Abstract: A single piece of sheet metal antenna as well as a method and system for providing the antenna are provided. The single piece of sheet metal antenna includes a reflector/shield portion formed of a lower surface that extends in a horizontal direction and includes a through-hole, an antenna portion formed of an upper surface that extends in the horizontal direction and a vertically extending side that is joined between the upper surface and the lower surface, and a feed point formed of a through-hole flap attached and extending from the upper surface down and through the through-hole of the lower surface.

Abstract: An antenna assembly including a first conductive element including a first Q-value and a first impedance value, a second conductive element including a second Q-value and a second impedance value, and a current reversing element in communication with the first conductive element and the second conductive element.

Abstract: A single piece of sheet metal antenna as well as a method and system for providing the antenna are provided. The single piece of sheet metal antenna includes a reflector/shield portion formed of a lower surface that extends in a horizontal direction and includes a through-hole, an antenna portion formed of an upper surface that extends in the horizontal direction and a vertically extending side that is joined between the upper surface and the lower surface, and a feed point formed of a through-hole flap attached and extending from the upper surface down and through the through-hole of the lower surface.

Abstract: A system for network topology includes a first edge router node and a plurality of first sensors operatively connected to the first edge router node. A second edge router node is operatively connected to the first edge router node and to the plurality of first sensors. A plurality of second sensors are operatively connected to the second edge router node and to the first edge router node. The first and second edge router nodes are operatively connected to a cloud server through a respective cloud connection, so that in the event of one of the cloud connections becoming unavailable the plurality of first and second sensors in the system can remain operatively connected to the cloud server through the remaining cloud connection.

Abstract: An antenna assembly including a first conductive element including a first Q-value and a first impedance value, a second conductive element including a second Q-value and a second impedance value, and a current reversing element in communication with the first conductive element and the second conductive element.

Abstract: A system for network topology includes a first edge router node and a plurality of first sensors operatively connected to the first edge router node. A second edge router node is operatively connected to the first edge router node and to the plurality of first sensors. A plurality of second sensors are operatively connected to the second edge router node and to the first edge router node. The first and second edge router nodes are operatively connected to a cloud server through a respective cloud connection, so that in the event of one of the cloud connections becoming unavailable the plurality of first and second sensors in the system can remain operatively connected to the cloud server through the remaining cloud connection.

Abstract: A bandpass filter arrangement that includes a weakly coupled coaxial resonator to reduce the fluctuation in frequency response of the filter arrangement. A bandpass filter is coupled to the output of a low noise amplifier. The characteristic fluctuation in frequency response in the passband of the bandpass filter is reduced with a coaxial resonator that is disposed proximate the filter arrangement.

Abstract: A combination notch/bandpass filter uses first and second adjacently-located cavities in the conductive housing to respectively provide a tunable, first-stage notch filter and a second-stage bandpass filter. An opening in a wall provides a passage for energy from the first cavity to the second cavity. In the first cavity, a resonator is located adjacent the opening, along with a notch-filter tuning member having one end arranged opposite the resonator and spaced therefrom by a distance to permit the wide end of a coupler to be suspended therebetween. An elongated portion of the coupler carries filtered energy from the first cavity to the second cavity.

Abstract: A combined resonator-cavity filter includes a number of cavity structures designed for cooperative arrangement within a housing. The resonator cavities are constructed and arranged to pass energy in an assigned frequency band. The cavities include a first cavity structure having a corresponding cavity volume and constructed to provide a first Q, and a second cavity structure having its corresponding cavity volume and constructed to provide a second Q. The cavity volume corresponding to the second cavity structure is less than the cavity volume corresponding to the first cavity structure. Other aspects are directed to the arrangement and uses of sets of such cavity structures as part of a combined duplexer-receiver having the same housing.

Abstract: A connection arrangement, in particular an intermodulation-protected coaxial connection arrangement comprising a cable (1) and a cable connection means (2, 11), such as a coaxial connector (2), a lead-in unit (11) or the like, fixed to the cable. The connection arrangement comprises a conductive thick-walled connection piece (3) having an aperture (3a) forming a passage for the cable through the connection piece to the cable connection means (2, 11). The connection arrangement further comprises a crimp connection (5) or the like between the connection piece and the cable connection means, said crimp connection forming between the connection piece (3) and the cable connection means (2, 11) a first closed-circle sealing surface (5) around the aperture (3a) comprised by the connection piece (3).