ITBO20120603A1 - NVIS VERTICAL ANTENNA RECORDED FOR SHORT-WAVE TACTICAL TRANSCEIVERS - Google Patents

NVIS VERTICAL ANTENNA RECORDED FOR SHORT-WAVE TACTICAL TRANSCEIVERS Download PDF

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Publication number
ITBO20120603A1
ITBO20120603A1 IT000603A ITBO20120603A ITBO20120603A1 IT BO20120603 A1 ITBO20120603 A1 IT BO20120603A1 IT 000603 A IT000603 A IT 000603A IT BO20120603 A ITBO20120603 A IT BO20120603A IT BO20120603 A1 ITBO20120603 A1 IT BO20120603A1
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IT
Italy
Prior art keywords
tactical
nvis
radiator
antenna
transceiver
Prior art date
Application number
IT000603A
Other languages
Italian (it)
Inventor
Clarbruno Vedruccio
Original Assignee
Clarbruno Vedruccio
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 Clarbruno Vedruccio filed Critical Clarbruno Vedruccio
Priority to IT000603A priority Critical patent/ITBO20120603A1/en
Publication of ITBO20120603A1 publication Critical patent/ITBO20120603A1/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/08Means for collapsing antennas or parts thereof
    • H01Q1/085Flexible aerials; Whip aerials with a resilient base
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/273Adaptation for carrying or wearing by persons or animals
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/32Adaptation for use in or on road or rail vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32Vertical arrangement of element
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Landscapes

  • Radar Systems Or Details Thereof (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Details Of Aerials (AREA)

Description

DESCRIZIONE DESCRIPTION

ANTENNA VERTICALE NVIS RACCORCIATA PER RICETRASMETTITORI TATTICI A ONDE CORTE NVIS VERTICAL ANTENNA SHORTWAVE FOR TACTICAL SHORT WAVE TRANSCEIVERS

Il presente trovato concerne un sistema di antenna verticale per ricetrasmissione nella banda delle frequenze comprese tra 2 e 60-80 MHz, adatta all’ impiego su mezzi mobili terrestri o marittimi. Il sistema di antenna à ̈ adatto per comunicazioni a breve e media distanza, utilizzando la propagazione in HF definita in letteratura NVIS, ed à ̈ costituito da un radiatore verticale ripiegato su se stesso e, caratterizzato da uno sviluppo autoportante su di una struttura a revolver in fibra di vetro e acciaio, alta circa 1 metro e che offre una ridottissima resistenza a venti anche molto forti. The present invention relates to a vertical antenna system for transceiving in the frequency band between 2 and 60-80 MHz, suitable for use on land or sea mobile vehicles. The antenna system is suitable for short and medium distance communications, using the HF propagation defined in the NVIS literature, and consists of a vertical radiator folded back on itself and characterized by a self-supporting development on a revolver structure in fiberglass and steel, about 1 meter high and offering very low resistance to even very strong winds.

L’antenna, che ha uno sviluppo lineare, a seconda delle possibili configurazioni compreso tra 6 e 7 metri, à ̈ destinata esclusivamente all’ impiego in abbinamento a ricetrasmettitori tattici a onde corte di tipo sia veicolare che spalleggiabile dotati di dispositivo di accordatore automatico, sia interno che esterno, ed à ̈ destinata principalmente ad impieghi su mezzi mobili campali corazzati e non, così come su unità navali veloci, al fine di consentire con la massima flessibilità di utilizzo, radiocomunicazioni a portata ottica in HF-VHF fino a 80 MHz o in modalità NVIS nelle sole bande delle onde corte. Allo stato odierno la tecnologia offre numerosi sistemi di antenne per telecomunicazioni professionali e militari da bordo di veicoli, ma la maggioranza di queste antenne sono costituite da stili componibili di lunghezza compresa tra 3 e 5-6 metri. Per l’utilizzo a bordo di un veicolo in movimento devono necessariamente essere incurvate sullo stesso e pure legate all estremo, con un cordino isolante, cosicché oscillano fortemente nelle curve o si impigliano nei rami degli alberi. Altri tipi di antenne più compatte utilizzano sistemi di accordo e di adattamento posti nel basamento, realizzati con trasformatori di impedenza su toroidi e avvolgimenti vari che inevitabilmente, per allagarne la banda di funzionamento, riducono efficienza del sistema ed inoltre con difficoltà possono essere accoppiati e cooperare ai complessi sistemi di accordo automatico basato su microprocessore di cui le moderne radio tattiche sono dotate e dei quali le stesse non possono solitamente fare a meno. L’idea a monte del presente trovato à ̈ stata quella di realizzare un dispositivo che fosse leggiero ed affidabile, il più corto possibile, dotato di elevata resistenza ed affidabilità anche nelle più severe condizioni atmosferiche e che fosse senza difficoltà alcuna accettato dall’accordatore automatico di qualunque ricetrasmettitore tattico moderno e presentasse la capacità di operare in modalità NV1S senza la necessità di essere incurvato sul tetto del veicolo, come normalmente à ̈ richiesto alle antenne comunemente adottate dalle Forze Armate. Il presente trovato, ha quindi lo scopo di snellire e compattare i sistemi di antenne HF destinati all’utilizzo su mezzi militari, evitando altresì eccessivi ingombri, specialmente evidenziati dagli operatori a bordo dei battelli d’assalto veloci impiegati dalle Forze Speciali o dalle Unità di soccorso. The antenna, which has a linear development, depending on the possible configurations between 6 and 7 meters, is intended exclusively for use in combination with tactical short-wave transceivers of both vehicular and shoulder type equipped with a tuner device automatic, both internal and external, and is mainly intended for use on armored and non-armored mobile vehicles, as well as on fast naval units, in order to allow with maximum flexibility of use, optical range radio communications in HF-VHF up to at 80 MHz or in NVIS mode in the short wave bands only. Today the technology offers numerous systems of professional and military telecommunication antennas for in-vehicle vehicles, but the majority of these antennas are made up of modular styles between 3 and 5-6 meters in length. For use on board a moving vehicle they must necessarily be bent over it and also tied at the end, with an insulating cord, so that they swing strongly in curves or become entangled in tree branches. Other types of more compact antennas use matching and adaptation systems placed in the base, made with impedance transformers on various toroids and windings which inevitably, by flooding the operating band, reduce the efficiency of the system and also with difficulty can be coupled and cooperate. to the complex microprocessor-based automatic tuning systems that modern tactical radios are equipped with and which they usually cannot do without. The upstream idea of the present invention was that of realizing a device that was light and reliable, as short as possible, with high resistance and reliability even in the most severe weather conditions and that was easily accepted by the automatic tuner of any modern tactical transceiver and had the ability to operate in NV1S mode without the need to be hunched over the roof of the vehicle, as is normally required for antennas commonly adopted by the Armed Forces. The present invention therefore has the purpose of streamlining and compacting the HF antenna systems intended for use on military vehicles, also avoiding excessive bulk, especially highlighted by the operators on board the fast assault boats used by the Special Forces or by the rescue units.

Il trovato può trovare quindi un largo impiego in abbinamento a qualunque ricetrasmettitore HF tattico, con applicazioni che vanno dall’istallazione su veicoli telonati, fuoristrada, mezzi blindati tipo VTLM, mezzi corazzati leggeri e pesanti, oppure a bordo di veloci unità navali, in virtù dell’elevata resistenza alle sollecitazioni quali vibrazioni, vento e altri agenti atmosferici. The invention can therefore be widely used in combination with any tactical HF transceiver, with applications ranging from installation on tarpaulin vehicles, off-road vehicles, armored vehicles type VTLM, light and heavy armored vehicles, or on board fast naval units, in thanks to the high resistance to stresses such as vibrations, wind and other atmospheric agents.

I vantaggi offerti complessivamente dal presente trovato non sono riscontrabili se non in parte e separatamente in alcune realizzazioni industriali molto complesse e costose e che difficilmente presentano una tale flessibilità di utilizzo. The advantages offered as a whole by the present invention cannot be found except partially and separately in some very complex and expensive industrial constructions which hardly have such flexibility of use.

Per la realizzazione pratica della struttura del presente trovato, così come raffigurato nei disegni allegati, à ̈ stato utilizzato uno stilo in acciaio ramato della lunghezza di un metro, dotato di mollone e basamento standardizzato similare a quello usato dalle antenne militari in HF. Un tamburo di materiale isolante con 5 o più fori ciechi perimetrali ed un foro centrale passante attraverso lo stilo, in tutto simile al tamburo di un revolver, agisce da supporto alle bacchette in fibra di vetro, anch’esse della stessa lunghezza dello stilo centrale e che sono inserite nei fori ciechi e fanno altresì da tutore, tramite l’inserimento in una termo guaina, ad un cavetto di acciaio o di altro materiale conduttore che à ̈ collegato elettricamente ad un estremo al tratto superiore del radiatore centrale, e che, nel montaggio, inverte il percorso lungo l’intero sviluppo delle colonnine che circondano l’elemento centrale e che rimane isolato alla fine del percorso. Due dischi, anch’essi di materiale isolante, fanno da supporto centrale e terminale dell’antenna e conferiscono alla stessa una grande robustezza ed una trascurabile resistenza ai venti. Tale configurazione riconducibile intuitivamente a quella di uno stilo ripiegato su se stesso, della lunghezza fisica di 6 o 7 m, proprio a causa della particolare struttura, esalta il diagramma di radiazione dell’antenna verso l’alto, rendendola quindi idonea a comunicazioni su salti quasi verticali nella ionosfera in modalità NVIS. La struttura completa dell’antenna montata à ̈ molto simile, come forma, a quella delle canne rotanti intorno al supporto delle mitragliatrici “Vulcan†. Le caratteristiche tecniche del trovato, secondo i suddetti scopi, sono chiaramente riscontrabili dalle rivendicazioni sotto riportate ed i vantaggi dello stesso risultano evidenti nella precedente descrizione dettagliata, fatta con riferimento al disegno allegato, che ne rappresentano una forma di realizzazione puramente esemplificativa, non limitativa, e in cui: For the practical realization of the structure of the present invention, as shown in the attached drawings, a copper-plated steel stylus of one meter length was used, equipped with a standardized spring and base similar to that used by military HF antennas. A drum of insulating material with 5 or more perimeter blind holes and a central hole passing through the stylus, very similar to the drum of a revolver, acts as a support for the fiberglass rods, also of the same length as the central stylus and which are inserted in the blind holes and also act as a brace, through the insertion in a thermo sheath, to a steel cable or other conductive material which is electrically connected at one end to the upper section of the central radiator, and which, during assembly, reverses the path along the entire development of the columns that surround the central element and which remains isolated at the end of the path. Two discs, also made of insulating material, act as central and terminal support of the antenna and give it great strength and negligible resistance to winds. This configuration, which can be intuitively traced back to that of a stylus folded back on itself, with a physical length of 6 or 7 m, precisely because of the particular structure, enhances the radiation pattern of the antenna towards the top, making it therefore suitable for communications on nearly vertical jumps in the ionosphere in NVIS mode. The complete structure of the mounted antenna is very similar in shape to that of the rotating barrels around the support of the â € œVulcanâ € machine guns. The technical characteristics of the invention, according to the aforementioned purposes, are clearly verifiable from the claims reported below and the advantages thereof are evident in the previous detailed description, made with reference to the attached drawing, which represent a purely exemplary, non-limiting embodiment thereof. and in which:

• Il disegno 1 illustra una vista montata del sistema meccanico completo del corpo dell’antenna (1), a cui sono collegati gli elementi dal.1 a 1.6 realizzati con bacchette di fibra di vetro che fanno da supporto al cavetto (-) in acciaio che le contorna; il cavetto à ̈ collegato elettricamente alla sua estremità alla parte superiore dello stiloradiatore (1). Sono inoltre evidenti il supporto base a revolver (2) e i supporti strutturali rispettivamente centrale (2.1) e terminale (2.2). Il supporto elastico (3) passa attraverso il basamento isolante e il disco standardizzato NATO (5) e termina nel morsetto di connessione (4) all’accordatore automatico del ricetrasmettitore. A â € ¢ Drawing 1 illustrates a mounted view of the complete mechanical system of the antenna body (1), to which elements from 1 to 1.6 are connected, made with fiberglass rods that support the cable (- ) in steel that surrounds them; the cable is electrically connected at its end to the upper part of the radiator (1). The basic revolver support (2) and the central (2.1) and terminal (2.2) structural supports are also evident. The elastic support (3) passes through the insulating base and the standardized NATO disc (5) and ends in the connection terminal (4) to the automatic tuner of the transceiver. TO

fianco à ̈ ripetuto il piano di montaggio per esteso di tutto il sistema radiante. on the side, the assembly plan is repeated in full for the entire radiant system.

Il trovato così concepito à ̈ suscettibile di numerose modifiche e varianti, tutte rientranti The invention thus conceived is susceptible of numerous modifications and variations, all of which are included

nell'ambito del concetto inventivo. Inoltre tutti i dettagli possono essere sostituiti da under the inventive concept. Also all details can be replaced by

elementi tecnicamente equivalenti. technically equivalent elements.

I THE

Claims (3)

RIVENDICAZIONI 1. Antenna tattica verticale raccorciata veicolare/portatile per ricetrasmettitori ad onde corte e VHF fino a 80 MHz e per collegamenti ad onda diretta e NVIS a media distanza, caratterizzata dal fatto di comprendere un radiatore (1) centrale rigido conduttivo il quale à ̈ connesso ad un mollone o giunto elastico conduttivo (3) ed à ̈ dotato di un connettore (4) per il collegamento al ricetrasm ; il radiatore (1) comprende inoltre cinque o più bacchette (1.1 ; 1.2; 1.3; 1.4; 1.5) in fibra, portate da un supporto di base (2.0) e circondanti a revolver il radiatore (I) e tenute in posizione da due dischi forati (2.1; 2.2), in materiale isolante, di supporto intermedio (2.1) e terminale (2.2); le bacchette (1.1; 1.2; 1.3; 1.4; 1.5) così irrigidite sostengono un cavetto (-) di acciaio, rame o altro conduttore, collegato elettricamente all’ estremità superiore del radiatore (1) fissato alle stesse per mezzo di una termo guaina (-). CLAIMS 1. Tactical vertical shortened vehicular / portable antenna for shortwave and VHF transceivers up to 80 MHz and for direct wave and medium distance NVIS connections, characterized by the fact of including a rigid conductive central radiator (1) which is connected to a spring or conductive elastic joint (3) and is equipped with a connector (4) for connection to the transceiver; the radiator (1) also includes five or more fiber rods (1.1; 1.2; 1.3; 1.4; 1.5), carried by a base support (2.0) and revolving around the radiator (I) and held in position by two discs perforated (2.1; 2.2), in insulating material, with intermediate (2.1) and terminal (2.2) support; the stiffened rods (1.1; 1.2; 1.3; 1.4; 1.5) support a wire (-) of steel, copper or other conductor, electrically connected to the upper end of the radiator (1) fixed to them by means of a thermo sheath (-). 2. Uso dell’antenna tattica verticale raccorciata secondo la rivendicazione 1 in un ricetrasmettitore veicolare ad onde corte e VHF fino a 80 MHz e per collegamenti ad onda diretta e NVIS. 2. Use of the shortened vertical tactical antenna according to claim 1 in a shortwave and VHF vehicular transceiver up to 80 MHz and for direct wave and NVIS connections. 3. Uso dell’antenna tattica verticale raccorciata secondo la rivendicazione 1 in un ricetrasmettitore tattico al posto dell’antenna tradizionale a stili componibili.3. Use of the shortened vertical tactical antenna according to claim 1 in a tactical transceiver instead of the traditional modular style antenna.
IT000603A 2012-11-06 2012-11-06 NVIS VERTICAL ANTENNA RECORDED FOR SHORT-WAVE TACTICAL TRANSCEIVERS ITBO20120603A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000603A ITBO20120603A1 (en) 2012-11-06 2012-11-06 NVIS VERTICAL ANTENNA RECORDED FOR SHORT-WAVE TACTICAL TRANSCEIVERS

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Application Number Priority Date Filing Date Title
IT000603A ITBO20120603A1 (en) 2012-11-06 2012-11-06 NVIS VERTICAL ANTENNA RECORDED FOR SHORT-WAVE TACTICAL TRANSCEIVERS

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5559524A (en) * 1991-03-18 1996-09-24 Hitachi, Ltd. Antenna system including a plurality of meander conductors for a portable radio apparatus
EP0814536A2 (en) * 1996-06-20 1997-12-29 Kabushiki Kaisha Yokowo Antenna and radio apparatus using same
EP0954054A1 (en) * 1998-04-30 1999-11-03 Kabushiki Kaisha Yokowo Folded antenna
US6271804B1 (en) * 1997-01-28 2001-08-07 Yokowo Co., Ltd. Antenna for mounting on vehicle, antenna element and manufacturing method thereof
US20080252535A1 (en) * 2007-04-11 2008-10-16 Harris Corporation Folded-monopole whip antenna, associated communication device and method
FR2918803A1 (en) * 2007-07-11 2009-01-16 Advanten Soc Par Actions Simpl Parasitic monopole antenna system i.e. tactical air navigation antenna system, for use in e.g. drone, has conducting rim formed on surface of dielectric layer and electrically connecting one end of one hole with end of another hole

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5559524A (en) * 1991-03-18 1996-09-24 Hitachi, Ltd. Antenna system including a plurality of meander conductors for a portable radio apparatus
EP0814536A2 (en) * 1996-06-20 1997-12-29 Kabushiki Kaisha Yokowo Antenna and radio apparatus using same
US6271804B1 (en) * 1997-01-28 2001-08-07 Yokowo Co., Ltd. Antenna for mounting on vehicle, antenna element and manufacturing method thereof
EP0954054A1 (en) * 1998-04-30 1999-11-03 Kabushiki Kaisha Yokowo Folded antenna
US20080252535A1 (en) * 2007-04-11 2008-10-16 Harris Corporation Folded-monopole whip antenna, associated communication device and method
FR2918803A1 (en) * 2007-07-11 2009-01-16 Advanten Soc Par Actions Simpl Parasitic monopole antenna system i.e. tactical air navigation antenna system, for use in e.g. drone, has conducting rim formed on surface of dielectric layer and electrically connecting one end of one hole with end of another hole

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