Abstract: A radar signal generator arrangement includes a reference signal source configured to provide a reference signal, a plurality of radar signal generators, and a scheduler. Each radar signal generator is configured to generate a respective radar signal based on the reference signal for transmission via a millimeter-wave link. Each radar signal generator is configured to align a phase of the respective radar signal with a phase of the reference signal. The scheduler is configured to provide for each radar signal generator a respective scheduling signal which indicates a time-frequency characteristic for the respective radar signal. Each radar signal generator is configured to generate the respective radar signal having the time-frequency characteristic indicated by the respective scheduling signal.

Abstract: Example microwave antenna probes, radio frequency arrangements, and methods for controlling an antenna patch connected to a microwave transmission line are disclosed. The antenna patch and the microwave transmission line are attached on a printed circuit board. An example microwave antenna probe includes a metal body, a waveguide, and a cavity. The metal body includes a bottom face and a top face opposing the bottom face. The waveguide is formed in the metal body. The cavity is formed at the bottom face of the metal body and is coupled with the waveguide and configured to enable microwave transition between the microwave transmission line and the waveguide. The microwave antenna probe is configured to disable the antenna patch and to redirect an antenna feeding signal from the microwave transmission line via the cavity to the waveguide when the antenna patch is contacted by the bottom face of the metal body.

Abstract: Example waveguide devices for guiding radio frequency signals are described. One example waveguide device includes an elongate flexible tubing having an elongate shape. The elongate flexible tubing includes an inner surface defining an elongate airtight cavity. The elongate airtight cavity extends from a first end of the elongate flexible tubing to a second end of the elongate flexible tubing. The first end is configured to couple the radio frequency signal into and/or out of the elongate airtight cavity. the inner surface of the elongate flexible tubing is configured to guide the radio frequency signal along the waveguide device. The second end is configured to couple the radio frequency signal out of and/or into the elongate airtight cavity. When the elongate airtight cavity is filled with a pressurized gaseous fluid, the elongate flexible tubing is configured to retain its elongate shape.

Abstract: A multi-layer waveguide device, a multi-layer waveguide arrangement, and a method for production thereof, wherein the multi-layer waveguide comprises at least three horizontally divided layers assembled into a multi-layer waveguide. The layers are at least a top layer, an intermediate layer, and a bottom layer, wherein each layer has through going holes extending through the entire layer. The holes are arranged with an offset to adjacent holes of adjoining layers creating a leak suppressing structure.

Abstract: A multi-layer waveguide device, a multi-layer waveguide arrangement, and a method for production thereof, wherein the multi-layer waveguide comprises at least three horizontally divided layers assembled into a multi-layer waveguide. The layers are at least a top layer, an intermediate layer, and a bottom layer, wherein each layer has through going holes extending through the entire layer. The holes are arranged with an offset to adjacent holes of adjoining layers creating a leak suppressing structure.

Abstract: A multiple wavelength selective switch has an optics assembly to receive a first input optical signal from a first ingress port and a second input optical signal from a second ingress port. A switch assembly has a single switching mechanism to direct the first input optical signal to the optics assembly as a first output optical signal and the second input optical signal to the optics assembly as a second output optical signal. The switch assembly directs the first output optical signal to a first egress port selected from the first set of egress ports and directs the second output optical signal to a second egress port selected from the second set egress ports. The first egress port and the second egress port have the same wavelength channel. The multiple wavelength selective switch supports an arbitrary number of wavelength channels that can be switched at the same time. Each switch assembly directs signals from a set of ingress ports to a set of egress ports sharing the same wavelength channel.