ITRM20100392A1 - MINIATURIZED MONOPOLOR WITH STRIPED INDUCTORS PRINTED AND MULTI-SPIRAL OPENING CAPACITORS - Google Patents
MINIATURIZED MONOPOLOR WITH STRIPED INDUCTORS PRINTED AND MULTI-SPIRAL OPENING CAPACITORS Download PDFInfo
- Publication number
- ITRM20100392A1 ITRM20100392A1 IT000392A ITRM20100392A ITRM20100392A1 IT RM20100392 A1 ITRM20100392 A1 IT RM20100392A1 IT 000392 A IT000392 A IT 000392A IT RM20100392 A ITRM20100392 A IT RM20100392A IT RM20100392 A1 ITRM20100392 A1 IT RM20100392A1
- Authority
- IT
- Italy
- Prior art keywords
- antenna
- miniaturized
- metallization
- printed
- fact
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 title claims description 12
- 230000005404 monopole Effects 0.000 claims description 16
- 238000001465 metallisation Methods 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010287 polarization Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/40—Element having extended radiating surface
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant 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
Description
“Monopolo Miniaturizzato con Induttori a Striscia, Capacitori Stampati e Muiti-Aperture a Spirale" "Miniaturized Monopole with Strip Inductors, Molded Capacitors and Spiral Muiti-Openings"
Sommario Summary
Monopolo stampato caricato con<->capacitori ed induttori realizzati in tecnologia planare ed integrati nell'antenna, con aperture a spirale praticate internamente alla metallizzazione di cui si costituisce l’antenna. Tali carichi permettono una drastica riduzione delle dimensioni del dispositivo, e ne aumentano la larghezza di banda pur preservandone le caratteristiche radiative, che rimangono quelle di un monopolo tradizionale su tutto l’intervallo di frequenze di funzionamento, ed introducono frequenze di funzionamento aggiuntive rispetto al caso di assenza di aperture nella metallizzazione. Il dispositivo à ̈ realizzato senza impiegare saldature, perforazioni e giunzioni. L’invenzione si colloca nel campo tecnico delle telecomunicazioni e nel campo applicativo della fabbricazione di dispositivi elettronici. Printed monopole loaded with <-> capacitors and inductors made in planar technology and integrated in the antenna, with spiral openings made inside the metallization of which the antenna is constituted. These loads allow a drastic reduction in the dimensions of the device, and increase its bandwidth while preserving its radiative characteristics, which remain those of a traditional monopole over the entire range of operating frequencies, and introduce additional operating frequencies with respect to the case of absence of openings in the metallization. The device is made without using welding, perforations and joints. The invention is located in the technical field of telecommunications and in the application field of the manufacture of electronic devices.
Descrizione Description
La presente invenzione riguarda un dispositivo denominato Monopolo Miniaturizzato con Induttori a Striscia , Capacitori Stampati e Multi-Aperture a Spirale, capace di irradiare e ricevere con grande efficienza un campo elettromagnetico, e caratterizzato da una grande ampiezza di banda, dimensioni ridotte ed un guadagno analogo a quella di strutture radianti simili ma elettricamente più grandi e non caricate. risono noti sul mercato e nella letteratura radiatori che, in virtù di aperture di forme poligonali o pseudo ellittiche praticate sulla metallizzazione ampliano la banda di impedenza del dispositivo sul quale sono applicati. The present invention relates to a device called Miniaturized Monopole with Strip Inductors, Printed Capacitors and Spiral Multi-Aperture, capable of radiating and receiving an electromagnetic field with great efficiency, and characterized by a large bandwidth, small dimensions and a similar gain. to that of similar but electrically larger and uncharged radiant structures. Radiators are known on the market and in the literature which, by virtue of openings of polygonal or pseudo-elliptic shapes made on the metallization, widen the impedance band of the device on which they are applied.
Sono altresì noti sul mercato e nella letteratura radiatori che, caricati reattivamente, permettono la riduzione delle dimensioni dell’antenna al costo di una variazione significativa della sua impedenza di ingresso; le antenne realizzate così con le metodologie e tecnologie disponibili sul mercato, devono quindi essere adattate nuovamente al circuito di alimentazione tramite l'introduzione di una opportuna rete di adattamento. Il carico reattivo introdotto in questi casi diminuisce inoltre l’efficienza di radiazione poiché aumenta la potenza immagazzinata nella zona di campo vicino dell’antenna. Radiators are also known on the market and in the literature which, reactively loaded, allow the reduction of the dimensions of the antenna at the cost of a significant variation of its input impedance; the antennas made in this way with the methodologies and technologies available on the market must therefore be adapted again to the power supply circuit by introducing an appropriate adaptation network. The reactive load introduced in these cases also decreases the radiation efficiency as the power stored in the near field area of the antenna increases.
È noto da studi ed invenzioni condotti dallo stesso inventore e già divulgati o brevettati, che la combinazione di elementi capacitivi e induttivi applicati simultaneamente all’antenna in modo da compensare l’induttanza e la capacità distribuite che caratterizzano la linea di alimentazione realizzano un meccanismo di compensazione di fase, noto dalla teoria dei meta-materiali a linea di trasmissione, che permette all'antenna di risuonare ad una frequenza più bassa rispetto alla stessa struttura non caricata. Tale procedimento non comporta però l’introduzione di un disadattamento di impedenza alla porta d’ingresso dell’antenna e non ne degrada le caratteristiche di direttività ed efficienza. Negli studi citati l'antenna viene accoppiata capacitivamente alla porta d’ingresso della rete di alimentazione. Nella presente invenzione invece, l’antenna non viene accoppiata capacitivamente alla linea di alimentazione ma viene introdotto un carico capacitivo concentrato posto internamente alla metallizzazione dell’antenna, comportando un aumento delia banda di impedenza ed un miglioramento generale delle caratteristiche radiative. La presente invenzione prevede inoltre l’utilizzo dì un induttore stampato a spirale complementare realizzato in tecnologia planare che, in configurazione singola o multipla, permette di migliorare le caratteristiche di adattamento dell'antenna e di introdurre frequenze di risonanza addizionali per permettere un funzionamento multi-band. Le frequenze di risonanza addizionali introdotte non variano con le dimensioni geometriche dell'antenna, ma solo con le dimensioni e la separazione delle spirali e, solo per tali frequenze, rendono l’antenna adatta alla ricezione di campi elettromagnetici polarizzati circolarmente, anche se la polarizzazione dell’antenna sulla quale sono applicate à ̈ lineare. La presente invenzione può essere utilizzata in tutti quegli scenari per i quali miniaturizzare ed integrare i sistemi d’antenna risultano specifiche fortemente vincolanti, assieme alla riduzione dei costi di produzione, potendo sia realizzare tali antenne tramite la consolidata tecnologia dei circuiti stampati sia evitare l’impiego di saldature e perforazioni nel processo produttivo. It is known from studies and inventions conducted by the inventor himself and already disclosed or patented, that the combination of capacitive and inductive elements applied simultaneously to the antenna in order to compensate for the inductance and distributed capacitance that characterize the power supply line create a phase compensation mechanism, known from the theory of transmission line meta-materials, which allows the antenna to resonate at a lower frequency than the same unfilled structure. However, this procedure does not involve the introduction of an impedance mismatch at the antenna input port and does not degrade its directivity and efficiency characteristics. In the studies cited, the antenna is coupled capacitively to the input port of the power supply network. In the present invention, on the other hand, the antenna is not capacitively coupled to the power supply line but a concentrated capacitive load placed inside the metallization of the antenna is introduced, resulting in an increase in the impedance band and a general improvement in the radiative characteristics. The present invention also provides for the use of a complementary spiral molded inductor made in planar technology which, in single or multiple configuration, allows to improve the adaptation characteristics of the antenna and to introduce additional resonance frequencies to allow operation multi-band. The additional resonant frequencies introduced do not vary with the geometric dimensions of the antenna, but only with the size and separation of the spirals and, only for these frequencies, make the antenna suitable for receiving circularly polarized electromagnetic fields, even if the polarization of the antenna on which they are applied is linear. The present invention can be used in all those scenarios for which miniaturizing and integrating antenna systems are highly binding specifications, together with the reduction of production costs, being able to both realize such antennas through the consolidated technology of printed circuits and avoid the € ™ use of welding and perforations in the production process.
L’invenzione viene di seguito descritta, a scopo illustrativo e non limitativo, facendo riferimento alle seguenti figure allegate: The invention is described below, for illustrative and non-limiting purposes, with reference to the following attached figures:
FIG.l : schema del dispositivo. FIG. 1: diagram of the device.
L’invenzione sfrutta il fatto che la componentistica elettronica odierna si basa per lo più sulla tecnologia planare dei circuiti stampati. The invention exploits the fact that today's electronic components are mostly based on the planar technology of printed circuits.
Nella FIG.l viene schematizzato il dispositivo costituito da un monopolo stampato alimentato, a scopo illustrativo e non limitativo, da una guida coplanare accoppiata ad un connettore SMA (1). Il monopolo (2), oggetto della presente invenzione reca inciso internamente alla metallizzazione che costituisce il monopolo un capacitore (3) il cui valore può essere facilmente regolato in base alle esigenze variandone la geometria. Alle estremità del monopolo sono presenti due strisce metalliche che cortocircuitano il monopolo al piano di massa (4). ' -Così caricato, il dispositivo risulta avere una dimensione lineare molto minore del valore lambda/4, intendendo con il termine “lambda" la lunghezza d’onda nel vuoto, tipico di un monopolo stampato, pur conservando le caratteristiche radiative e di efficienza tipiche di un monopolo stampato tradizionale, tale approccio può essere applicato al progetto di antenne che lavorano a qualsiasi frequenza minore di qualche THz. Figure 1 schematically illustrates the device consisting of a molded monopole fed, for illustrative and non-limiting purposes, by a coplanar guide coupled to an SMA connector (1). The monopole (2), object of the present invention, has a capacitor (3) engraved inside the metallization which constitutes the monopole, the value of which can be easily adjusted according to requirements by varying its geometry. At the ends of the monopole there are two metal strips that short-circuit the monopole to the ground plane (4). '-So loaded, the device has a linear dimension much smaller than the lambda / 4 value, meaning with the term â € œlambda "the wavelength in vacuum, typical of a molded monopole, while retaining the radiative characteristics and efficiency typical of a traditional printed monopole, this approach can be applied to the design of antennas that work at any frequency less than a few THz.
Gli induttori a spirale complementari (5), realizzati sull’antenna per rimozione dello strato metallico, introducono ulteriori frequenze di risonanza utili che si collocano al di fuori della banda di funzionamento principale ed anche a frequenze più basse. In tal modo, l’antenna, che opera prevalentemente in polarizzazione lineare, può ricevere alle frequenze corrispondenti alle risonanze delle spirali anche polarizzazioni di tipo circolare. The complementary spiral inductors (5), made on the antenna by removing the metal layer, introduce further useful resonance frequencies that are located outside the main operating band and also at lower frequencies. In this way, the antenna, which operates mainly in linear polarization, can also receive circular polarizations at the frequencies corresponding to the resonances of the spirals.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM2010A000392A IT1401200B1 (en) | 2010-07-15 | 2010-07-15 | MINIATURIZED MONOPOLOR WITH STRIPED INDUCTORS PRINTED AND MULTI-SPIRAL OPENING CAPACITORS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM2010A000392A IT1401200B1 (en) | 2010-07-15 | 2010-07-15 | MINIATURIZED MONOPOLOR WITH STRIPED INDUCTORS PRINTED AND MULTI-SPIRAL OPENING CAPACITORS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ITRM20100392A1 true ITRM20100392A1 (en) | 2012-01-16 |
IT1401200B1 IT1401200B1 (en) | 2013-07-12 |
Family
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Family Applications (1)
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ITRM2010A000392A IT1401200B1 (en) | 2010-07-15 | 2010-07-15 | MINIATURIZED MONOPOLOR WITH STRIPED INDUCTORS PRINTED AND MULTI-SPIRAL OPENING CAPACITORS. |
Country Status (1)
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IT (1) | IT1401200B1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020135521A1 (en) * | 2001-03-21 | 2002-09-26 | Amphenol-T&M Antennas. | Multiband PIFA antenna for portable devices |
DE10150149A1 (en) * | 2001-10-11 | 2003-04-17 | Receptec Gmbh | Antenna module for automobile mobile radio antenna has antenna element spaced above conductive base plate and coupled to latter via short-circuit path |
WO2005034289A1 (en) * | 2003-03-31 | 2005-04-14 | Alexander Ivanovich Karpov | Multiband aerial |
US20050280579A1 (en) * | 2004-06-21 | 2005-12-22 | Accton Technology Corporation | Antenna and antenna array |
WO2007114607A1 (en) * | 2006-03-31 | 2007-10-11 | E.M.W. Antenna Co., Ltd. | Antenna with increased electrical length and wireless communication device including the same |
EP2071668A1 (en) * | 2007-03-29 | 2009-06-17 | Murata Manufacturing Co. Ltd. | Antenna and wireless communication apparatus |
-
2010
- 2010-07-15 IT ITRM2010A000392A patent/IT1401200B1/en active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020135521A1 (en) * | 2001-03-21 | 2002-09-26 | Amphenol-T&M Antennas. | Multiband PIFA antenna for portable devices |
DE10150149A1 (en) * | 2001-10-11 | 2003-04-17 | Receptec Gmbh | Antenna module for automobile mobile radio antenna has antenna element spaced above conductive base plate and coupled to latter via short-circuit path |
WO2005034289A1 (en) * | 2003-03-31 | 2005-04-14 | Alexander Ivanovich Karpov | Multiband aerial |
US20050280579A1 (en) * | 2004-06-21 | 2005-12-22 | Accton Technology Corporation | Antenna and antenna array |
WO2007114607A1 (en) * | 2006-03-31 | 2007-10-11 | E.M.W. Antenna Co., Ltd. | Antenna with increased electrical length and wireless communication device including the same |
EP2071668A1 (en) * | 2007-03-29 | 2009-06-17 | Murata Manufacturing Co. Ltd. | Antenna and wireless communication apparatus |
Also Published As
Publication number | Publication date |
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IT1401200B1 (en) | 2013-07-12 |
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