WO2014020313A1 - Appareil à alimentation bi-gamme intégrée avec commutation de polarisation - Google Patents

Appareil à alimentation bi-gamme intégrée avec commutation de polarisation Download PDF

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Publication number
WO2014020313A1
WO2014020313A1 PCT/GB2013/051969 GB2013051969W WO2014020313A1 WO 2014020313 A1 WO2014020313 A1 WO 2014020313A1 GB 2013051969 W GB2013051969 W GB 2013051969W WO 2014020313 A1 WO2014020313 A1 WO 2014020313A1
Authority
WO
WIPO (PCT)
Prior art keywords
data signals
switching means
polarity
received
data
Prior art date
Application number
PCT/GB2013/051969
Other languages
English (en)
Inventor
Andrew Baird
Matthew Pike
Derek Grice
Original Assignee
Pro Brand International (Europe) Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pro Brand International (Europe) Limited filed Critical Pro Brand International (Europe) Limited
Publication of WO2014020313A1 publication Critical patent/WO2014020313A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
    • H01P1/161—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion sustaining two independent orthogonal modes, e.g. orthomode transducer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • H01Q5/55—Feeding or matching arrangements for broad-band or multi-band operation for horn or waveguide antennas

Definitions

  • the invention which is the subj ect of this application is an improvement in the provision of apparatus for the reception and transmission of data signals over a known range of frequencies and typically via satellite data signal transmission systems.
  • the apparatus includes an antenna and at least one Low Noise Block (LNB) mounted on a boom arm with respect to the antenna.
  • LNB Low Noise Block
  • a feed assembly including a receiving horn, waveguide and processing means is provided to allow the received signals of acceptable frequencies to be passed, typically via a cable connection, to receiving apparatus at which the data can be further processed and decoded as required.
  • a further aim is to provide the apparatus in a form which allows the control of the polarities of both the receive and transmit signals which are to be used by the apparatus at any given time and to allow the same to be altered as and when required without the need for physical, on site intervention.
  • a yet further aim is to provide the apparatus in a form which allows the integration of the components to be achieved.
  • apparatus capable of receiving and transmitting data over known frequencies and in first and second polarities or polarity components, said apparatus including a feed assembly with outlet means for received data in first and second polarities or polarity components respectively and an outlet for transmitted data in one of said first and second polarities or polarity components, wherein switching means are provided to allow the selective reception and processing of received data in the first or second polarity or one of the polarity components and switching means to allow the transmission of data in the other of said first or second polarities or other of the polarity components at that time.
  • first and second polarities is intended to also include polarity components.
  • the switching means for the received data selects the polarity of the received signals which is to be processed and, as a result of that decision, a signal is transmitted to the switching means for the transmitted data to make that switch to the other of the first or second polarities than that which is being received and processed.
  • the switching means for the received data is provided electrically or electronically and implemented on at least one Printed Circuit Board (PCB) .
  • PCB Printed Circuit Board
  • the switching means for the transmitted data includes a ferrite core and the switching between polarities is achieved by the sending of an appropriate DC signal to the switching means.
  • outlets for the received data are positioned on a portion of a feed assembly downstream from a broadband feed horn and a low frequency band polariser and upstream from the switching means for the transmitted data signals.
  • outlets for the received data follow first and second paths respectively, at least one of which, but typically both, include transmit data signal reject filters to reduce interference.
  • transmit data signal reject filters to reduce interference.
  • connections to a PCB via a microstrip at the end of each of the respective paths.
  • the data signals from both paths in both polarities is passed to LNA's and the switching means and the accepted polarity data signals from the switching means pass onwards further into an LNB.
  • the feed assembly downstream of the switching means for the transmitted data, includes a high frequency polariser and a waveguide connection to a transmitter.
  • the feed assembly and LNB are provided as an integral unit.
  • the transmitter is a separate unit connected mechanically to the end of the feed assembly.
  • the transmitter is provided as an integral part of the feed assembly and LNB.
  • an integral loop to allow the integration of the transmitter components as part of the PCB to which the outlets for the received data signal connect.
  • the apparatus includes a first probe to receive and/or transmit the data signals in the selected polarisations or polarity components at that time, and a second probe to search for other available data signals and detect the power level of the same.
  • the signal generated to change the condition of the switching means for the received data signals is generated upon the detection of data signals which can be received with a different frequency and/or polarisation and when the power level of the same reaches a predetermined level.
  • an apparatus for receiving and transmitting data signals over a known frequency band said apparatus including a feed assembly, an LNB and a transmitter, wherein received data in first and second polarities are passed to first switching means to select to process data signals from one of the first or second polarities and wherein switching means to select the polarity of the transmitted data signals are operated in response to the condition of the first switching means at that time.
  • the operation of the second switching means is to cause the polarity of accepted transmitted data to be the opposite polarity to that of the received data which is being processed at that time.
  • the transmitter, LNB and feed assembly are provided as an integral unit.
  • the received data signals in both polarities and the transmitted data signals in the selected polarity are passed to a common PCB to be processed appropriately.
  • transceiving apparatus said apparatus including a feed assembly, an LNB and a transmitter and wherein first and second probes are provided, a first probe to received and transmit data signals in a selected polarisation or polarity component and a second probe to detect other data signals which can be received at the location and upon detecting data signals with a different frequency and/or polarisation and/or polarisation component and with a power level which has reached a predetermined power level, a control signal may be transmitted to change the condition of the switching means to receive and process the data signals from the second probe.
  • the apparatus is mounted on a boom arm of an antenna as part of apparatus for the receipt of data signals carried by a satellite data transmission system.
  • a method of switching the operating condition of apparatus provided to receive and transmit data signals in first and second polarisations or polarity components; said method comprising the steps of; receiving data signals in one or both polarisations or polarity components and passing the same to first switching means via a feed assembly, controlling the switching means to accept data signals in one of the first or second polarisations or polarity components in response to a control signal and passing the data signals of the accepted polarisation or polarity component for processing and wherein, in response to the control of the first switching means to accept received data signal in one of the first or second polarisations or polarity components, a signal is sent to second switching means to cause the same to select to transmit data signals in the other of the first or second polarisations or polarity components.
  • the method includes the steps of operating the apparatus to receive and transmit data signals in a selected polarisation or polarity component and at the same time continuously or periodically detecting data signals which can be received at the location of the apparatus and, upon detection, determining whether the data signals have a different frequency and/or polarisation and/or polarisation component and determining whether the power level of the detected data signals are at or above a predetermined power level, and selectively changing the condition of the switching means to receive and process the said detected data signals.
  • the detection of the data signals is performed as the apparatus is moving and/or when the apparatus has been moved to a new geographical location.
  • the switching means for the received data and in turn the switching means for the transmitted data signals, are controlled, typically automatically, so as to allow the receipt and processing of the detected data signals in the appropriate polarity or polarity component.
  • FIGS. l a and b illustrate an elevation and end elevation of a feed assembly in accordance with one embodiment of the invention
  • FIGS. 2a and b illustrate views of feed paths for the received data signals in detail
  • Figure 3 illustrates the internal polarisation structures used in one embodiment of the feed assembly
  • FIG. 4 illustrates a first embodiment of a transceiver in accordance with the invention
  • Figure 5 illustrates a second embodiment of a transceiver in accordance with the invention
  • Figures 6-8 illustrate views of the feed assembly of the embodiment of Figure 5.
  • the apparatus of the invention in a first embodiment includes a feed assembly of the type shown in Figures l a and b and which includes a broadband feed or horn 2 leading along a passage 4 which, in turn, leads to first and second outlets 6, 8 for received data signals which pass the polariser 22.
  • data signals of a first polarity such as Left Hand Circular Polarity (LHCP) can pass to the outlet 6 and of a second polarity such as Right Hand Circular Polarity (RHCP) pass to the outlet 8.
  • LHCP Left Hand Circular Polarity
  • RHCP Right Hand Circular Polarity
  • the feed assembly includes a transmit portion 24 which includes a polariser switching means 26 as shown in Figure 3 in the form of a high frequency ferrite polariser which is located upstream of a high frequency transmit polariser and junction 28.
  • the end of the portion 24 is provided with a waveguide connection 30 which allows the same to be attached to a transmitter 32.
  • the data signals which pass into the first outlet 6 follow the path 9 and pass through filters 10 to remove unwanted transmit signals to an outlet 12 which leads to a PCB.
  • the second outlet 8 carries the second polarity signals along path 16 via the transmit rej ect filters 1 8 to an outlet 20 which leads to the same PCB.
  • received data signals of both polarities are passed to one or more PCB's and, at which stage, switching means determine which polarity of data signals are to be processed and hence which of the data signals from which of the outlets 12, 20 are to be used and further processed at that time.
  • the portion 4 includes a suitable polarisation structure 22 within the same which is upstream of the outlets 6,8 as shown in Figure 3.
  • FIG. 4 there is provided the feed assembly in conjunction with an LNB 38 as an integral unit.
  • a transmitter 32 is mechanically located to the rear of the feed assembly as shown and a cable feed 34 connects the same to the LNB.
  • Figure 4 also shows the provision of the PCB board 36 within the LNB 38 to which the outlets 12 and 20 for the received data signals are connected.
  • FIGs 5 -8 illustrate a further embodiment of the invention in which, rather than provide a separate transmitter unit 32 as shown in Figure 4, the transmission facility is integrated within the LNB, thereby providing an integrated transceiver unit.
  • the transmit data from the waveguide of the feed assembly is fed back via loop 40 which is located externally of the portion 24 to a location 42 at which a microstrip outlet is provided to allow the data signals to be passed to the PCB board 36 which is the same board as that to which the received data signals are passed via outlets 12, 20.
  • the PCB board 36 therefore includes the suitable conventional components to allow the transmission facility to be provided as well as the switching means and processing means for the received data signals.
  • the apparatus can include a first probe to receive and/or transmit the data signals in the selected polarisations or polarity components at that time, and a second probe to search for other available data signals and detect the power level of the same.
  • the signal generated to change the condition of the switching means for the received data signals may be selectively generated upon the detection of data signals which can be received with a different frequency and/or polarisation and when the power level of the same reaches a predetermined level so that the newly detected data signals are identified as being stronger and hence the apparatus can be changed in it's condition to receive the newly detected signals.
  • the change of the switching means for the received data signals occurs automatically.
  • the apparatus is moved from one location to anew location at which a different set of data signals is available at the new location and so the condition of the apparatus can be changed automatically for use at the new location.
  • the apparatus may be provided to be movable such as as part of a vehicle, aircraft or boat, and therefore the detection of new data signals can be performed continuously or periodically at different geographical locations so as to enable the best data signals to be received and used at each location.
  • apparatus which allows the switching of polarisations of both received and transmitted data which is to be processed by the apparatus, without the need for mechanical movement of components of the feed assembly and without the need for physical intervention at the location of the apparatus.
  • apparatus operating condition can be altered in response to a signal emitted to the same from a remote location and therefore allows the apparatus to be adapted to react to changes in load conditions of the data receiving and transmission service at given times and/or the adaptation of the apparatus following movement of the apparatus to geographical locations in which the operating conditions may differ.
  • the signal to alter the condition of the operation of the apparatus will cause the operation of first switching means to change the polarity of the received data signals which is to be processed thereafter.
  • a signal typically a change in DC polarity, is passed to the second switching means to cause the change in the polarity of the transmitted data.

Landscapes

  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

Cette invention concerne un appareil et un procédé de réception et de transmission de signaux de données du type pouvant être, par exemple, diffusés par des systèmes de transmission par satellite. Ledit appareil comprend un ensemble d'alimentation qui, selon un mode de réalisation, est doté de moyens de traitement intégrés pour les signaux de données reçus et transmis, une tête universelle et un émetteur. Ledit appareil comprend en outre des moyens de commutation permettant d'effectuer une sélection entre deux polarités ou composantes de polarité de traitement des signaux de données reçus. L'état des premiers moyens de commutation est mis en œuvre pour commander l'état des moyens de commutation pour la transmission des données, de telle manière que la polarité ou la composante de polarité des données transmises est l'autre desdites première ou seconde polarité ou composante de polarité par rapport à celle dans laquelle les signaux de données reçus sont traités.
PCT/GB2013/051969 2012-07-30 2013-07-24 Appareil à alimentation bi-gamme intégrée avec commutation de polarisation WO2014020313A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1213525.7 2012-07-30
GBGB1213525.7A GB201213525D0 (en) 2012-07-30 2012-07-30 Integrated dual band feed apparatus with polarisation switching

Publications (1)

Publication Number Publication Date
WO2014020313A1 true WO2014020313A1 (fr) 2014-02-06

Family

ID=46881371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2013/051969 WO2014020313A1 (fr) 2012-07-30 2013-07-24 Appareil à alimentation bi-gamme intégrée avec commutation de polarisation

Country Status (2)

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GB (1) GB201213525D0 (fr)
WO (1) WO2014020313A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122810A (en) 1988-08-24 1992-06-16 Racal-Mesl Limited Feed waveguide with ferrite rod polarizer and stepped dielectric support for matching
US20040036661A1 (en) * 2002-08-22 2004-02-26 Hanlin John Joseph Dual band satellite communications antenna feed
WO2006127610A2 (fr) * 2005-05-23 2006-11-30 General Dynamics Satcom Technologies, Inc. Antenne a polarisation circulaire tribande pour station terrestre de communications par satellite
WO2009110755A2 (fr) * 2008-03-05 2009-09-11 주식회사 인텔리안테크놀로지스 Émetteur-récepteur de signal multibande utilisant une antenne à réflecteur et une antenne à cornet
US20120013425A1 (en) 2009-11-06 2012-01-19 Viasat, Inc. Electromechanical polarization switch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122810A (en) 1988-08-24 1992-06-16 Racal-Mesl Limited Feed waveguide with ferrite rod polarizer and stepped dielectric support for matching
US20040036661A1 (en) * 2002-08-22 2004-02-26 Hanlin John Joseph Dual band satellite communications antenna feed
WO2006127610A2 (fr) * 2005-05-23 2006-11-30 General Dynamics Satcom Technologies, Inc. Antenne a polarisation circulaire tribande pour station terrestre de communications par satellite
WO2009110755A2 (fr) * 2008-03-05 2009-09-11 주식회사 인텔리안테크놀로지스 Émetteur-récepteur de signal multibande utilisant une antenne à réflecteur et une antenne à cornet
US20120013425A1 (en) 2009-11-06 2012-01-19 Viasat, Inc. Electromechanical polarization switch

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Publication number Publication date
GB201213525D0 (en) 2012-09-12

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