Excitation and use of guided surface wave modes on lossy media

    公开(公告)号:NZ712566A

    公开(公告)日:2016-09-30

    申请号:NZ71256614

    申请日:2014-02-28

    Abstract: A method comprises arranging a plurality of charge terminals of a polyphase waveguide probe above a lossy conducting medium, where the plurality of charge terminals are coupled to an excitation source. The method also comprises exciting the plurality of charge terminals via the excitation source to generate electromagnetic fields that are substantially mode-matched to a surface wave mode of the lossy conducting medium. The method further comprises transmitting energy in a form of a guided surface wave along a surface of the lossy conducting medium by exciting the polyphase waveguide probe to generate the electromagnetic fields that are substantially mode-matched to the surface wave mode of the lossy conducting medium.

    GÉOLOCALISATION AVEC DES ONDES DE SURFACE GUIDÉES

    公开(公告)号:MA40502A

    公开(公告)日:2016-03-17

    申请号:MA40502

    申请日:2015-09-09

    Abstract: L'invention concerne divers modes de réalisation pour déterminer une position de navigation à l'aide d'ondes de surface guidées, lancées à partir de sondes de guide d'ondes du type ondes de surface guidées, au niveau de diverses stations terrestres. Une unité de navigation peut fixer sa position par détermination du temps de propagation des ondes de surface guidées, des stations terrestres à l'unité de navigation. Dans un autre mode de réalisation, l'unité de navigation peut également fixer sa position pa

    TRANSMISSION ET RÉCEPTION SIMULTANÉES D'ONDES DE SURFACE GUIDÉES

    公开(公告)号:MA40397A

    公开(公告)日:2016-03-17

    申请号:MA40397

    申请日:2015-09-10

    Abstract: L'invention concerne divers modes de réalisation d'un émetteur/récepteur d'ondes de surface guidées conçu pour transmettre une onde de surface guidée à une première fréquence, et pour recevoir des ondes de surface guidées à une seconde fréquence simultanément à l'émission des ondes de surface guidées à la première fréquence. Les divers modes de réalisation peuvent être conçus pour retransmettre la puissance reçue et l'appliquer à une charge électrique. Les divers modes de réalisation de l'émetteur/récepteur d'ondes de surface guidées peuvent également être conçus sous la forme d'un répéteur de modulation d'amplitude (am).

    SUPERPOSITION OF GUIDED SURFACE WAVES ON LOSSY MEDIA

    公开(公告)号:CA2960024A1

    公开(公告)日:2016-03-17

    申请号:CA2960024

    申请日:2015-09-10

    Abstract: Disclosed are various embodiments for superposition of guided surface wave launched along the surface of a lossy medium such as, e.g., a terrestrial medium by exciting a guided surface waveguide probe. In one example, among others, a system includes an array of guided surface waveguide probes configured to launch guided surface waves along a surface of a lossy conducting medium and an array control system configured to control operation of waveguide probes in the array via one or more feed networks. The array control circuit can control operation of the guided surface waveguide probes to maintain a predefined radiation pattern produced by the guided surface waves. In another example, a method includes providing voltage excitation to first and second guided surface waveguide probes to launch guided surface waves with the voltage excitation provided to the second guided surface waveguide probe delayed by a defined phase delay.

    GUIDED SURFACE WAVE POWERED SENSING DEVICES

    公开(公告)号:CA2960022A1

    公开(公告)日:2016-03-17

    申请号:CA2960022

    申请日:2015-09-10

    Abstract: Disclosed is a sensing device including a guided surface wave receive structure, a physical parameter sensor, and a radio frequency transmitter. The guided surface wave receive structure may be configured to obtain electrical energy from a guided surface wave traveling along a terrestrial medium. The physical parameter sensor may be coupled to the guided surface wave receive structure. The physical parameter sensor may also measure a physical parameter associated with a physical environment local to the physical parameter sensor. The radio frequency transmitter may be coupled to the guided surface wave receive structure and communicatively coupled to the physical parameter sensor. The radio frequency transmitter may also obtain a physical parameter measurement and transmit the physical parameter measurement over a wireless network.

    SUBSURFACE SENSING USING GUIDED SURFACE WAVE MODES ON LOSSY MEDIA

    公开(公告)号:CA2957597A1

    公开(公告)日:2016-03-17

    申请号:CA2957597

    申请日:2015-09-10

    Abstract: Disclosed are various systems and methods for remote surface sensing using guided surface wave modes on lossy media. One system, among others, comprises a guided surface waveguide probe configured to launch a guided surface wave along a surface of a lossy conducting medium, and a receiver configured to receive backscatter reflected by a remotely located subsurface object illuminated by the guided surface wave. One method, among others, includes launching a guided surface wave along a surface of a lossy conducting medium by exciting a charge terminal of a guided surface waveguide probe, and receiving backscatter reflected by a remotely located subsurface object illuminated by the guided surface wave.

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