Abstract:
Aspects of the subject disclosure may include, for example, a method for receiving a request to steer wireless signals generated by a plurality of dielectric antennas, and adjusting, by the controller, a plurality of adjustable delays coupled to a transceiver to adjust an orientation of wireless signals received or generated by the plurality of dielectric antennas, each of the plurality of dielectric antennas comprising a feed point coupled to a different one of the plurality of adjustable delays, the transceiver facilitating reception or transmission of electromagnetic waves propagating via a different one of the feed points of the plurality of dielectric antennas along corresponding dielectric feedlines without an electrical return path. Other embodiments are disclosed.
Abstract:
Aspects of the subject disclosure may include, for example, antenna that includes a first plurality of antenna elements radially arranged in a first plane to wirelessly transmit first channel signals received from a guided wave communication system to a plurality of client devices via a first plurality of beams at a corresponding first plurality of angles. A second plurality of antenna elements are radially arranged in a second plane that is displaced a first distance from the first plane to wirelessly transmit second channel signals received from the guided wave communication system to the plurality of client devices via a second plurality of beams at a corresponding second plurality of angles that are angularly displaced from the first plurality of angles. Other embodiments are disclosed.
Abstract:
Ein Modenkonverter (30) für ein Füllstandsradar (12) umfasst eine Eingangsleitung (20) zum Einleiten eines Hochfrequenzsignals in den Modenkonverter; eine Helixstruktur (58), in die ein Leiter (46) der Eingangsleitung (20) hineinragt und die eine Mehrzahl von helixförmigen elektrischen Leitern (68) aufweist; und einen Hohlleiter (49), der die Heüxstruktur (58) umgibt. Die Helixstruktur (58) ist dazu ausgeführt, das Hochfrequenzsignal aus der Eingangsleitung (20) in einen H01 -Mode im Hohlleiter (49) umzuwandeln.
Abstract:
The invention relates to a method for conversion of waveguide modes from a mode of type TM 01 to mode of type TE 11 for transmission of power within the microwave range. The invention also relates to a mode-converting arrangement and an antenna arrangement with such a mode-converting arrangement. The mode-converting arrangement comprises an incoming waveguide (1) for reception of power of the type TM 01 , an outgoing waveguide (6) for outputting power of mode type TE 11 and a waveguide-mode-converting section (2-5) arranged between the incoming and outgoing waveguides. According to the invention, incoming power of mode type TM 01 is divided in an input section (2) between two or more waveguides with cross-sections in the shape of circle sectors. Thereafter, the divided power is phase-shifted by the waveguides in a subsequent phase-shift section (4) being designed with cross-sections that are essentially in the shape of circle sectors with different radii, after which the waveguides are changed into a common essentially circular waveguide (6) that emits an otugoing power of mode type TE 11 . By means of the invention, a relatively simple solution is produced, that can cope with high powers.
Abstract:
According to the present invention, the transmission of millimeter wave using a non-radiative dielectric wave guide accompanies significantly low conversion loss. Thus, the present invention makes it possible to convert TE mode wave to LSM mode wave, and vice versa, freely with almost the same output. Mode conversion as mentioned above is possible not only in a wave guide, but also in a micro strip and a non-radiative dielectric wave guide.
Abstract:
A non-reciprocal mode converting SIW includes a first straight SIW section, a second straight SIW section, and a curved SIW section coupling the first straight SIW section to the second straight SIW section. The curved SIW section included magnetic biasing at opposed corner regions. The magnetic biasing and a curvature of the curved SIW section causes: (i) a wave in a first transverse electric (TE) mode that propagates in a forward direction from the first straight section through the curved SIW section into the second straight SIW section to convert to a second TE mode, and (ii) a wave in the first TE mode that propagates in a reverse direction from the second straight SIW section through the curved SIW section into the first straight SIW section to maintain the first TE mode.
Abstract:
The present invention relates to a mode extractor for extracting a TM01 mode from an electromagnetic signal, comprising a first turnstile junction (510) and a second turnstile junction (520), each of the turnstile junctions having a first port (511, 521), four second ports of rectangular waveguide (512, 522) which are mutually orthogonal and orthogonal to the first port (511, 521), and a matching section (514, 524) provided at least partially in a center region (513, 523) of the respective turnstile junction, the center region (513, 523) being located at an intersection of the first port (511, 521) and the four second ports (512, 522), wherein the first turnstile junction (510) and the second turnstile junction (520) are arranged so that longitudinal axes of their first ports (511, 521) are aligned with each other and their first ports (511, 521) are facing in opposite directions, each of the second ports (512) of the first turnstile junction (510) is electromagnetically coupled to a corresponding one of the second ports (522) of the second turnstile junction (520), and a coaxial coupling device (540) is inserted into the matching section (514) of the first turnstile junction (510) so that a portion of the coaxial coupling device (540) extends into the first port (511) of the first turnstile junction (510). The mode extractor is compact and can be inserted between a conventional user-link feed chain and an antenna. The TM01 mode enables refined pointing performance.
Abstract:
A computer-implemented method of operating a wave guide emitting two or more modes of propagating waves for observation of a localized wave peak at a predetermined distance from an aperture end of the wave guide. Amplitude and/or phase shift settings are selected based at least in part on the predetermined distance from the aperture end of the wave guide. Two or more modes are excited via modal decomposition of a pulse in the wave guide, based at least in part on the selected amplitude and/or phase shift settings.
Abstract:
The technical features mentioned in the abstract do not include a reference sign between parentheses (PCT Rule 8.1(d)). A transformer system (300) comprises a transformer star winding (310) to be coupled to antenna system (330), and a transformer delta winding (320) disposed with the transformer star winding. The transformer star winding includes a set of star elements and the transformer delta winding includes a set of delta elements each being substantially perdendicularly disposed with a corresponding star element from the set of star elements.