EP0965152B1 - Resonanzantenne - Google Patents

Resonanzantenne Download PDF

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Publication number
EP0965152B1
EP0965152B1 EP98912379A EP98912379A EP0965152B1 EP 0965152 B1 EP0965152 B1 EP 0965152B1 EP 98912379 A EP98912379 A EP 98912379A EP 98912379 A EP98912379 A EP 98912379A EP 0965152 B1 EP0965152 B1 EP 0965152B1
Authority
EP
European Patent Office
Prior art keywords
antenna
conductor section
resonator
fact
conductor
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.)
Expired - Lifetime
Application number
EP98912379A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0965152A1 (de
Inventor
Lutz Rothe
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.)
Pates Technology Pantentverwertungsgesellschaft fur Satelliten- und Moderne Informationstechnologien Mbh
Original Assignee
Pates Technology Pantentverwertungsgesellschaft fur Satelliten- und Moderne Informationstechnologien Mbh
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 Pates Technology Pantentverwertungsgesellschaft fur Satelliten- und Moderne Informationstechnologien Mbh filed Critical Pates Technology Pantentverwertungsgesellschaft fur Satelliten- und Moderne Informationstechnologien Mbh
Publication of EP0965152A1 publication Critical patent/EP0965152A1/de
Application granted granted Critical
Publication of EP0965152B1 publication Critical patent/EP0965152B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • 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
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines

Definitions

  • the invention relates to an antenna for receiving and transmitting of electromagnetic microwaves of wavelengths ⁇ from a substrate layer made of low dielectric Material that has a conductive ground plane on one side has and the opposite side conductive in the form of Microstrip lines is structured.
  • the scope of the invention extends ostensibly in the mobile and handheld technology sector within the spectral range between 890 MHz and 960 MHz or 1710 MHz and 1890 MHz by the component according to the invention into the corresponding end device and handheld technology is integrated.
  • Known antenna solutions for the field of mobile radio applications are based on linear antenna designs in form of monopole arrangements in a shortened or unabridged version. These linear antennas are both externally mountable On-board antennas as well as directly with the end device coupled components known, as well as with different Indicative factor and efficiency, where these components in the azimuthal plane are only round strands are.
  • Known flat antenna solutions are based on two-dimensional, dipole-like configurations, whose directional diagram is irregular and in connection with the the respective antenna carrier or antenna body have a significant radiation field deformation. The radiation properties related to the area of application are clear from those of the classic linear antennas inferior. There are also targeted blanking properties of the radiation diagram undetectable. Farther no solutions are known whose electromagnetic or radiation properties based on asymmetrical and open waveguide technology, especially microstrip technology, using foil conductors or foil-like guide surfaces can be achieved.
  • the one shown in the patent DE 41 13 277 and azimuthal omnidirectional antenna configuration is only possible from a film as a mechanical structural support, said antenna component having an outside of the terminal equipment arranged head capacity is.
  • the main radiation direction an inclination with respect to the elevation values of approx. (minus) -30 ° (angular degree), that is, a negative one Has elevation angle.
  • a disadvantage of the known antenna configurations is hence that they are either in the azimuthal plane exclusively are omnidirectional or only within the negative Radiate elevation angle range.
  • the object of the present invention is a system integrable Antenna component with the smallest possible area Expansion with azimuthal as possible one-sided Directionality, that is the preferred illumination of a Spatial hemisphere and a limited angular displacement of the elevation-related directivity within the positive To provide elevation angle range.
  • the antenna according to the invention which can also be referred to as a foil radiator, is a modified ⁇ / 4 radiator which is short-circuited to ground on one side.
  • the elongated conductor section which serves as a resonator, is made shorter than ⁇ ⁇ / 4.
  • the resonator becomes inductive and the vibration condition is not met.
  • an end capacitance is generated at the end of the resonator opposite the short-circuited side.
  • This end capacitance is generated by at least one additional additional conductor section, one end of which connects to the end of the resonator opposite the short-circuited side and the other end of which forms an open circuit.
  • the length of the additional further conductor sections determine the vibration condition and thus the resulting resonance frequency of the entire structure.
  • Various embodiments of the conductor sections at the end of the resonator are conceivable for realizing a defined end capacitance for maintaining the vibration condition.
  • the end capacitance can be realized by one or more lines of appropriate length, which do not necessarily have to run parallel to one another or to the resonator. All lines can also be designed in any curved shape and not just in a straight shape.
  • the electrical properties of this antenna e.g. Quality, Impedance bandwidth, efficiency and gain depend on the size of the mechanical reduction (reduction) achieved, the width of the resonator, the distance between the resonator and the end capacitance sections, the effective permittivity constant, the substrate thickness or of the dielectric loss angle.
  • an essential feature of the invention is that the resonators implemented in microstrip technology for receiving the microwaves are shorter than ⁇ ⁇ / 4, which enables a particularly compact and small construction to be achieved. Because the resonator length is chosen to be shorter than ⁇ ⁇ / 4, the oscillation condition is no longer met, as already explained. The required end capacities are realized by further line sections. An increase in the frequency bandwidth can be achieved by additional radiator elements through electromagnetic coupling. This is done by additional microstrip lines, which are arranged at certain distances from the resonator and its end capacitors.
  • resonators can be arranged spatially nested in one another and matched to the required frequency bands.
  • the individual antennas do not have to be in one plane but can also be arranged in layers one above the other. It is also possible that several antenna arrangements are provided per layer, so that more than two different frequency bands can be operated. This makes it possible for a mobile radio telephone to be able to communicate with different mobile radio networks.
  • FIG. 1 shows an antenna according to the invention with a film-like low dielectric carrier 10, which is one-sided with a conductive structure S consisting of parallel to each other and rectilinear conductor sections 2, 3 and 4 of different lengths coated is, the conductor section 3 is conductive and one-sided is connected to a ground plane 8, which in turn, as shown in Figure 2, via a conductive coating the cross-sectional area of the carrier substrate 10 is connected to ground level 1.
  • the ground surface 8 by means of or a plurality of contact pins covering the dielectric substrate layer 10 reach through, with the ground level 1 in connection his.
  • the conductive coating of the Cross-sectional area of the carrier substrate 10 does not have to have the entire width of the antenna, but it can be a partial coating of the film cross-sectional area made become.
  • the conductor sections 2, 3 and 4 are each by a gap 5.6 of defined spa width from one another arranged separately, the conductor sections 2, 3 and 4 in each case by a strip-shaped strip running in the transverse direction Conductor section 7 of defined section length and -Width are conductively interconnected, the in Conductor section running transversely on that of the ground contact 8 opposite end of the conductor section Antenna is arranged.
  • the input impedance of the microstrip array is along the location of the coupling 9 the line of symmetry of the conductor section 3 determines the again from the resulting length of the conductor sections 2 and 4 depends, the signal coupling in and out on Location 9 via a circular coaxial orifice slit or rectangular aperture.
  • Dielectric constant as well as defined geometry is influenced or minimized.
  • the dielectric carrier layer 10 is in particular one Polystyrene film with a layer thickness of 1 mm, which is one-sided and all over with a copper or aluminum foil Layer thickness between 0.01 mm and 0.5 mm is provided forms the ground plane.
  • the dielectric layer 11 also has one Layer thickness of approx. 1 mm.
  • the antenna has a length L A of 119 mm and a width B A of 40 mm.
  • the length L 8 of the ground surface 8 is 20 mm.
  • the distance L 5 from the ground surface 8 to the feed point of the antenna 9 is also 20 mm.
  • the diameter of the aperture 15 is 4.1 mm.
  • the length of the conductor sections K 1 and K 2 forming the final capacitance are 82.6 mm and 56.7 mm.
  • the length L A of the conductor section 3 or R forming the resonator is 85.7 mm.
  • the width of the conductor section 2 is 11.5 mm and the width of the conductor section 4 is 9.5 mm.
  • the width of the resonator conductor section is 12 mm.
  • FIG. 3 shows a radiator according to the invention, in which only one parallel to the resonator conductor section 3 or R arranged conductor section K forms the final capacitance.
  • FIG. 4 shows an emitter according to the invention, in which the. Sndcapacitance is formed by two parallel conductor sections K 1 and K 2 , which are arranged on one side of the resonator conductor section R.
  • an antenna can be configured in which the resulting end capacitance is realized by three or four conductor sections K 1 to K 4 .
  • FIG. 7 shows a further embodiment of the invention Antenna where the end capacitance is Conductor sections 16 and 17 are not rectilinear, but have a rectangular shape.
  • FIG. 8 shows antennas in which the frequency bandwidth the antenna through electromagnetic coupling with additional conductor elements, which on the same dielectric carrier substrate are arranged, is adjusted or enlarged.
  • the antenna according to FIG. 8 corresponds in its basic structure to the antenna according to FIG. 3, a U-shaped conductor section 19, 20, 21 with its one leg 21 in the gap between the resonator conductor section 3 and the final capacity. Head section 2 engages.
  • the other leg 19 is with an additional ground surface 18 in connection, which in turn corresponding to the ground plane 9 with the ground plane i is connected.
  • the basic structure of FIG. 9 corresponds of Figure 1, with two additional U-shaped Conductor sections 23 to 28 are provided, which each with its one leg 27, 28 in the through the Intervene conductor sections 2, R, 4 formed column.
  • FIGS. 9 and 10 show further possible configurations the antenna according to the invention, the arrangement of the additional, the coupling to increase the frequency bandwidths influencing conductor sections 30 to 38 is in principle arbitrary. It is also conceivable that the Interconnect conductor sections spirally so that on relatively small space a long parallel routing of conductor sections is produced.
  • FIGS. 11 to 14 show antennas in which two antenna signals can be coupled in or out, as a result of which two frequency bands can be received or operated simultaneously using only one film antenna. Due to the different design of the resonator conductor sections R a and R b , the resonance conditions in connection with the conductor sections 41a, b and 42a, b and the locations 43a, 43b of the coupling-out of the electromagnetic waves are determined. Due to the nesting of the two radiator arrangements, they can be arranged in a confined space.
  • FIG. 12 shows a further embodiment of an antenna with two connections 51a, 51b for dielectric waveguides, only that shown in Figure 8 Spotlight arrangement in different dimensions arranged side by side on a substrate carrier are.
  • Figures 13 and 14 show a multi-layer antenna, at which the antennas according to the invention one above the other in several layers are sandwiched, one each Antenna the vibration conditions for the frequencies of a corresponds to certain cellular network. Because of the different Resonance frequencies interfere with one another arranged strahiunas structures only insignificantly. Compared to the arrangement according to FIG. 2, the Layering the radiator structures less space needed, whereby the antenna according to Figure 13 more compact and thus the housing of a mobile phone that encloses it can be made relatively small.
  • FIG. 14 shows the antenna according to FIG. 13 in cross section.
  • the conductive coating 12a, b of the cross-sectional area of the carrier substrates 10a and 10b is conductively connected to the structured layers S A and S B.
  • Such a conductive cross-sectional coating can also be provided on the opposite side, depending on the antenna design.

Landscapes

  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Burglar Alarm Systems (AREA)
EP98912379A 1997-02-25 1998-02-24 Resonanzantenne Expired - Lifetime EP0965152B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19707535 1997-02-25
DE19707535A DE19707535A1 (de) 1997-02-25 1997-02-25 Folienstrahler
PCT/EP1998/001040 WO1998038694A1 (de) 1997-02-25 1998-02-24 Resonanzantenne

Publications (2)

Publication Number Publication Date
EP0965152A1 EP0965152A1 (de) 1999-12-22
EP0965152B1 true EP0965152B1 (de) 2002-09-04

Family

ID=7821434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98912379A Expired - Lifetime EP0965152B1 (de) 1997-02-25 1998-02-24 Resonanzantenne

Country Status (10)

Country Link
US (1) US6304219B1 (ko)
EP (1) EP0965152B1 (ko)
JP (1) JP2001513283A (ko)
KR (1) KR20000075673A (ko)
AT (1) ATE223621T1 (ko)
AU (1) AU6724398A (ko)
CA (1) CA2282611C (ko)
DE (3) DE19707535A1 (ko)
IL (1) IL131558A0 (ko)
WO (1) WO1998038694A1 (ko)

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US6343208B1 (en) * 1998-12-16 2002-01-29 Telefonaktiebolaget Lm Ericsson (Publ) Printed multi-band patch antenna
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US6408190B1 (en) * 1999-09-01 2002-06-18 Telefonaktiebolaget Lm Ericsson (Publ) Semi built-in multi-band printed antenna
FI114587B (fi) * 1999-09-10 2004-11-15 Filtronic Lk Oy Tasoantennirakenne
DE19961488A1 (de) 1999-12-20 2001-06-21 Siemens Ag Antenne für ein Kommunikationsendgerät
US20010050643A1 (en) * 2000-02-22 2001-12-13 Igor Egorov Small-size broad-band printed antenna with parasitic element
FI114254B (fi) 2000-02-24 2004-09-15 Filtronic Lk Oy Tasoantennirakenne
JP3658639B2 (ja) * 2000-04-11 2005-06-08 株式会社村田製作所 表面実装型アンテナおよびそのアンテナを備えた無線機
DE10022107A1 (de) * 2000-05-08 2001-11-15 Alcatel Sa Integrierte Antenne für Mobilfunktelefone
ES2185463B1 (es) * 2000-11-10 2004-09-16 Universidad Politecnica De Cartagena Antena dual para terminales moviles.
WO2002078123A1 (en) * 2001-03-23 2002-10-03 Telefonaktiebolaget L M Ericsson (Publ) A built-in, multi band, multi antenna system
US6456243B1 (en) * 2001-06-26 2002-09-24 Ethertronics, Inc. Multi frequency magnetic dipole antenna structures and methods of reusing the volume of an antenna
EP1439606B1 (en) * 2001-10-11 2006-06-14 Taiyo Yuden Co., Ltd. Dielectric antenna
JP2003188637A (ja) * 2001-12-20 2003-07-04 Hitachi Cable Ltd 平板多重アンテナおよび携帯端末
KR20030078448A (ko) * 2002-03-29 2003-10-08 현우마이크로 주식회사 아이엠티-2000(ＩＭＴ-2000) 소형 중계기용 광대역 이슬롯(Ｅ-ｓｈａｐｅｄ ＳｌｏＴ) 패치 안테나
JP2003347827A (ja) * 2002-05-28 2003-12-05 Ngk Spark Plug Co Ltd アンテナ及びそれを備えた無線周波モジュール
TWI281782B (en) * 2002-12-25 2007-05-21 Quanta Comp Inc Portable wireless device
US6850199B2 (en) * 2003-06-11 2005-02-01 Auden Techno Corp. U-shaped multi-frequency antenna of high efficiency
KR100623683B1 (ko) * 2003-12-13 2006-09-18 학교법인 한국정보통신학원 다중대역 케이블 안테나
KR100675383B1 (ko) 2004-01-05 2007-01-29 삼성전자주식회사 극소형 초광대역 마이크로스트립 안테나
DE102004016157A1 (de) * 2004-04-01 2005-11-03 Kathrein-Werke Kg Antenne nach planarer Bauart
JP2006140589A (ja) * 2004-11-10 2006-06-01 Casio Hitachi Mobile Communications Co Ltd アンテナ構造
TWI256173B (en) 2005-04-18 2006-06-01 Wistron Neweb Corp Planar monopole antenna
CN1855625A (zh) * 2005-04-20 2006-11-01 启碁科技股份有限公司 平面式单极天线
US7535005B2 (en) * 2007-01-31 2009-05-19 Emcore Corporation Pulsed terahertz spectrometer
US7439511B2 (en) * 2007-01-31 2008-10-21 Emcore Corporation Pulsed terahertz frequency domain spectrometer with single mode-locked laser and dispersive phase modulator
US7936453B2 (en) * 2008-04-04 2011-05-03 Emcore Corporation Terahertz frequency domain spectrometer with integrated dual laser module
US8604433B2 (en) 2008-05-19 2013-12-10 Emcore Corporation Terahertz frequency domain spectrometer with frequency shifting of source laser beam
US9029775B2 (en) 2008-05-19 2015-05-12 Joseph R. Demers Terahertz frequency domain spectrometer with phase modulation of source laser beam
US7781736B2 (en) * 2008-05-19 2010-08-24 Emcore Corporation Terahertz frequency domain spectrometer with controllable phase shift
TWI369816B (en) * 2009-07-24 2012-08-01 Acer Inc Shorted monopole antenna
US9400214B1 (en) 2013-03-15 2016-07-26 Joseph R. Demers Terahertz frequency domain spectrometer with a single photoconductive element for terahertz signal generation and detection
US9103715B1 (en) 2013-03-15 2015-08-11 Joseph R. Demers Terahertz spectrometer phase modulator control using second harmonic nulling
EP2806497B1 (en) * 2013-05-23 2015-12-30 Nxp B.V. Vehicle antenna
US9086374B1 (en) 2014-04-25 2015-07-21 Joseph R. Demers Terahertz spectrometer with phase modulation and method
US9404853B1 (en) 2014-04-25 2016-08-02 Joseph R. Demers Terahertz spectrometer with phase modulation
US9239264B1 (en) 2014-09-18 2016-01-19 Joseph R. Demers Transceiver method and apparatus having phase modulation and common mode phase drift rejection
US9429473B2 (en) 2014-10-16 2016-08-30 Joseph R. Demers Terahertz spectrometer and method for reducing photomixing interference pattern
US10206649B2 (en) * 2015-12-29 2019-02-19 Analogic Corporation Data transfer across a rotating boundary of a computed tomography imaging apparatus
CA3140866A1 (en) 2019-05-17 2020-11-26 Aclara Technologies Llc Multiband circular polarized antenna arrangement
TWI897765B (zh) * 2024-12-13 2025-09-11 智易科技股份有限公司 天線裝置

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FR2718292B1 (fr) * 1994-04-01 1996-06-28 Christian Sabatier Antenne d'émission et/ou de réception de signaux électromagnétiques, en particulier hyperfréquences, et dispositif utilisant une telle antenne.
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JP3114605B2 (ja) * 1996-02-14 2000-12-04 株式会社村田製作所 表面実装型アンテナおよびこれを用いた通信機
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Also Published As

Publication number Publication date
IL131558A0 (en) 2001-01-28
CA2282611A1 (en) 1998-09-03
DE19707535A1 (de) 1998-08-27
ATE223621T1 (de) 2002-09-15
AU6724398A (en) 1998-09-18
JP2001513283A (ja) 2001-08-28
CA2282611C (en) 2005-11-15
DE19880222D2 (de) 2000-06-15
DE59805415D1 (de) 2002-10-10
KR20000075673A (ko) 2000-12-26
WO1998038694A1 (de) 1998-09-03
EP0965152A1 (de) 1999-12-22
US6304219B1 (en) 2001-10-16

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