Abstract: An apparatus for processing radio frequency signals, comprising a first phase shifting stage configured to receive an RF signal and to provide n1 many, with n1>=2, phase-shifted portions of the RF signal, and at least a second phase shifting stage configured to receive the n1 many phase-shifted portions of the RF signal and to provide n2 many, with n2>=n1, phase-shifted portions of the RF signal based on the received n1 many phase-shifted portions of the RF signal, wherein a phase shift applied by the second phase shifting stage to the n1 many phase-shifted portions of the RF signal is based on at least one phase shift applied by the first phase shifting stage to the n1 many phase-shifted portions of the RF signal with respect to the RF signal.

Abstract: A multiband antenna structure having an open rectangular box shape is arranged to provide identical electrical lengths for all of its radiating elements notwithstanding that the physical dimensions of portions of the multiband antenna may not be identical. Advantageously, such a multiband antenna may be interleaved with a 5G antenna array having unequal spacing between the 5G antennas or having an offset between at least one of the rows and the columns. This may be achieved by incorporating a dielectric material in at least one radiating element, by forming a radiating element with a serpentine shape, by having a radiating element follow a chicane, by incorporating a reflector of a 5G array, or by employing capacitive coupling.

Abstract: The invention relates to a multiband antenna, in particular for wireless networks, comprising: —a ground plane (7) extending along a longitudinal axis (A), —high band radiating elements (9a) set at the extremities of crosses, inclined at 45° with respect to the longitudinal axis (A), with an arm length being a dyadic fraction of a high-band wavelength (OHB), —low band radiating elements (9b) set at the extremities of crosses, inclined at 45° with respect to the longitudinal axis (A), with an arm length being a dyadic fraction of a low-band wavelength (OLB), characterized in that the high and low band radiating elements (9a, 9b) crosses are arranged along the longitudinal axis (A) of the metallic ground plane (7), in that the antenna comprises tubular separation walls (13) in electric contact with the ground plane (7), and in that the crosses are arranged in a pattern, wherein: —at least part of the high-band radiating elements (9a) are set inside the tubular separation walls (13), —the low-band radiating elem

Abstract: An active passive antenna arrangement as made up of an array of 5G antennas interleaved with multiband antenna structures that may be low band (LB) passive antennas. The 5G antenna array may be a mMIMO active array. The LB antennas are formed using conductive elements on thin supporting sheets that fit within the space between the 5G antennas. The substrates, and hence the radiating elements of the LB antennas, may be arranged so as to generally appear to form four sides of a rectangular box with the top and bottom surfaces removed. Thus, the LB antennas may be thought of as having been “slipped in” amongst a preexisting array of 5G antennas. Each LB antenna may surround one or more of the 5G antennas and 5G antennas of the array may also be external to an LB antenna.

Abstract: An antenna assembly and method are disclosed. The antenna assembly comprises: a printed circuit board assembly having a radiating element layer and a choke structure, the choke structure having a central conductor and a shielding structure, wherein the central conductor comprises at least a portion of the radiating element layer. By providing a printed circuit board assembly having a radiating element layer and a choke structure which utilises a portion of the radiating element layer, the manufacture of the radiating elements is simplified.

Abstract: In a first aspect of the present disclosure, an antenna includes: a ground plane; a central support extending from the ground plane, the central support having two feeding probes, each of the feeding probes having a first part and a second part, each of the first part and the second part being separated from one another and from the first and second parts of the other feeding probe; and four radiating arms, one radiating arm extending from each of the first and second parts of each feeding probe, wherein at least a portion of at least two of the radiating arms extends in directions different from orientations of their respective parts of the feeding probes.

Abstract: An antenna comprising: a longitudinal support member for supporting components of the antenna and a method of assembling such an antenna is disclosed. The components supported by the longitudinal member comprise: at least one signal feed probe configured to capacitively supply a signal to a corresponding at least one radiating patch; the at least one radiating patch mounted to at least partially wraparound the longitudinal support member; and signal supply circuitry for supplying a signal to the at least one signal feed. The signal supply circuitry is mounted on an outer surface of the inner longitudinal support member; and the longitudinal support member is formed of a conductive material and forms a ground plane for the antenna.

Abstract: In a first aspect of the present disclosure, an antenna includes: a ground plane; a central support extending from the ground plane, the central support having two feeding probes, each of the feeding probes having a first part and a second part, each of the first part and the second part being separated from one another and from the first and second parts of the other feeding probe; and four radiating arms, one radiating arm extending from each of the first and second parts of each feeding probe, wherein at least a portion of at least two of the radiating arms extends in directions different from orientations of their respective parts of the feeding probes.

Abstract: An apparatus including a first antenna array including first radiators arranged at a plurality of vertices defining a first shape; and a second antenna array including second radiators arranged at a plurality of vertices defining a second shape, wherein a first subset and a second subset of the first radiators are configured to operate at different polarizations, wherein a first subset and a second subset of the second radiators are configured to operate at different polarizations, and wherein the first shape and the second shape partially overlap, wherein a radiator of the first radiators is within an area defined by the second shape, and one or more other radiators of the first radiators are outside the area defined by the second shape.

Abstract: An active passive antenna arrangement as made up of an array of 5G antennas interleaved with multiband antenna structures that may be low band (LB) passive antennas. The 5G antenna array may be a mMIMO active array. The LB antennas are formed using conductive elements on thin supporting sheets that fit within the space between the 5G antennas. The substrates, and hence the radiating elements of the LB antennas, may be arranged so as to generally appear to form four sides of a rectangular box with the top and bottom surfaces removed. Thus, the LB antennas may be thought of as having been “slipped in” amongst a preexisting array of 5G antennas. Each LB antenna may surround one or more of the 5G antennas and 5G antennas of the array may also be external to an LB antenna.

Abstract: A multiband antenna structure having an open rectangular box shape is arranged to provide identical electrical lengths for all of its radiating elements notwithstanding that the physical dimensions of portions of the multiband antenna may not be identical. Advantageously, such a multiband antenna may be interleaved with a 5G antenna array having unequal spacing between the 5G antennas or having an offset between at least one of the rows and the columns. This may be achieved by incorporating a dielectric material in at least one radiating element, by forming a radiating element with a serpentine shape, by having a radiating element follow a chicane, by incorporating a reflector of a 5G array, or by employing capacitive coupling.

Abstract: Apparatus forming a phase-shifter is described. The apparatus comprises a strip line and a moving dielectric part. The moving dielectric part surrounds the strip line and is adapted to move only along a longitudinal axis of the strip line. Within this apparatus the size of the area of the strip line surrounded by the moving dielectric part is modified when the moving dielectric part moves along the longitudinal axis.

Abstract: A reconfigurable modular antenna system includes a first module comprising at least a first part of a first antenna system, and a second replaceable module comprising at least a second part of a first antenna system and a part of a second antenna system. An interconnect is disposed between the first module and the second replaceable module and couples the first part of the first antenna system to the second part of the first antenna system to form the first antenna system. The first antenna system is configured to operate in a first frequency band and the second antenna system is configured to operate in a second frequency band, different to the first frequency band.

Abstract: An antenna assembly and method are disclosed. The antenna assembly comprises: a printed circuit board assembly having a radiating element layer and a choke structure, the choke structure having a central conductor and a shielding structure, wherein the central conductor comprises at least a portion of the radiating element layer. By providing a printed circuit board assembly having a radiating element layer and a choke structure which utilises a portion of the radiating element layer, the manufacture of the radiating elements is simplified.

Abstract: Mounting device for mounting at least one active electronic module to a structure, wherein said mounting device comprises a non-planar mounting surface to which said electronic module can be mounted, and at least one heatsink to transfer thermal energy from said mounting device to a surrounding medium.

Abstract: The invention relates to a multiband antenna, in particular for wireless networks, comprising:—a ground plane (7) extending along a longitudinal axis (A),—high band radiating elements (9a) set at the extremities of crosses, inclined at 45° with respect to the longitudinal axis (A), with an arm length being a dyadic fraction of a high-band wavelength (OHB),—low band radiating elements (9b) set at the extremities of crosses, inclined at 45° with respect to the longitudinal axis (A), with an arm length being a dyadic fraction of a low-band wavelength (OLB), characterized in that the high and low band radiating elements (9a, 9b) crosses are arranged along the longitudinal axis (A) of the metallic ground plane (7), in that the antenna comprises tubular separation walls (13) in electric contact with the ground plane (7), and in that the crosses are arranged in a pattern, wherein:—at least part of the high-band radiating elements (9a) are set inside the tubular separation walls (13),—the low-band radiating elements

Abstract: A method for determining a distance to a passive intermodulation source in a device under test, the method comprising transmitting at least two signals with respective different frequencies to the device under test, receiving a complex response signal from the device under test, the complex response signal comprising a passive intermodulation of the at least two signals, generating an autocorrelation matrix using the complex response signal, the autocorrelation matrix representing power information of the complex response signal, decomposing the complex response signal, using the autocorrelation matrix, into a signal component part and a noise component part and determining a distance to the passive intermodulation source in the device under test using the noise and/or signal component part.

Abstract: An antenna comprising: a longitudinal support member for supporting components of the antenna and a method of assembling such an antenna is disclosed. The components supported by the longitudinal member comprise: at least one signal feed probe configured to capacitively supply a signal to a corresponding at least one radiating patch; the at least one radiating patch mounted to at least partially wraparound the longitudinal support member; and signal supply circuitry for supplying a signal to the at least one signal feed. The signal supply circuitry is mounted on an outer surface of the inner longitudinal support member; and the longitudinal support member is formed of a conductive material and forms a ground plane for the antenna.

Abstract: A reconfigurable modular antenna system includes a first module comprising at least a first part of a first antenna system, and a second replaceable module comprising at least a second part of a first antenna system and a part of a second antenna system. An interconnect is disposed between the first module and the second replaceable module and couples the first part of the first antenna system to the second part of the first antenna system to form the first antenna system. The first antenna system is configured to operate in a first frequency band and the second antenna system is configured to operate in a second frequency band, different to the first frequency band.

Abstract: A method for determining a distance to a passive intermodulation source in a device under test, the method comprising transmitting at least two signals with respective different frequencies to the device under test, receiving a complex response signal from the device under test, the complex response signal comprising a passive intermodulation of the at least two signals, generating an autocorrelation matrix using the complex response signal, the autocorrelation matrix representing power information of the complex response signal, decomposing the complex response signal, using the autocorrelation matrix, into a signal component part and a noise component part and determining a distance to the passive intermodulation source in the device under test using the noise and/or signal component part.