EP4620113A1 - Appareil émetteur-récepteur portable amplifié - Google Patents

Appareil émetteur-récepteur portable amplifié

Info

Publication number
EP4620113A1
EP4620113A1 EP23813478.7A EP23813478A EP4620113A1 EP 4620113 A1 EP4620113 A1 EP 4620113A1 EP 23813478 A EP23813478 A EP 23813478A EP 4620113 A1 EP4620113 A1 EP 4620113A1
Authority
EP
European Patent Office
Prior art keywords
power
aimed
input
amplified
antenna
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23813478.7A
Other languages
German (de)
English (en)
Inventor
Enrico GHEZZO
Antonello Giovannelli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elettronica Marittima Srl
Original Assignee
Elettronica Marittima Srl
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 Elettronica Marittima Srl filed Critical Elettronica Marittima Srl
Publication of EP4620113A1 publication Critical patent/EP4620113A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B2001/3894—Waterproofing of transmission device

Definitions

  • the present invention relates to the technical field relating to transceiver antennas for professional use for SATCOM (satellite) communications.
  • the invention relates to a stand-alone amplified portable transceiver apparatus, comprising a double cross dipole antenna and a special sealed container, particularly suitable for use in complex and rapidly changing environmental and electromagnetic visibility conditions; situations which are encountered, for example, in the military field, during field operations characterised by high mobility of vehicles and people.
  • the apparatus proposed by the invention is particularly, though not exclusively, suitable for use in combination with portable or transportable transceiver radio apparatuses supplied to military personnel in the field and on rapidly moving vehicles.
  • antennas which can be kept separate from the respective transceiver apparatus, and can be quickly connected to the apparatus and made operational by the military use.
  • antennas of the same type which are mechanically adapted to be installed outside an operational vehicle, such as an armoured vehicle or other.
  • the power of the signal actually emitted by the antenna may depend on several factors: first of all, the power amplifiers of various transceivers, especially the portable ones, may deliver rather low power; furthermore, the actual power at the antenna input may be reduced by the length of the cable connecting it to the transceiver or any mechanical or electrical problems with the connectors, etc.
  • the main object of the invention is to propose a portable transceiver apparatus, aimed at being connected to the input and output of a transceiver apparatus, which is versatile and suitable for use in critical situations that require extreme performance, reliability and robustness, and assures high transmission power in any situation and is capable of maximising the sensitivity and quality in the signal-to-noise ratio in reception.
  • Another object of the invention is to propose a portable transceiver that can be made immediately operative in the field, and which does not require any user intervention, neither in assembling parts nor in setting up or calibration.
  • a further object of the invention is to propose a portable transceiver apparatus, which can be rapidly and removably installed on a military vehicle, even if it is not arranged for housing antennas in a stable manner, while maintaining its characteristics of power in transmission and sensitivity in reception.
  • the electronic driver circuit comprises: an power RF amplifier device for transmission; a low noise, high gain RF amplifier device for receiving; a first electrically controlled two-way switch, connected to the radiating element and having respective first and second switched outputs connected to an output of the power RF amplifier and to an input of the low noise RF amplifier, respectively; a second electrically controlled two-way switch connected to the connecting means and having respective first and second switched outputs connected to an input of the power RF amplifier and to an output of the low-noise RF amplifier, respectively.
  • RF power input detector means are also provided for detecting the presence of an input power signal on the antenna to control, accordingly, automatic switching of the antenna between receiving and transmitting modes.
  • FIG. 1 is a block diagram of the structure of a transceiver antenna, being part of the apparatus made according to the invention
  • FIG. 1 is a perspective, partially cutaway view of the apparatus
  • figure 3 is a side view of the apparatus of figure 2;
  • FIG. 4 is a different side view of the apparatus of figure 2.
  • the reference number 100 indicates an amplified portable transceiver apparatus as a whole made according to the present invention and designed to be used in SATCOM radio communications.
  • the apparatus 100 is intended to operate in association with an RF (radio frequency) transceiver apparatus, not shown.
  • the apparatus may be portable, for example of the type supplied to soldiers of special teams or more generally of infantry, to allow them to communicate with the base or with other comrades in arms during battlefield operations; it may also be a transceiver apparatus permanently installed on a vehicle, for land, sea or air operations, in any case wherever it is necessary to have highly reliable transmission and reception of communications.
  • the RF transceiver apparatus that can be associated with the apparatus 100 is generally capable of providing, at its connector, an output power RF signal to be fed into the antenna and of receiving, at the same connector, an input RF signal coming from the same apparatus 100.
  • the electrical connection between the latter and the RF apparatus is obtained by means of a suitable high-frequency cable with a predetermined impedance (usually 50 Ohm).
  • the apparatus 100 comprises an amplified antenna 101 aimed at operating alternatively according to a first receiving mode and according to a second transmitting mode, and comprises a radiating element 1 , intended for receiving and transmitting radio frequency signals, which in the example shown schematically in the figure comprises a double crossed dipole, aimed at producing an omnidirectional radiation pattern.
  • the amplified antenna 101 further comprises an electronic driver circuit 2 of the radiating element 1 , electrically connected to the latter, and signal connecting means 3, electrically connected to the driver circuit 2 in a manner that will be detailed below and intended to physically connect the amplified antenna 101 to the aforementioned RF transceiver apparatus.
  • the connecting means may be of any commercially available type suitable for radio frequency connections and may possibly be aimed at carrying the power supply of the amplified antenna 101 , as will be further detailed below.
  • the electronic driver circuit 2 comprises an power RF amplifier device 21 , having a circuit configuration known to the person skilled in the art and intended, when the amplified antenna 101 operates in the aforesaid second transmitting mode, to further amplify an power RF signal provided by the transceiver apparatus and carry it towards the radiating element 1 to be radiated.
  • the presence of the power amplifier 21 enables the amplified antenna 101 to emit a constant and verifiable minimum RF power, independently from the power of the RF signal emitted at the output of the transceiver apparatus and its quality.
  • the drive circuit 2 further comprises a low noise, high gain RF amplifier device 22, also having a known circuit configuration and intended, when the amplified antenna 101 operates in the aforementioned first receiving mode, to detect the RF signal captured by the radiating element and pre-amplify it, with low noise, so as to bring it to the input to the transceiver apparatus via the connecting means 3 having high signal-to-noise (S/N) ratio.
  • a low noise, high gain RF amplifier device 22 also having a known circuit configuration and intended, when the amplified antenna 101 operates in the aforementioned first receiving mode, to detect the RF signal captured by the radiating element and pre-amplify it, with low noise, so as to bring it to the input to the transceiver apparatus via the connecting means 3 having high signal-to-noise (S/N) ratio.
  • a first two-way switch 23 and a second two-way switch 24, of the type operable by a command provided by an electrical signal, are also included in the circuit 2 and are intended to switch the operating mode of the amplified antenna 101 alternately between the aforementioned first receiving mode and second transmitting mode.
  • the first switch 23 has its input 23a electrically connected to the radiating element 1 and its first switched output 23b and second switched output 23c connected to an output 21 b of the power RF amplifier 21 and to an input 22a of the low-noise RF amplifier 22, respectively.
  • Power input RF detector means 25 are also provided, interposed between the signal connecting means 3 and the aforementioned second switch 24, for detecting the presence of an input power signal to the amplified antenna 101 , provided by the aforementioned transceiver apparatus.
  • the detector means 25, the circuit configuration of which is also known to the skilled technician, are provided with a control output 25a, electrically connected to corresponding control inputs 23d, 24d of the first switch 23 and second switch 24 to control the automatic switching of the first switch 23 and second switch 24, depending on the presence of an input power signal on the line, so as to prepare the aforementioned amplified antenna 101 , alternatively, for the transmission and for the reception of RF signals.
  • the amplified antenna 101 further includes supply means 4, aimed at supplying power to the above-mentioned power amplifiers 21 and low-noise amplifiers 22.
  • supply means 4 aimed at supplying power to the above-mentioned power amplifiers 21 and low-noise amplifiers 22.
  • power is supplied to the amplified antenna 101 from outside, whereby the power supply means 4 simply comprise a suitable power connector, which may be physically independent from the above-described signal connector 3 or incorporated therein. In the latter case, the same cable is intended to carry both the RF signal connection and the power supply to the amplified antenna 101.
  • the power supply means 4 comprise a set of batteries and related driver circuitry, aimed at being recharged from outside by means of a suitable recharging connector, in a known manner.
  • the amplified antenna 101 further comprises a pair of electrically controlled bypass switches, first 5 and second 6, interposed between the radiating element 1 and the first two-way switch 23, and between the signal connector 3 and the second two-way switch 24, respectively.
  • the aforesaid bypass switches 5,6 have respective control inputs 5a, 6a connected to the above-described power connector 4 and, in the absence of supply voltage, they are aimed at directly connecting the radiating element 1 to the signal connector 3, thereby excluding the drive circuit 2.
  • the amplified antenna 101 can operate in an unamplified mode, which is useful, for example, when the RF power output from the transceiver apparatus is sufficient and reliable, and the received signal being detected is likewise sufficient and reliable.
  • bypass switches 5,6 are switched to a position enabling the aforementioned driver circuit 2 situated between the aforementioned radiating element 1 and signal connecting means 3, to allow the antenna 101 to operate in its preferred amplified antenna mode.
  • the amplified antenna 101 is advantageously enclosed within a closed, liquid-tight, box-shaped container 50 (see Figures 2, 3 and 4).
  • the latter has a square cross-section, with squared edges, and is dimensioned so as to contain the radiating element 1 of the amplified antenna 101 in a precise fit, with its crossed dipoles extending towards the squared edges.
  • the box-shaped container 50 comprises, in particular, a base 51 , side walls 52 and a cover 53, removable or hinged to the side walls 52, aimed at allowing access to the amplified antenna 101 for periodic inspection or maintenance operations.
  • the base 51 is composed of a plate 60, made of heat conducting material, for example aluminium or an alloy thereof, and comprising fins 63 aimed at improving the heat dissipation of the plate 60 on an outer face.
  • Coupling means 55 are attached to the outer face 62 in proximity to the aforementioned squared edges.
  • the coupling means are aimed at removably attaching the apparatus 100 to a vehicle or, for use in the field, to serve as ground support feet for the same apparatus 100.
  • the coupling means 55 include a plurality of permanent magnets, for example neodymium magnets, by means of which the apparatus 100 can be immediately and reliably attached to an external metal surface of a vehicle, for example an armoured vehicle.
  • coupling means 55 may comprise perforated brackets that allow them to be bolted to suitably provided threaded housings, or joints or other known coupling means to bars previously fitted to vehicles.
  • a housing 56 for a signal connector 3 is provided in a side wall 52 of the box-shaped housing 50.
  • Another housing may optionally be provided for a power connector.
  • a handle 57 is also fixed to a different side wall 52, aimed at allowing easy transport of the apparatus 100.
  • the electronic driver circuit 2 installed on a printed circuit board 2a, is conveniently housed at the bottom of the housing 40, at an inner face 61 of the base plate 60.
  • the printed circuit board 2a, or the power components of the circuit 2 are advantageously kept in contact with the base plate 60, so as to take advantage of its high thermal conductivity to dissipate the heat produced by the aforementioned power components and allow them to always operate at maximum performance while maintaining optimal operating temperatures.
  • the electronic driver circuit 2 is also electrically connected to the base plate 60, in such a way as to make the latter act as the ground plane of the amplified antenna 101.
  • the entire base plate is made articulated to the liquid-tight side walls 52 of the container 50 to allow easier access to the driver circuit 2.
  • the above described portable transceiver apparatus 100 allows the amplified antenna 101 contained therein to be advantageously operated in both receiving and transmitting modes, so as to always ensure high and constant transmission power and maximum sensitivity and an excellent S/N ratio in reception, regardless of the characteristics of the transceiver apparatus to which it is connected.
  • the amplified antenna 101 also allows for fully automatic operation as described above, without the necessity of user intervention in any of the intended modes of operation.
  • a further advantage of the apparatus 100 derives from the active function of the box-shaped container 50, both with respect to the dissipation of the heat produced by the power components of the driver circuit 2, and with respect to the possibility of operating simultaneously as a ground plane of the antenna 101 , and therefore as an active component thereof.
  • the compact configuration of the antenna which can be easily transported and quickly installed on a military vehicle also makes the apparatus 100 particularly useful in areas with a large vehicle fleet, and where it is advisable or necessary to have a limited number of apparatus 100 available.
  • an apparatus 100 may be kept available and immediately installed in a vehicle in which a high and reliable radio communication capability is required, at the time of its use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

L'appareil émetteur-récepteur portable amplifié, destiné à être utilisé dans des communications radio SATCOM, comprend une antenne amplifiée (101) et un contenant scellé en forme de boîte (50). L'antenne amplifiée (101) comprend un élément rayonnant (1), un circuit d'attaque électronique (2) de l'élément rayonnant (1), et un moyen de connexion de signal (3), visant à connecter physiquement l'appareil (101) à un appareil émetteur-récepteur. Le circuit d'attaque électronique (2) comprend : un dispositif amplificateur RF de puissance d'émission (21) ; un dispositif amplificateur RF à gain élevé et à faible bruit pour recevoir (22) ; un premier commutateur commandé bidirectionnel (23) et un second commutateur commandé bidirectionnel (24) pour commuter automatiquement l'antenne amplifiée (101) entre des modes d'émission et de réception. De plus, des détecteurs de puissance d'entrée RF (25) sont prévus pour détecter la présence d'un signal de puissance d'entrée audit appareil (100) afin de commander, en conséquence, la commutation automatique de l'antenne (101).
EP23813478.7A 2022-11-18 2023-11-17 Appareil émetteur-récepteur portable amplifié Pending EP4620113A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202200023799 2022-11-18
PCT/IB2023/061650 WO2024105634A1 (fr) 2022-11-18 2023-11-17 Appareil émetteur-récepteur portable amplifié

Publications (1)

Publication Number Publication Date
EP4620113A1 true EP4620113A1 (fr) 2025-09-24

Family

ID=85225266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23813478.7A Pending EP4620113A1 (fr) 2022-11-18 2023-11-17 Appareil émetteur-récepteur portable amplifié

Country Status (2)

Country Link
EP (1) EP4620113A1 (fr)
WO (1) WO2024105634A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190097671A1 (en) * 2017-09-26 2019-03-28 Apple Inc. Converged transmitter architecture with reduced power consumption
US10763899B1 (en) * 2019-09-26 2020-09-01 Apple Inc. Radio-frequency integrated circuit (RFIC) external front-end module
CN111726128B (zh) * 2020-06-22 2022-04-01 维沃移动通信有限公司 射频结构及电子设备

Also Published As

Publication number Publication date
WO2024105634A1 (fr) 2024-05-23

Similar Documents

Publication Publication Date Title
US7406298B2 (en) Wireless communication system
KR102233029B1 (ko) 안테나 장치
EP1460771B1 (fr) Arrangement d'antennes commutable
KR102094634B1 (ko) 휴대가 가능한 안티드론 ｒｆ교란장치
US6384765B1 (en) Repeater jamming transmitter and casing for the same
US7469131B2 (en) Terminal and associated transducer assembly and method for selectively transducing in at least two frequency bands
US7349718B2 (en) Portable telephone set
US20040248523A1 (en) Radio antenna apparatus provided with controller for controlling SAR and radio communication apparatus using the same radio antenna apparatus
US20160119796A1 (en) Active antenna array
JP2004028980A (ja) 位相制御式アンテナサブシステム
EP0916166A2 (fr) Appareil portatif a systeme d'antenne pour l'emission de signaux radioelectriques, support et procede de transmission des signaux entre l'appareil et le support
CN1152806A (zh) 天线耦合器
CA2519370A1 (fr) Systeme a diversite d'antenne destine a un telephone mobile
WO2012070242A1 (fr) Dispositif sans fil
EP4620113A1 (fr) Appareil émetteur-récepteur portable amplifié
JP7334654B2 (ja) 無線送電装置および無線電力伝送システム
WO2004084427A1 (fr) Antenne commutable
CN211879600U (zh) 卫通卫导设备
US12399065B2 (en) Wireless energy-harvesting sensor probe utilizing beam steering for in-oven power stealing
JP3477767B2 (ja) 受信機用電源供給装置及び携帯型受信機及び外部アンテナ装置
US7952517B2 (en) Method of transmitting a satellite positioning signal from an external antenna to an unexposed receiver, especially in mechanical vehicles
US20040185897A1 (en) Portable radio communication device and an antenna arrangement for a portable radio communication device
CN221961845U (zh) 一种便携式干扰机
KR20220069427A (ko) 휴대용 몰래 카메라 탐지장치
RU238631U1 (ru) Переносное устройство электронного противодействия беспилотным летательным аппаратам

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20250529

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)