SE533466C2 - Antenna - Google Patents

Antenna

Info

Publication number
SE533466C2
SE533466C2 SE0900132A SE0900132A SE533466C2 SE 533466 C2 SE533466 C2 SE 533466C2 SE 0900132 A SE0900132 A SE 0900132A SE 0900132 A SE0900132 A SE 0900132A SE 533466 C2 SE533466 C2 SE 533466C2
Authority
SE
Sweden
Prior art keywords
antenna
electrically conductive
conductive material
antenna element
surrounding
Prior art date
Application number
SE0900132A
Other languages
Swedish (sv)
Other versions
SE0900132A1 (en
Inventor
Tomas Rutfors
Original Assignee
Proant Ab
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 Proant Ab filed Critical Proant Ab
Priority to SE0900132A priority Critical patent/SE533466C2/en
Priority to PCT/SE2010/000020 priority patent/WO2010090573A1/en
Priority to EP10738804A priority patent/EP2394331A1/en
Publication of SE0900132A1 publication Critical patent/SE0900132A1/en
Publication of SE533466C2 publication Critical patent/SE533466C2/en

Links

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
    • H01Q9/42—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • 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
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H01Q5/385—Two or more parasitic elements
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • H01Q5/392—Combination of fed elements with parasitic elements the parasitic elements having dual-band or multi-band characteristics
    • 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
    • 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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Landscapes

  • Details Of Aerials (AREA)
  • Waveguide Aerials (AREA)
  • Support Of Aerials (AREA)

Description

25 30 533 466 2 av antennen och kan skapa extra resonans vid önskvärd frekvens. De resonansfrekvenser som skapas via passiva element är i allmänhet i närhet eller högre än antennens grundresonans. De publicerade patentansökningarna USZOO6/Ql76226, USZOO7/0030200, US2008/0136711 och USZOO8/0180330 visar några olika antenner med extra passiva element. Dessa används för att skapa extra resonanser för att utöka antennens bandbredd eller för att skapa resonanser vid högre frekvenser. Föreliggande uppfinning uppnår tvà olika och önskvärda egenskaper, antennen kan monteras i närhet och ovan ett jordplan och en extra resonans kan skapas vilken kan ha tydligt lägre resonansfrekvens än antennens grundfrekvens. 533 466 2 of the antenna and can create extra resonance at the desired frequency. The resonant frequencies created via passive elements are generally close to or higher than the fundamental resonance of the antenna. The published patent applications USZOO6 / Ql76226, USZOO7 / 0030200, US2008 / 0136711 and USZOO8 / 0180330 show some different antennas with extra passive elements. These are used to create extra resonances to increase the bandwidth of the antenna or to create resonances at higher frequencies. The present invention achieves two different and desirable properties, the antenna can be mounted in the vicinity and above a ground plane and an extra resonance can be created which can have a clearly lower resonant frequency than the fundamental frequency of the antenna.

Redogörelse för uppfinningen Föreliggande uppfinning består av en antenn med minst ett antennelement av elektriskt ledande material väsentligen förlagd inom ett inre område som har ett i huvudsak omgivande elektriskt ledande material och att det finns en slits i det omgivande elektriskt ledande materialet in till det inre området. Genom denna utformning på antennen kommer det omgivande elektriskt ledande materialet med dess slits att tillsammans med det aktiva antennelementet och den elektromagnetiska kopplingen mellan dessa, att skapa en resonans vid en lägre eller mycket lägre frekvens än det aktiva elementets resonansfrekvens. Genom att justera längd, bredd och slitsplacering på det omgivande elektriskt ledande materialet kan dess resonansfrekvens och impedans ändras och justeras. En ytterligare viktig och enkel justering av resonansfrekvensen sker genom att ändra slitsens utformning och dess spaltbredd. Om en lägre resonansfrekvens behövs kan slitsens spaltbredd minskas och vise versa. En längre slits ger också en lägre resonansfrekvens. 10 15 20 25 30 533 465 3 Radiosignal till antennelement via koaxialkabel kan med fördel anslutas med kopplingspunkt i det inre området. Ofta är det nödvändigt att anpassa impedansen på antennelementet genom att skapa en anslutning mellan antennelementet och det omgivande elektriskt ledande materialet och i allmänhet är denna anslutning galvanisk. Det omgivande elektriskt ledande materialets spalt kan placeras godtyckligt men ofta erhålls goda egenskaper vid en placering långt ifrån radiosignalens inkopplingspunkt till antennelementet. Slitsen brukar därigenom vara placerad i närheten av antennelementets avslutning.Disclosure of the Invention The present invention consists of an antenna having at least one antenna element of electrically conductive material located substantially within an inner region having a substantially surrounding electrically conductive material and that there is a slot in the surrounding electrically conductive material into the inner region. Due to this design of the antenna, the surrounding electrically conductive material with its slot, together with the active antenna element and the electromagnetic coupling between them, will create a resonance at a lower or much lower frequency than the resonant frequency of the active element. By adjusting the length, width and slot placement of the surrounding electrically conductive material, its resonant frequency and impedance can be changed and adjusted. A further important and simple adjustment of the resonant frequency takes place by changing the design of the slot and its gap width. If a lower resonant frequency is needed, the slit width of the slit can be reduced and vice versa. A longer slit also gives a lower resonant frequency. 10 15 20 25 30 533 465 3 Radio signal to antenna element via coaxial cable can advantageously be connected with connection point in the inner area. Often it is necessary to adjust the impedance of the antenna element by creating a connection between the antenna element and the surrounding electrically conductive material and in general this connection is galvanic. The gap of the surrounding electrically conductive material can be placed arbitrarily, but good properties are often obtained at a location far from the connection point of the radio signal to the antenna element. The slot is thus usually located near the end of the antenna element.

I antennens inre område kan det även finnas flera antennelement vilka kan vara anslutna till antingen radiosignal eller jord. Genom att lägga till flera antennelement kan fler resonansfrekvenser skapas för att öka bandbredd eller att skapa en effektiv antenn för fler kommunikationsband.In the inner area of the antenna there can also be several antenna elements which can be connected to either a radio signal or earth. By adding more antenna elements, more resonant frequencies can be created to increase bandwidth or to create an efficient antenna for more communication bands.

För att ytterligare förbättra funktion kan antennen kompletteras med extra antennelement som förläggs utanför det omgivande elektriska området. Dessa antennelement kan ha godtycklig form och en för antennen avpassad längd.To further improve function, the antenna can be supplemented with additional antenna elements that are placed outside the surrounding electrical area. These antenna elements can have any shape and a length adapted to the antenna.

Det är med fördel lämpligt att placera antenn enligt uppfinningen i en plastlåda och ansluta radiosignal via koaxial kabel. Därigenom kan antennen fungera som en extern antenn för en mängd olika applikationer. En antenn enligt uppfinningen ansluts med radiosignal till ett antennelement där det omgivande elektriskt ledande materialet ansluts till radiosignalens jord. 10 15 20 25 30 533 466 Figurbeskrivning: Figur 1: visar antenn enligt uppfinningen med en enkel form.It is advantageously suitable to place the antenna according to the invention in a plastic box and connect the radio signal via coaxial cable. Thereby, the antenna can function as an external antenna for a variety of applications. An antenna according to the invention is connected by radio signal to an antenna element where the surrounding electrically conductive material is connected to the ground of the radio signal. Description: Figure 1: shows the antenna according to the invention with a simple shape.

Figur 2: visar en antenn enligt uppfinningen med ansluten koaxialkabel och impedansanpassning av antennelement.Figure 2: shows an antenna according to the invention with connected coaxial cable and impedance matching of antenna elements.

Figur 3: visar en antenn enligt uppfinningen med fler antennelement samt en modifierad slits.Figure 3: shows an antenna according to the invention with more antenna elements and a modified slot.

Figur 4: visar antenn enligt uppfinningen där den är utformad som en antenn för extern montering.Figure 4: shows the antenna according to the invention where it is designed as an antenna for external mounting.

Föredragna utföringsformer En antenn enligt föreliggande uppfinning kan vara utformad enligt figur l. Antennelementet (10) område (ll) vilken är omgiven av ett elektriskt ledande (13) området. Radiosignal kopplas lämpligen vid (14) och dess jord vid (15). är placerat i ett inre material (12) och där det finns en slits in till det inre Figur 2 visar en alternativ utformning där en koaxialkabel (16) har anslutits till antennelementets kopplingspunkt (14) och omgivande elektriskt ledande materialet (15). En koppling (17) mellan antennelement (10) (12) har lagts till för att justera antennens impedans till exempelvis 50 och det omgivande elektriskt ledande materialet ohm. Figur 3 visar ytterligare en alternativ utformning där extra antennelement (l8) och (19) har lagts till för att skapa extra resonansfrekvenser för att utöka bandbredd eller skapa en god antennfunktion för andra frekvensband enligt de önskemål och krav som ställs på antennen. Slitsen (13) är modifierad och kan genom ändrad utformning som slitslängd och spaltbredd justera in en lämplig frekvens, vilken vanligtvis (10) genererar. Antennens utformning enligt figur 3 har även ett antennelement är lägre än den resonansfrekvens som antennelement (20) vilken är placerad utanför det inre området. Det inses enkelt att antenner inte behöver ha 10 15 20 25 30 533 465 5 antennelement enligt figur 3, utan utformning, placering och antal element kan ändras inom uppfinningen. Figur 4 visar hur en antenn baserad på föreliggande uppfinning kan gestaltas.Preferred Embodiments An antenna according to the present invention may be formed according to Figure 1. The antenna element (10) area (11) which is surrounded by an electrically conductive (13) area. Radio signal is suitably connected at (14) and its ground at (15). is placed in an inner material (12) and where there is a slot into the inner Figure 2 shows an alternative design where a coaxial cable (16) has been connected to the connection point (14) of the antenna element and the surrounding electrically conductive material (15). A coupling (17) between antenna elements (10) (12) has been added to adjust the impedance of the antenna to, for example, 50 and the surrounding electrically conductive material ohms. Figure 3 shows a further alternative design where extra antenna elements (18) and (19) have been added to create extra resonant frequencies to increase bandwidth or to create a good antenna function for other frequency bands according to the wishes and requirements placed on the antenna. The slot (13) is modified and can, by changing its design such as slot length and slot width, adjust to a suitable frequency, which usually (10) generates. The design of the antenna according to Figure 3 also has an antenna element lower than the resonant frequency of the antenna element (20) which is located outside the inner region. It is easily understood that antennas do not have to have antenna elements according to Figure 3, but the design, location and number of elements can be changed within the invention. Figure 4 shows how an antenna based on the present invention can be designed.

Figur 4 visar ett antennelement enligt figur 1 till 3 med vy från sidan där antennelement (22) med omgivande elektriskt ledande material är placerat på ett substrat (21) (23) . Antennen är placerad i en kåpa lämpligen av plast eller andra elektriska isolatorer och den anslutande koaxialkabeln (24) förläggs ut från antennens kåpa. En antenn enligt figur 4 kan monteras på både metalliska och icke metalliska material (25) med god antennfunktion.Figure 4 shows an antenna element according to Figures 1 to 3 with a side view where antenna element (22) with surrounding electrically conductive material is placed on a substrate (21) (23). The antenna is placed in a housing suitably made of plastic or other electrical insulators and the connecting coaxial cable (24) is laid out from the antenna housing. An antenna according to figure 4 can be mounted on both metallic and non-metallic materials (25) with good antenna function.

En antenn enligt uppfinningen kan med fördel utformas på ett laminat, exempelvis FR4 eller andra typer, med normal mönsterkortstillverkning. Det ger en mycket billig antenn med god prestanda. Antenn kan även utformas på flexibla substrat och även direkt ut plåt med stansning eller etsningsmetoder.An antenna according to the invention can advantageously be designed on a laminate, for example FR4 or other types, with normal printed circuit board production. It provides a very cheap antenna with good performance. Antenna can also be designed on flexible substrates and also directly out sheet metal with punching or etching methods.

En antenn enligt uppfinningen kan fungera vid en mängd olika frekvensband, GSM900 (880 ~ 960 MHz), GSM1800 (1710-1880 MHz) och UMTS (1920 - 1980, 2110 - 2170 MHz). Applicerat på figur 3 kan antennelement (10) fungera effektivt för GSM900, antennelement (18) och (19) och UMTS, (13) exempelvis 434 MHz, för GSMl80O och omgivande elektriskt ledande materialet (12) och dess (10) skapar en effektiv antenn för 434 MHz. I detta fall skapar det omgivande materialet med dess med slits koppling till antennelement slits en antenn vid en frekvens avsevärt lägre än det aktiva antennelementet (10). Antennelement (20) kan också skapa extra resonans och/eller förbättra impedansanpassning till exempelvis 50 ohm. Det inses enkelt att olika kombinationer av frekvensband kan uppnås via denna uppfinning. Det omgivande elektriskt ledande materialet (12) kan ha längd och bredd proportioner som skiljer sig från figurerna 1 till 3ÄAn antenna according to the invention can operate at a variety of frequency bands, GSM900 (880 ~ 960 MHz), GSM1800 (1710-1880 MHz) and UMTS (1920 - 1980, 2110 - 2170 MHz). Applied to Figure 3, antenna elements (10) can operate efficiently for GSM900, antenna elements (18) and (19) and UMTS, (13) for example 434 MHz, for GSM180O and surrounding electrically conductive material (12) and its (10) create an efficient antenna for 434 MHz. In this case, the surrounding material with its slit coupling to antenna element creates slit an antenna at a frequency considerably lower than the active antenna element (10). Antenna elements (20) can also create extra resonance and / or improve impedance matching to, for example, 50 ohms. It will be readily appreciated that various combinations of frequency bands may be achieved through this invention. The surrounding electrically conductive material (12) may have length and width proportions different from Figures 1 to 3A.

Claims (1)

1. 0 15 20 25 30 533 4GB Patentkrav 1) 5) 6) Antenn innehållande minst ett antennelement (10) av ett elektriskt ledande material väsentligen förlagt inom (11), elektriskt ledande material ett inre område samt ett i huvudsak omgivande (12) (13) i det omgivande elektriskt ledande materialet (ll), kännetecknas av att antennelementet (10) i det inre vidare innefattande en slits (12) in till det inre området varvid antennen området är anordnat att vara ett aktivt antennelement. Antenn enligt krav l, kännetecknas av antennelementets kopplingspunkt till en koaxialkabel är förlagd inom det inre området. Antenn enligt krav l eller 2, kännetecknas av att antennelementet har en koppling till det omgivande elektriskt ledande materialet. Antenn enligt något av kraven 1 - 3, kännetecknas av att slitsen till det inre området är förlagd långt ifrån antennelementets kopplingspunkt till radiosändare och/eller mottagare. Antenn enligt något av kraven 1 - 4, kännetecknas av att antennen innehåller flera elektriskt ledande antennelement inom det inre området. Antenn enligt något av kraven 1 - 5, kännetecknas av att antennen har elektriskt ledande material som skjuter ut eller förläggs i en slinga ut från det inre områdets -omgivande elektriskt ledande material. 10 7) 8) 533 455 ? Antenn enligt något av kraven l - 6, kännetecknas av att den är placerad inuti en plastlåda med koaxialkabel ut fràn lådan för inkoppling till radiosändare eller mottagare. Antenn enligt något av kraven 1 - 7, kännetecknas av att signal fràn radiosändare och/eller mottagare ansluts till ett antennelement och att dess jord ansluts till det omgivande elektriskt ledande materialet.1 0 15 20 25 30 533 4GB Claims 1) 5) 6) Antenna containing at least one antenna element (10) of an electrically conductive material substantially located within (11), electrically conductive material an inner region and a substantially surrounding (12) (13) in the surrounding electrically conductive material (11), characterized in that the antenna element (10) in the interior further comprises a slot (12) into the inner area, the antenna area being arranged to be an active antenna element. An antenna according to claim 1, characterized by the connection point of the antenna element to a coaxial cable is located within the inner area. An antenna according to claim 1 or 2, characterized in that the antenna element has a connection to the surrounding electrically conductive material. Antenna according to one of Claims 1 to 3, characterized in that the slot for the inner region is located far from the connection point of the antenna element to the radio transmitter and / or receiver. Antenna according to one of Claims 1 to 4, characterized in that the antenna contains several electrically conductive antenna elements within the inner region. An antenna according to any one of claims 1 to 5, characterized in that the antenna has electrically conductive material which projects or is placed in a loop out from the electrically conductive material surrounding the inner area. 10 7) 8) 533 455? An antenna according to any one of claims 1 to 6, characterized in that it is placed inside a plastic box with coaxial cable out of the box for connection to a radio transmitter or receiver. An antenna according to any one of claims 1 to 7, characterized in that a signal from a radio transmitter and / or receiver is connected to an antenna element and that its ground is connected to the surrounding electrically conductive material.
SE0900132A 2009-02-04 2009-02-04 Antenna SE533466C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0900132A SE533466C2 (en) 2009-02-04 2009-02-04 Antenna
PCT/SE2010/000020 WO2010090573A1 (en) 2009-02-04 2010-01-28 Antenna
EP10738804A EP2394331A1 (en) 2009-02-04 2010-01-28 Antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0900132A SE533466C2 (en) 2009-02-04 2009-02-04 Antenna

Publications (2)

Publication Number Publication Date
SE0900132A1 SE0900132A1 (en) 2010-08-05
SE533466C2 true SE533466C2 (en) 2010-10-05

Family

ID=42542284

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0900132A SE533466C2 (en) 2009-02-04 2009-02-04 Antenna

Country Status (3)

Country Link
EP (1) EP2394331A1 (en)
SE (1) SE533466C2 (en)
WO (1) WO2010090573A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8872712B2 (en) 2011-06-08 2014-10-28 Amazon Technologies, Inc. Multi-band antenna
TWI542073B (en) 2011-08-04 2016-07-11 智易科技股份有限公司 Multi-band inverted-f antenna
US8624787B2 (en) * 2011-08-12 2014-01-07 Given Imaging Ltd. Wearable antenna assembly for an in-vivo device
TWI483460B (en) * 2011-12-28 2015-05-01 Acer Inc Communication device and antenna structure therein
JP6241782B2 (en) * 2013-08-30 2017-12-06 国立大学法人 長崎大学 Inverted F-plane antenna and antenna device
TWI521800B (en) * 2013-09-24 2016-02-11 Arcadyan Technology Corp Single - pole coupled dual - band antenna
JP5824563B1 (en) * 2014-09-22 2015-11-25 学校法人智香寺学園 Small slot antenna

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002043182A1 (en) * 2000-11-24 2002-05-30 Siemens Aktiengesellschaft Pifa antenna device for mobile communication terminals
US6917335B2 (en) * 2002-11-08 2005-07-12 Centurion Wireless Technologies, Inc. Antenna with shorted active and passive planar loops and method of making the same
US7183982B2 (en) * 2002-11-08 2007-02-27 Centurion Wireless Technologies, Inc. Optimum Utilization of slot gap in PIFA design
US7518555B2 (en) * 2005-08-04 2009-04-14 Amphenol Corporation Multi-band antenna structure
KR100718375B1 (en) * 2005-09-01 2007-05-14 주식회사 팬택앤큐리텔 Mobile phone had a function of protecting the Electro-Static Discharge

Also Published As

Publication number Publication date
EP2394331A1 (en) 2011-12-14
SE0900132A1 (en) 2010-08-05
WO2010090573A1 (en) 2010-08-12

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