, a second portion of the two-layer feed balun disposed on a second surface of the substrate, the second portion of the two-layer feed balun being electrically coupled to a signal feed, and being capacitively coupled to the first portion of the two-layer feed balun, first and second coupling capacitances disposed on the second surface of the substrate, the first coupling capacitance being capacitively coupled to the first antenna element, and the second coupling capacitance being capacitively coupled to the second antenna element, and first and second grounding posts being electrically coupled to the first and second coupling capacitances.

Abstract: An antenna system includes a composite antenna including a first antenna element disposed above a ground plane, the first antenna element being operatively coupled to a first signal source providing a first signal, the first antenna element being configured to radiate the first signal provided by the first signal source; and a second antenna element disposed above the first antenna element, the second antenna element being operatively coupled to a second signal source providing a second signal, the second antenna element being configured to radiate the second signal provided by the second signal source, the first signal and the second signal being adjusted to set a beamwidth and a directivity of a beam pattern of a combined beam radiated by the composite antenna.

Abstract: An antenna of a communication device includes a first antenna element operatively coupled to a transmitter of the communication device, the first antenna element configured to radiate a first signal generated by the transmitter; a second antenna element operatively coupled to a receiver of the communication device, the second antenna element configured to receive signals; and at least one third antenna element operatively coupled to at least one first reactive load, the at least one third antenna element configured to radiate a second signal modified in accordance with the at least one first reactive load, the second signal being induced at the at least one third antenna element by the first signal, and the at least one first reactive load being configured to modify the second signal to destructively cancel with a third signal induced at the second antenna element by the first signal.

Abstract: A modular wideband antenna includes a ground plane, a first antenna element and a second antenna element disposed on a first surface of a substrate, a first segment of the first antenna element extends parallel to a first segment of the second antenna element along the substrate and a second segment of the first element diverges from a second segment of the second antenna element along the substrate, the first antenna element having a first horizontal element electrically coupled to the second section of the first antenna element, and the second antenna element having a second horizontal element electrically coupled to the second section of the second antenna element, and a first wall and a second wall disposed on a second surface of the substrate, the first wall being capacitively coupled to the first antenna element and the second wall being electrically coupled to the second antenna element.

Abstract: A modular wideband antenna includes a ground plane, first and second antenna elements disposed on a first surface of a substrate, a first portion of a two-layer feed balun disposed on the first surface of the substrate, and electrically coupled to the first and second antenna elements, and to the ground plane, a second portion of the two-layer feed balun disposed on a second surface of the substrate, the second portion of the two-layer feed balun being electrically coupled to a signal feed, and being capacitively coupled to the first portion of the two-layer feed balun, first and second coupling capacitances disposed on the second surface of the substrate, the first coupling capacitance being capacitively coupled to the first antenna element, and the second coupling capacitance being capacitively coupled to the second antenna element, and first and second grounding posts being electrically coupled to the first and second coupling capacitances.

Abstract: A receiver and a receiving method of the receiver such that monolithic integration of multiple receiving channels can be implemented. The receiver includes a zero intermediate frequency channel, performing in-phase/quadrature (IQ) down conversion on a radio frequency signal at a first frequency band using a frequency division or frequency multiplication signal of a first signal, and a superheterodyne channel, performing down conversion on a radio frequency signal at a second frequency band using the frequency division or frequency multiplication signal of the first signal, where the first frequency band is different from the second frequency band. The zero intermediate frequency channel and the superheterodyne channel use a same oscillation signal or a same frequency division or frequency multiplication signal of the oscillation signal, thereby monolithic integration of multiple receiving channels can be implemented.

Abstract: A receiver and a receiving method of the receiver such that monolithic integration of multiple receiving channels can be implemented. The receiver includes a zero intermediate frequency channel, performing in-phase/quadrature (IQ) down conversion on a radio frequency signal at a first frequency band using a frequency division or frequency multiplication signal of a first signal, and a superheterodyne channel, performing down conversion on a radio frequency signal at a second frequency band using the frequency division or frequency multiplication signal of the first signal, where the first frequency band is different from the second frequency band. The zero intermediate frequency channel and the superheterodyne channel use a same oscillation signal or a same frequency division or frequency multiplication signal of the oscillation signal, thereby monolithic integration of multiple receiving channels can be implemented.

Abstract: An apparatus of a base station can include an antenna array comprising a plurality of antenna elements, and processing circuitry coupled to the antenna array. The processing circuitry is configured to perform operations including generating a plurality of sub-carrier signals using a carrier signal. A sub-carrier pattern formed from a subset of the plurality of sub-carrier signals is selected. Each signal in the subset of sub-carrier signals corresponds to a different antenna element in a subset of the plurality of antenna elements. The sub-carrier signals are transmitted using the subset of antenna elements. Each of the sub-carrier signals is transmitted with a transmission power corresponding to a transmission weight of a plurality of transmission weights. During the transmitting, the sub-carrier pattern is transitioned throughout the antenna array to adjust the transmission power for each of the sub-carrier signals in the sub-carrier pattern.

Abstract: A branch line coupler and active antenna system are provided. In an embodiment, the branch line coupler comprises four resonators. The four resonators are formed by a body and a grounded element. A resonator comprises a capacitor element and an inductor element. A first portion of the capacitor element comprises at least a portion of the body and a second portion comprises at least a portion of the grounded element. The inductor element is connected to the capacitor element in parallel. The inductor element comprises at least a portion of the body and extends to the grounded element. The first and second resonators are coupled by a first coupling, the second resonator and the third resonator are coupled by a second coupling, the third resonator and the fourth resonator are coupled by a second third coupling, and the fourth resonator and the first resonator are coupled by a fourth coupling.

Abstract: Using High-beam and low-beam transmission signals that have different antenna tilts, different beam-widths, and different polarizations than one another may provide performance advantages in wireless networks. The high-beam transmission signal and the low-beam transmission signal may have orthogonal polarizations. For example, the high-beam transmission signal and the low-beam transmission signal may be linearly polarized signals having different electromagnetic field (E-field) polarization angles with respect to the y-axis, e.g., +/?forty-five degrees with respect to a vertically polarized wave. As another example, the high-beam transmission signal may be a vertically polarized signal, and the low-beam transmission signal may be a horizontally polarized signal, or vice-versa. In addition to having orthogonal polarizations, the low-beam transmission signal may have a greater antenna beam down-tilt angle, and a wider beam-width than the high-beam transmission signal.

Abstract: A branch line coupler and active antenna system are provided. In an embodiment, the branch line coupler comprises four resonators. The four resonators are formed by a body and a grounded element. A resonator comprises a capacitor element and an inductor element. A first portion of the capacitor element comprises at least a portion of the body and a second portion comprises at least a portion of the grounded element. The inductor element is connected to the capacitor element in parallel. The inductor element comprises at least a portion of the body and extends to the grounded element. The first and second resonators are coupled by a first coupling, the second resonator and the third resonator are coupled by a second coupling, the third resonator and the fourth resonator are coupled by a second third coupling, and the fourth resonator and the first resonator are coupled by a fourth coupling.

Abstract: A method for operating a transmit-receive point (TRP) includes generating a different spatial domain to time domain transform (STT) symbol for each antenna element in an antenna array, and transmitting the STT symbols using the antenna array to sweep a beam along a first plane in the time domain.

Abstract: A method for operating a transmit-receive point (TRP) includes generating a different spatial domain to time domain transform (STT) symbol for each antenna element in an antenna array, and transmitting the STT symbols using the antenna array to sweep a beam along a first plane in the time domain.

Abstract: A receiver and a receiving method of the receiver such that monolithic integration of multiple receiving channels can be implemented. The receiver includes a zero intermediate frequency channel, performing in-phase/quadrature (IQ) down conversion on a radio frequency signal at a first frequency band using a frequency division or frequency multiplication signal of a first oscillation signal, and a superheterodyne channel, performing down conversion on a radio frequency signal at a second frequency band using the frequency division or frequency multiplication signal of the first oscillation signal, where the first frequency band is different from the second frequency band. The zero intermediate frequency channel and the superheterodyne channel use a same oscillation signal or a same frequency division or frequency multiplication signal of the oscillation signal, thereby monolithic integration of multiple receiving channels can be implemented.

Abstract: A method for operating a communications controller in a wireless communications system includes scheduling a pair of user equipments (UE) located in different ones of a plurality of split beams using an appropriate code pair that produces the plurality of split beams for multi-user multiple-input multiple output (MU-MIMO) mode transmission, and transmitting data packets to the pair of UEs in accordance with the appropriate code pair.

Abstract: Using High-beam and low-beam transmission signals that have different antenna tilts, different beam-widths, and different polarizations than one another may provide performance advantages in wireless networks. The high-beam transmission signal and the low-beam transmission signal may have orthogonal polarizations. For example, the high-beam transmission signal and the low-beam transmission signal may be linearly polarized signals having different electromagnetic field (E-field) polarization angles with respect to the y-axis, e.g., +/?forty-five degrees with respect to a vertically polarized wave. As another example, the high-beam transmission signal may be a vertically polarized signal, and the low-beam transmission signal may be a horizontally polarized signal, or vice-versa. In addition to having orthogonal polarizations, the low-beam transmission signal may have a greater antenna beam down-tilt angle, and a wider beam-width than the high-beam transmission signal.

Abstract: A method for operating a communications controller in a wireless communications system includes scheduling a pair of user equipments (UE) located in different ones of a plurality of split beams using an appropriate code pair that produces the plurality of split beams for multi-user multiple-input multiple output (MU-MIMO) mode transmission, and transmitting data packets to the pair of UEs in accordance with the appropriate code pair.

Abstract: Using High-beam and low-beam transmission signals that have different antenna tilts, different beam-widths, and different polarizations than one another may provide performance advantages in wireless networks. The high-beam transmission signal and the low-beam transmission signal may have orthogonal polarizations. For example, the high-beam transmission signal and the low-beam transmission signal may be linearly polarized signals having different electromagnetic field (E-field) polarization angles with respect to the y-axis, e.g., +/? forty-five degrees with respect to a vertically polarized wave. As another example, the high-beam transmission signal may be a vertically polarized signal, and the low-beam transmission signal may be a horizontally polarized signal, or vice-versa. In addition to having orthogonal polarizations, the low-beam transmission signal may have a greater antenna beam down-tilt angle, and a wider beam-width than the high-beam transmission signal.