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: An apparatus including a dipole antenna, configured for operation with a first polarization, the dipole antenna including a feed; and a pair of conductive elements fed by the feed, wherein the pair of conductive elements are grounded, and extend in parallel on opposing sides of the feed and then diverge.

Abstract: An apparatus for attaching a gimbal for an antenna to a structure, the apparatus including a pivot element for attachment to the structure, wherein the pivot element includes a first hole for rotatably attaching the gimbal to the pivot element using a first fastening element, wherein the pivot element includes a second hole, which is an oblong hole, for guiding a rotational movement of the gimbal within an angular range around an axis of rotation associated with the first hole, wherein a first surface of the pivot element, which faces the gimbal, when the gimbal is attached to the pivot element, is convex.

Abstract: In one embodiment, the decoupling apparatus for an antenna, includes a body and a cross-finger portion coupled to the body and configured to change a capacitance of the decoupling apparatus. The cross-finger portion includes a first plurality of fingers extending along a first direction; and a second plurality of fingers extending along the first direction. At least one of the second plurality of fingers is provided between adjacent two fingers of the first plurality of fingers, and at least one of the first plurality of fingers is provided between adjacent two fingers of the second plurality of fingers.

Abstract: In one embodiment, the decoupling apparatus includes a conductive body adapted to be arranged in the antenna to act as a radiation part of the antenna for transmission of electromagnetic waves with a frequency; and at least one slot formed on the conductive body, wherein the at least one slot comprises a dividing part extending to an edge of the conductive body to divide the edge and an intersecting part intersecting with the dividing part. With the radiation part including the decoupling apparatus, the different band radiation units do not need to be far away from each other to obtain good performance.

Abstract: In one embodiment, the antenna includes a reflector, a support plate for attaching the reflector to a structure, for example a mounting pole, a housing for a first radio device, wherein the housing is attached to the support plate, and a first supporting rod attached to the housing, wherein the first supporting rod is arranged outside of a virtual plane associated with the support plate and is configured to connect the housing to the structure.

Abstract: The present disclosure provides a radiator, an antenna, and a base station. The radiator comprises a conductor adapted to be arranged in an antenna for transmitting and/or receiving electromagnetic waves; and a pair of slots formed in the conductor and intersecting at a predetermined angle, each of the pair of slots comprising an elongated section at the middle thereof and widened sections at both ends thereof such that the conductor is divided by the pair of slots into: a continuous outer frame portion; and an enclosed portion surrounded by and connected to the continuous outer frame portion. Thus, the bandwidth of the patch antenna can be significantly broadened while maintaining the advantages of light weight, easy layout, wide range of applications, small size, low cost, etc.

Abstract: A contact module, a female connector and a male connector, wherein the female contact unit of the female connector includes signal contacts arranged in pairs and ground contacts corresponding to the signal contacts, a side surface of each signal contact facing the corresponding ground contact includes a signal contact portion in conductive contact with the signal contact portion of an adapter connector, a side surface of each ground contact facing the corresponding signal contact includes a shielding contact portion in electrical contact with the ground contact of the adapter connector, and a plugging space for plugging the contact module of the adapter connector is between the signal contacts and the ground contacts. The female connector enables the adapted contact unit to be clamped between the corresponding signal contact and the corresponding ground contact to realize corresponding conduction.

Abstract: According to an aspect, there is provided a passive antenna module for an active-passive antenna system. The passive antenna module includes a chassis for detachably mounting onto an active antenna module. The chassis includes an opening or a cavity for extending at least partially over the active antenna module when the chassis is mounted onto the active antenna module. The passive antenna module includes a ground plane layer arranged within or over said opening or cavity and fixed to the chassis. The ground plane layer includes a metallic or metallized grid. The passive antenna module includes a first antenna array including one or more first antenna elements arranged, in part, over said chassis and adjacent to said opening or cavity and, in part, over said opening or cavity. The chassis and the ground plane layer are adapted to act as ground planes for the first antenna array.

Abstract: Apparatus for dual-band antenna and communications tower comprising such apparatus are provided. The apparatus comprises a first part (202) comprising first and second propagation paths configured to selectively propagate signals of a first frequency with either a first polarization state or a second polarization state, a transition part (204) rotatable between first and second transition positions to selectively propagate signals of a second frequency along the second signal path with the first polarisation state when in the first transition position and with the second polarisation state when in the second transition position and a rotator part rotatable between first and second rotator positions. Wherein, the rotator part is configured to orientate the polarisation of signals in the second signal path in order to couple the second signal path to an interface, and allow propagation of signals in the first signal path in either the first or second rotator positions.

Abstract: The system includes an optical line terminal, a cloud server and an optical network terminal, wherein, the optical line terminal includes a part of management entities supported by the OMCI protocol, the part of management entities is associated with device information of the optical line terminal, the cloud server supports virtual OMCI, and the cloud server includes another part of management entities supported by the OMCI protocol. According to the scheme of the disclosure, by retaining a part of MEs supported by the OMCI protocol which is associated with the device information of OLT in OLT, and deploying another part of MEs supported by the OMCI protocol in the cloud server, it can reduce or avoid the dependency of the vOMCI on the OLT device while the vOMCI is realized to reduce the complexity of the OLT device and improve the flexibility of deploying the OMCI protocol stack of different service providers.

Abstract: A device includes a head having a material having a plurality of pores, wherein at least some of the pores from the plurality of pores each have a size that is smaller than a water molecule and larger than an air molecule such that the air molecules can pass through the pores and the water molecules are prevented from passing through the pores; and an elongated body extending from the head and having a thread on an outer surface thereof and having a conduit extending longitudinally through the elongated body to the head. The device is configured to fasten a first surface to a second surface using the thread of the elongated body.

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: A fastening device (10) for fastening an antenna (1) to a support (5) comprising: —a first element (10a) configured to be fixed on the support (5), —a second element (10b) configured for linking the first element (10a) to the antenna (1), —a first setting unit (16) for setting an angular orientation of the second element (10b) with respect to the first element (10a), wherein the first setting unit (16) comprises: —a first and a second pairs of holes (20a, 20b, 21a, 21b) made in one of the first or second elements (10a, 10b), the holes (20a, 20b, 21a, 21b) of a pair facing each other, —at least one through opening (18) having an arced oblong cross-section made in the other of the first or second element (10a, 10b), the at least one through opening (18) being configured to be placed between the two holes (20a, 20b) (21a, 21b) of a pair, —at least a first and a second axles (22), an axle (22) being configured to be placed through both the holes (20a, 20b) (21a, 21b) of a pair and a through opening (18), —first t

Abstract: A horn feed including: a central conduit extending axially in a first direction from a first portion that is configured to be relatively distal from a sub-reflector and including a first aperture and a second portion that is configured to be relatively proximal to the sub-reflector and including a second aperture; and an interface configured to connect to a dielectric support including an outer cylindrical dielectric wall of a substantially cylindrical shape and an inner cylindrical dielectric wall of a substantially cylindrical shape, wherein the central conduit, the outer cylindrical dielectric wall and the inner cylindrical dielectric wall are co-axial.

Abstract: The antenna includes a plurality of radiating units arranged by column and including a plurality of radiating bodies and a reflecting plate which is configured to reflect a portion of electromagnetic waves radiated by the plurality of radiating bodies, such that the electromagnetic waves are radiated in a radiation orientation; and a dielectric component arranged in the radiation orientation of at least one radiating unit of the plurality of radiating units and including an undulating portion spaced apart from the at least one radiating unit by a distance, wherein a first undulating structure is provided on a lower surface of the undulating portion at least facing the at least one radiating unit in a transverse direction, the transverse direction being vertical to the column and parallel to the reflecting plate.

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 multi-frequency folded lens antenna structure includes a stack, and the stack includes a polarization-dependent trans-reflector, a dielectric gap, and a multi-frequency twist-reflector; wherein the polarization-dependent trans-reflector is configured to transmit electromagnetic radiation of a first polarization incident from within the stack out of the stack and to reflect electromagnetic radiation of a second, different polarization incident within the stack towards the multi-frequency twist-reflector, and the multi-frequency twist-reflector is configured to selectively change a polarization of the reflected electromagnetic radiation from the second polarization to substantially the first polarization and to direct the electromagnetic radiation of substantially the first polarization, within the stack, towards the polarization-dependent trans-reflector for at least partial transmission out of the stack, wherein the multi-frequency twist-reflector is configured to selectively change the polarization for at

Abstract: Embodiments of the present disclosure relate to methods, apparatuses and computer program products for network optimization in a wireless network. A method includes determining a plurality of communication performance metrics associated with a plurality of access points; determining, based on the plurality of communication performance metrics, a plurality of communication performance problems to be solved for the plurality of access points; determining, from a predetermined set of optimization strategies, an optimization strategy for an access point of the plurality of access points based on the plurality of communication performance problems; and causing the access point to apply the determined optimization strategy.

Abstract: A pressurization dehydrator comprising an air compressor and a controller connected to enable automatic operation of the dehydrator. The dehydrator is implemented as a freestanding, bench-top unit having a housing that encloses a baffle plate on which the compressor is mounted. The bottom panel of the housing is affixed to the plate using dumpers inserted therebetween. The plate has legs protruding through the corresponding openings in the bottom panel for supporting the whole unit in the upright position on the bench top. Some or all of the legs may not have contact with edges of the openings. In operation, the legs provide an efficient mechanical pathway for transferring some vibrational energy of the plate to the bench top, thereby diverting said energy away from the housing. The circuit board of the controller is affixed to the housing, which beneficially reduces vibration levels transferred to the electronic components of the controller.