Abstract: A radio frequency coupling structure comprising (1) a substrate that forms a top side of a waveguide, (2) a first conductive layer disposed on a bottom side of the substrate, (3) a second conductive layer incorporated within the substrate, (4) a through via that is communicatively coupled to the first conductive layer and extends through an opening in the second conductive layer toward a top side of the substrate, and/or (5) a ring slot formed around the through via in the first conductive layer. Various other apparatuses, systems, and methods are also disclosed.

Abstract: An antenna comprising (1) a bottom RF guide plate rotatably coupled to a base via a first shaft controlled by an azimuth motor, (2) a top array plate rotatably coupled to the base via a second shaft controlled by an elevation motor, the top array plate and the bottom RF guide plate collectively forming a waveguide configured to direct RF signals in a specific direction, and (3) a choke structure coupled to the top array plate, the choke structure and the bottom RF guide plate collectively producing a RF choke that mitigates RF energy leakage or intrusion between the waveguide and an area outside the waveguide. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A radio unit that is configured to perform calibration of its antennas for beamforming is disclosed. The radio unit may comprise a combiner. The combiner may be configured to cause the antennas to transmit calibration signals. The combiner may cause the calibration signals to rotate to different phases. The different phases may cause non-coherent combining of noise of the calibration signals when the calibration signals are combined. The combiner may combine the rotated calibration signals and the noise may be cancelled by the radio unit. The combiner may calibrate the antennas based on the combined calibration signals.

Abstract: A steerable antenna comprising (1) a lower waveguide configured to direct radio frequency signals in a specific direction, (2) an upper waveguide positioned substantially parallel to the lower waveguide, wherein the upper waveguide is configured to direct the radio frequency signals in another direction substantially opposite to the specific direction, and (3) a plate coupled between the lower waveguide and the upper waveguide, wherein the plate includes one or more coupling elements that facilitate transferring the radio frequency signals between the lower waveguide to the upper waveguide. Various other apparatuses, systems, and methods are also disclosed.

Abstract: An antenna system comprising (1) a plurality of transceivers capable of being calibrated over the air to improve beamforming and (2) at least one controller communicatively coupled to the plurality of transceivers, wherein the controller (A) identifies a set of partially overlapping subgroups that include the plurality of transceivers, (B) obtains leakage measurements taken in connection with signals emitted by at least one transceiver included in each of the partially overlapping subgroups, (C) identifies, within the leakage measurements, a subset of leakage measurements taken in connection with an overlapping transceiver and multiple non-overlapping transceivers included in the set of partially overlapping subgroups, and (D) calibrates, based at least in part on the subset of leakage measurements, the plurality of transceivers with respect to at least one feature to improve beamforming. Various other apparatuses, systems, and methods are also disclosed.

Abstract: The disclosed radio frequency (RF) bandpass filter may include an RF transmission medium that defines (1) a plurality of cavities aligned parallel to each other along a major axis, where (a) each cavity includes planar surfaces that define (i) a first dimension aligned with the major axis and (ii) second and third dimensions aligned perpendicular to the major axis and each other, where the first dimension is shorter than the second and third dimensions and (b) each adjacent pair of cavities is coupled by an inter-cavity slot, (2) an RF inlet that couples a received RF signal to a first cavity at a first end of the plurality of cavities, and (3) an RF outlet that couples a filtered RF signal from a second cavity at a second end of the plurality of cavities externally to the filter. Various other filters and manufacturing methods thereof are also disclosed.

Abstract: The disclosed device may include a radio frequency (RF) component and a thermal management component establishing a thermal path with the RF component. The device may also include an RF filter electrically that is coupled to the RF component and arranged away from the thermal path. The device may further include a chassis for housing the RF component. The thermal management component and the RF filter may be positioned near an exterior of the chassis. Various other devices, apparatuses, and systems are also disclosed.

Abstract: A radio-frequency device comprising (1) an input resonator configured to receive an input signal, (2) an output resonator configured to provide an output signal, and (3) a plurality of signal paths coupled between the input resonator and the output resonator, wherein each signal path included the plurality of signal paths comprises a bandpass filter that (A) is at least partially composed of a ceramic material and (B) has a bandpass center frequency different from every other signal path included in the plurality of signal paths. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A radio-frequency device comprising (1) a ceramic component that forms a hole and (2) a connector coupled to the ceramic component, wherein the connector comprises an electrically conductive pin that at least partially extends into the hole formed in the ceramic component. Various other apparatuses, systems, and methods are also disclosed.

Abstract: Apparatuses, methods, and systems for a housing structure for maintaining alignment between ceramic sections of a bandpass filter are disclosed. One housing structure includes an L-shaped outer structure, a plurality of flexure portions, wherein at least one of flexure portion extends from an end portion of each of extended arms of the L-shaped outer structure, wherein each flexure portion extends inward perpendicular to each of the extended end portion, and a plurality of reference datums, wherein at least one reference datum is located between an L-joint of the L-shaped outer structure, and a one of the flexure portions. The housing structure operates to receive a plurality of sections of a waveguide filter, wherein each section includes a plurality of planar surfaces, wherein the datums and the flexure portions are operative to maintain alignment of the sections of the waveguide filter relative to each other.

Abstract: Apparatuses, methods, and systems for a housing structure for maintaining alignment between ceramic sections of a bandpass filter are disclosed. One housing structure includes an L-shaped outer structure, a plurality of flexure portions, wherein at least one of flexure portion extends from an end portion of each of extended arms of the L-shaped outer structure, wherein each flexure portion extends inward perpendicular to each of the extended end portion, and a plurality of reference datums, wherein at least one reference datum is located between an L-joint of the L-shaped outer structure, and a one of the flexure portions. The housing structure operates to receive a plurality of sections of a waveguide filter, wherein each section includes a plurality of planar surfaces, wherein the datums and the flexure portions are operative to maintain alignment of the sections of the waveguide filter relative to each other.

Abstract: The disclosed radio frequency (RF) bandpass filter may include an RF transmission medium that defines (1) a plurality of cavities aligned parallel to each other along a major axis, where (a) each cavity includes planar surfaces that define (i) a first dimension aligned with the major axis and (ii) second and third dimensions aligned perpendicular to the major axis and each other, where the first dimension is shorter than the second and third dimensions and (b) each adjacent pair of cavities is coupled by an inter-cavity slot, (2) an RF inlet that couples a received RF signal to a first cavity at a first end of the plurality of cavities, and (3) an RF outlet that couples a filtered RF signal from a second cavity at a second end of the plurality of cavities externally to the filter. Various other filters and manufacturing methods thereof are also disclosed.

Abstract: Apparatuses, methods, and systems for a multiband FDD radio configuration for reduction in transmit and receive path resources are disclosed. One apparatus includes an RF system-on-a-chip (RFSOC), a plurality of transmitter chains connected to a plurality of antennas, a plurality of receiver chains connected to the plurality of antennas, a plurality of transmit multiplexers, each of the plurality of transmit multiplexers receiving transmit signals from the RFSOC through a single transmit line and generating transmit signals for a sub-plurality of the transmitter chains through multiple transmit lines, wherein the transmit signals include multiple transmission frequency bands, and a plurality of receive multiplexers, each of the plurality of receive multiplexers receiving receive signals from a sub-plurality of the receiver chains through multiple receive lines and providing the receive signals to the RFSOC through a single receive line, wherein the receive signals include multiple receive frequency bands.

Abstract: Apparatuses, methods, and systems for a TDD (time division duplex) radio configuration for reduction in transmit and receive path resources are disclosed. One system includes an RF system on a chip (RFSOC) comprising baseband communication circuitry and frequency upconverters for transmit wireless signals and frequency downconverters for received wireless signals, a transmit switch receiving a plurality of transmit signals from the RFSOC through single transmit line, and operative to connect each of the plurality of transmit signals to a one of a plurality of antennas, one at a time, continuously over time, and a receive switch receiving a plurality of receive signals from the plurality of antennas, and operative to connect each of the plurality of receive signals to the RFSOC on a single receive line, one at a time, continuously over time, wherein each antenna of the plurality of antennas is either transmitting or receiving.

Abstract: Apparatuses, methods, and systems for surveying a site are disclosed. One method includes transmitting, by a ground unit, wireless signals while a directionally adjustable beam-forming antenna of the ground unit changes a beam direction of the transmission of the wireless signals to N beam directions, wherein the directionally adjustable beam-forming antenna includes a known motion, receiving and measuring, by an elevated unit, a magnitude and phase of the wireless signals transmitted by the ground unit through the N beam directions, determining N complex receive power representations wherein each complex receive power representation includes the measured magnitude and phase of the received wireless signals corresponding with each of the N beam directions, and determining a receive power summation comprising performing a complex summation of the N complex receive power representations.

Abstract: A radio frequency coupling structure comprising (1) a substrate that forms a top side of a waveguide, (2) a first conductive layer disposed on a bottom side of the substrate, (3) a second conductive layer incorporated within the substrate, (4) a through via that is communicatively coupled to the first conductive layer and extends through an opening in the second conductive layer toward a top side of the substrate, and/or (5) a ring slot formed around the through via in the first conductive layer. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A method includes receiving, through a vertical polarization port of an orthogonal-mode transducer (OMT), a vertical polarized signal from a vertical polarization diplexer, and receiving, through a horizontal polarization port of the OMT, a horizontal polarized signal from a horizontal polarization diplexer. The method also includes receiving, through a common port of the OMT, a circular polarized signal comprising the vertical and horizontal polarized signals. The common waveguide includes a septum polarizer configured to split or combine between the circular polarized signal, and the vertical polarized signal and the horizontal polarized signal.

Abstract: A port isolator for an antenna having a horizontal polarization input port and a vertical polarization input port includes a first signal coupler, a signal adjuster, and a second signal coupler. The first signal coupler is configured to sample a signal received on one of the input ports of the antenna. The signal adjuster is electrically coupled to the first signal coupler. The second signal coupler is electrically coupled to the signal adjuster and the other one of the input ports of the antenna. The signal adjuster is configured to adjust a phase and an amplitude of the sampled signal based on a leakage power and a leakage phase of a leakage signal from the input port receiving the signal to the other input port. The adjusted sampled signal substantially cancels out the leakage power and leakage phase from the input port receiving the signal to the other input port.

Abstract: A phase shifter includes an input port, a first coupling line connected to the input port, an output port, and a second coupling line connected to the output port and arranged substantially parallel to the first coupling line. The phase shifter also includes a substrate disposed between the first coupling line and the second coupling line, a first variable capacitor disposed on the first coupling line, and a second variable capacitor disposed on the second coupling line. Adjustment of one or more of the variable capacitors causes a phase shift between the input port and the output port.

Abstract: A method includes receiving, through a vertical polarization port of an orthogonal-mode transducer (OMT), a vertical polarized signal from a vertical polarization diplexer, and receiving, through a horizontal polarization port of the OMT, a horizontal polarized signal from a horizontal polarization diplexer. The method also includes receiving, through a common port of the OMT, a circular polarized signal comprising the vertical and horizontal polarized signals. The common waveguide includes a septum polarizer configured to split or combine between the circular polarized signal, and the vertical polarized signal and the horizontal polarized signal.