WO2007039648A1 - Antenne - Google Patents

Antenne Download PDF

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Publication number
WO2007039648A1
WO2007039648A1 PCT/EP2006/067163 EP2006067163W WO2007039648A1 WO 2007039648 A1 WO2007039648 A1 WO 2007039648A1 EP 2006067163 W EP2006067163 W EP 2006067163W WO 2007039648 A1 WO2007039648 A1 WO 2007039648A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
feed
harness
reflector
radiating elements
Prior art date
Application number
PCT/EP2006/067163
Other languages
English (en)
Other versions
WO2007039648A9 (fr
Inventor
James Browne
Edwina Browne
Naomi Thompson
Justin Collery
Original Assignee
James Browne
Edwina Browne
Naomi Thompson
Justin Collery
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 James Browne, Edwina Browne, Naomi Thompson, Justin Collery filed Critical James Browne
Publication of WO2007039648A1 publication Critical patent/WO2007039648A1/fr
Publication of WO2007039648A9 publication Critical patent/WO2007039648A9/fr

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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/108—Combination of a dipole with a plane reflecting surface
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path

Definitions

  • This invention rentes IQ an antenna, and in particular to a so-called pattern antenna q ⁇ mp ⁇ smg a plurality of radiating elements, a feed harness eSectncalty -connected to the plurality of radiating elements and a printed circuit board on vvhich the plurality of radiating elements and tho teed harness are mounted
  • Tins is o ⁇ ten very expensive, time consuming and in some cases dangerous to do, due to Ih ⁇ fact that tho antennas may be located in remote locations such as at the lop of a communications mast.
  • Ih ⁇ present invention to provide an antenna that overcomes at least some Gt the problems associated with She prior art devices that is relatively simple to reproduce accurately and at the same time is relatively simple and cost eifeetive to manufacture.
  • an antenna comprising n plurality of radiating, elements, a feed harness ⁇ -Sectrically connected to the plurality of radialimj elements, a printed circuit board on which trr ⁇ plurality of radiating etemenis and lhe food harness are mounted, an electrically conducting casing including a reflector defining a slot, the PCB being mounted in the electrically conducting casing sn ⁇ extending through the sEot so (hat the plurality ⁇ l radiating elements are located on one side of the reflector and the fesd harness ts substantially located on the other side of tha reflector, the feed harness substantially enclosed: by and electrically isolated from the electrically conducting casing, and in whfeh the feed harness further comprises a plurality of feed tracks, each feed track being associated with one or more radiating elements, the width and length of the feed tracks being dimensioned to provide an upper side lobe suppressed, nulhfJK ⁇ d lower side
  • null filled fowor sfcle lobe radiation pattern will effectively reduce the amount of radiation from the upper lobes where it would be wasted by Mr ⁇ $ transmitted upwards and where it couSd cause interference wtih other antenna and increases the amount of radiation from the Sower side lobes %hich will improve radiation pattern particularly dose in to ih ⁇ antenna. This er ⁇ btes far more comprehensive coverage of She antenna radiation pattern.
  • an antenna in which the width and length of the feed tracks are dimensioned to provide an electrically dow ⁇ t ⁇ t ⁇ d radiation pattern.
  • TWs is a particularly simply way of providing a downlilled antenna. In particuSar, when combined with tho upper side lobe suppression, null fitted lower lobe pattern, this provides a very accurate antenna whose radiation pattern wall be predictable and will be manufactured in a simple and repeataWs fashion,
  • an antenna in which INs ⁇ idth and tengih of th ⁇ fe&d tracks are dimensioned to provide an eleel ⁇ teally dow ⁇ ttSled radiatson pattern having a downt ⁇ lt of between 1° and 11°. This is seen as providing a ussful seSo-ction of angles of tilt that will enable for a suitable antenna to be provided lhal sviSI minimise in
  • an antenna in which lhe &SectriC4iily conducting casing comprises the refl&ctor and an ef&ctncaiSy conducting channel connected thereto, the channel substantially surrounding the antenna feed harness
  • lhe &SectriC4iily conducting casing comprises the refl&ctor and an ef&ctncaiSy conducting channel connected thereto, the channel substantially surrounding the antenna feed harness
  • the antenna wiSS be compact and v ⁇ l ⁇ allow for a reSatively simpte manuf ⁇ cluring process. Furthej ⁇ tore, by haviriQ such a con struct ion of antenna, the amount of interference between the radiating elements and the feed harness will be negligible.
  • an antenna in which th® channel is closed at either end with one of a pair of end caps, each of which is constructed from an eioclrkally insulating materia!.
  • I he channel may be closed at either end with an electneaily conducting materia I forming pa't of the electrically conducting casing,
  • a provided art antenna in ⁇ hich there is provided a PCB harness mounted in the electrically conducting casing for receiving a PCB therein and holding the PCB in a fixed relationship with respect to the electrically conducting casing* This is seen as an effective way of maintaining the PCS and hence the radiating elements in a fixed relationship with respect to the casing thereby providing: a ratable devtce.
  • an antenna in which the antenna further comprises an et ⁇ ctr ⁇ mag ⁇ elically absorbing material, the eleelromagneticatiy absorbing material substantially enclosed by the electrically conducting casing.
  • the electrotrognetsca ⁇ y absorbing material is positioned between the feed harness and an inner surface of the electrically conducting easing
  • an antenna in which Uw feed harness and the radiating elements are formed on an integral pattern structure. It ⁇ s envisaged that the integral pattern structure- is deposited on the printed circuit board. Alternatively the integral pattern structure results from eSchtng
  • an antenna in which a periphery of the slot is laterally separated from the feed harness and from the printed Circuit board and in which the separator* between the periphery of the slot and the pnnted circuit board is maintained by an eiecSricalSy insulalirtg r ⁇ atenal.
  • an antenna fn W 1 JiSCh (he antenna comprises a llange oxterpdlnjj perpendicular to the plane ⁇ f ihe refleclor in lha vicinity of the slot. This is seen as a useful way of further reducing the amount of radiation passl ⁇ - ⁇ between the radiating dements and the feed harness
  • an antenna in whtch the antenna casing is substantially rectangular In cross section.
  • an antenna m which the reflector includes a curved grounded surface.
  • the reflector includes a grounded tubular surface.
  • the reflector includes a grounded canister.
  • an antenna in which there is provided at least one electrically conducting extension coupled to the reflector.
  • the electrically conducting extension may comprise a plurality of fins or alternatively may comprise a plurality of corrugations.
  • an antenna in which the antenna further comprises an electrically insulating cover, the radiating elements contained between the electrically insulating cover and the reflector.
  • Figure l is a diogramtuatic representation of an antenna according to the present invention.
  • Figure 2 is a diagrammatic representation of an antenna feed harness and a plurality ⁇ f radiating elements with 2° electrical downtilt:
  • Figure 3 is a chart showing the radiation pattern of the antenna in Figure 2;
  • Figure 4 Es a diagrammatic representation of an antenna feed harness and a plurality of radiathg elements wtlh 4° electrical downtilt;
  • Figure 5 is a chart showing the radiation pattern of lho antenna in Figure 4:
  • Figure 8 is a diagrammatic representation of an antenna food harness and a plurality of radiating elements with 3° electrical downtilt, upper side lobe suppression and null filled tower side lobes;
  • Figure 7 is a chart showing the radiation pattern of the antenna sn Figure 6;
  • Figure & is a diagrammatic representation of an antenna feed harness and a plurality of radiating elements with 5 * electrical downtili, upper side lob ⁇ suppression and nvill fflted lower side lobes;
  • Figure 10 is a diagrammatic representation of an antenna feed harness and a plurality of radiating elements wath O 1 eleclncal downtsSt;
  • Figure 11 is a diagrammatic representation of an antenna feed harness and a plurality of radiating ⁇ t ⁇ ients with 1" electrical tf ⁇ wntilt, upper side lobe suppression an ⁇ null filled Soever side lobos;
  • Figure 12 is a diagrammatic view of a PCB having bslh the fronl and rear feed harnesses and radiating etoments mounted iherecn;
  • Figure 13 is a tross-s ⁇ clnsna! view of an alternative embodiment of antenna according to the present invention.
  • Figure 14 ts a crass-secttanal view of a further alternative embodiment of antenna according Io the present invention.
  • F ⁇ tjur ⁇ 15 is a diagrammatic representation of a first construction of radiating element for use in the antenna according to the Invention
  • Ftgyr ⁇ 16 h a diagrammatic representation of another construction of radiating eSement for use in the antenna according to the invention.
  • Figure 17 is a diagrammatic representation of -an alternative construction of eiectncslly conducting casing inco-rp- ⁇ rated Jn ih ⁇ antenna according to trie invention
  • Fi-gure 18 is a diagrammatic ropfosonlation of an another alternative construction of etecttfcally conducting casing tncorporated tn the antenna aoconfmg to ihe invention;
  • Figure 19 iis a rfiagrammatic rep resenta tiers of an afndative const rueUo ⁇ of antenna according to the invention.
  • FIG 20 is a diagrammatic representation of an alternative construction of antenna according to the invention, Referring to the drawings, and Initially to Figure 1 thereof, there is shown an antenna, indicated generally by the reference numeral 1, comprising a plurality of radiating elements 3 electrically connected to a feed harness 5, the plurality of radiating elements and the feed harness being mounted on a printed circuit board (PCS) ?.
  • the antenna 1 further comprises an electrically conducting casing 9 which in turn comprises a reflector 11 defining a slot 13 through which the PCB 7 passes.
  • the plurality of rarisateng dements 3 are located on one side of the reflector 11 and the feed harness 5 is substantia ⁇ located on the other side of ths reflector 11, the feed harness S ⁇ s substantia ⁇ enclosed by and!
  • the electrically conducting casing 9 in turn further comprises art electrically conducting channel IS, op ⁇ o at both of its ends 17, 19, connected to lhe reflector 1 1, the channel 15 substantia ⁇ / surrounding ( ho antenna feed harness.
  • The- feed harness 5 comprises a plurality of feed tracks 25, each of which is associated with one or more radiating elements 3.
  • fners are shown eight separate radiating elements 3, although this is not intended to be limiting and more or less radiating elements may be used.
  • corresponding radiating elements (not shown) and a corresponding feed harness (not shown) are mounted on lhe other skie of tie PCB as would be uncSerstood in the art
  • the wkilh and length of the feed tracks are dimensioned to provide an electrically down tilted paliern. It can be seen that the length of the reed tracks leading to each of the radiating elements differs from the other radiating elements. This in turn modulates lh ⁇ phase of the signal being d& ⁇ vered to the ra dialing element which has the direct effect of Silting She resulting radiation pattern.
  • FIG. 3 of the drawings there- is shown «t chart showing the radiation pattern of the antenna in Figure 2.
  • the main lobe 31 is downtiSted with respect to the Q* line by 2" and the tower side robes 33 are below the main lobe,
  • the Upper sfde lobes 35 are above the skJe k ⁇ bes. It can be seen from the drawing that although the antenna pattern has been d ⁇ wntitted by 2 s , the upper side lobes have been accentuated which may cause problems with •adjacent antenna, Furthermore, trie power in the lower Side lobes drops oil quite qwicMy which is undesirable,
  • FIG. 4 of the drawings there is shown a diagrammatic representation of an antenna feed harness and a plurality of radiating elements with 4" electrical d ⁇ wntiit, whore like parts have been given the same reference numerals as before, Il ea-o be seen that tha wklih and length of the feed tracks 25 are dimensioned to provide an e!eclrica% downtiited pattern giving 4" of etectfi&st downti ⁇ t.
  • the length of the feed tracks to each of the radiating elements has lengthened further which alters the phase of the signal being delivered to the radiating element which has the direct effect of further tilting the resulting radiation pattern.
  • FIG. 5 of the- drawings there is shown a chart showing the radiat ⁇ on pattern of the antenna in Figure 4. It can bo seen that the main central Sobo 31 of the antenna radiation pattern is downt ⁇ ited by 4% TIi ere are fititi large upper side iobes and the power of the tower side lobes Js st ⁇ tf rei&twely low.
  • FIG. 6 there is shewn a diagrammatic representation of an antenna teed harness and a plurality Qf radiating elements with 3 * eSectrieal downt ⁇ t, upper side l ⁇ be suppresaton and: null-filled lower side lobes, where like parts have been given tho same reference numeral as before, Tho width and the length o* the feed tracks are dimensioned to control both the phase of the signal passing to the radiating elements and I he power passing to the individual radiating elements.
  • dosng so it is possible to control the radiating pa Item of the antenna and suppress the upper side Jt>bes while at tho same time ngtl-fitl the lower side tobos to a degree.
  • the upper ski ⁇ lobe suppression, null fitted fowe-r Jobts pattern is referred to as a cosecant squared or a cosecant pattern
  • ⁇ cosecant squared pattern is one whose power output varies in the- elevation pattern in the ratio one is to one over sine squared ⁇ 1 ⁇ 1/sin 1 ) ⁇ for the tower half of the pattern.
  • FIG. S there is shown a diagrammatic representation of an antenna feed harness and a plurality of radiating etc men is w ⁇ h 5* Electrical downtiJt, upper skf ⁇ lobe sup press! on and null filled tower side lobes.
  • the feed track 25 lengths and widths vary with respect Io the previous embodiments shown and this provides & 5 degree dovv ⁇ tilt to lhs ⁇ ntenna.
  • tfiagrammatrc representations ⁇ f an antenna feed harness and. a plurality of radiating eiemsnts with 0* etectri ⁇ af d ⁇ wnlilt with nult-fi ⁇ ed tobea, and r electrical downtilt with upper side t ⁇ b ⁇ suppression and null filled tower side lobes, respectively. It can be seen In parlieuSar from Figure 10 that the antenna with 0' electrical tilt and nuli-fled lobes is essentially the same about either side of a horizontal axis B.
  • Ihe front and rear f ⁇ ad harnesses and radiating efeme ⁇ is mounted th&re ⁇ n where Ii Ke parts have been given the saw reference numerals as before.
  • the PCB may be cut along a central axis, intfreoted by the letter C. and ihe front and rear feed harness overlaid one on top of Ihe others Alternatively, if (he material of Ihe PCB is pilabte, Ihe PCB may be bent along the central asis C so that ihe front feed harness substantially overlays Ihe rear t ⁇ harness. Sn the embodiment shown, there is provided a cosecant pattern with 3' of electrical dmvntilL The remaining configurations of antenna design outlined above may be constructed in a similar manner.
  • antenna according to the present invention, where l ⁇ kc parts have been given the same reference numeral ⁇ s before.
  • the antenna indicated by the reference numeral 51, further comprises a tadome or protective covering 53, a downwardly depending flange SS extending perpendicular to the jrfana of ihe reflector in the vicinity of the slot and a plurality of electrically insulating member 57 Socated intermediate the periphery of the s!ot and the PC8 7.
  • the electrically insulating members 57 maintain the separation between the periphery of the slot (and hence the electrically conducting casing) and the PCS (and the feed harness in particular) * There is further shown an electrically conducting extension 59 coupled to the reflector 11, in this instance provided by way of fins 61 The fins 61 help to direct the radiation pattern from the antenna.
  • Figure 14 fe a cross-seclie ⁇ aJ view of a further alternative embodiment of antenna, Indicated generally by the reference numeral 61, where like parts have been given ihe same reference numeral as before.
  • Tho construction is identical to the construction of Figure 13 w ⁇ h the o ⁇ coptson that the fins are repSated by a plurality of e ⁇ rrugaiions 63. in tho embodiments shown, tho entire interior of the casing i$ provided ith an electromagnetics I Sy insulating material 23.
  • the PCB and the feed harness in particular coufd be encased in tho d ⁇ ctro-magnefet ⁇ y -absorbing foam,
  • FIG. 15 there is shown a dogrommatic representation of a first construction of reflector 1 for use in tho antenna according to the invention along with g PGB 7 therethrough, the PCB ? having (he radiating elements (not shown) and fe&d harness (not shown) thereon.
  • Th ⁇ reflector comprises a grounded planar surfa&e 71 * in Figure 16 there is shown another construction of reflector for use in the antenna according Io the invention in which the reftcctor is a curved grounded surface 73, Figure 17 shews a further still alternative construction of electrically conducting casing incorporated ⁇ n the antonna ijtxordtng to the invention, in which the casing is substantia Hy circular in cross section and the reflector includes a grounded tubular surface ?5 Usually, as can be seen from the other representations, lhe antenna casing is rectangular in cross section, Referring to Figures 18, there is shown another still alternative eonstruclion of electrically conducting cassng intorp-oratei ir> the antenna according to the invention, in which me reflector and more specifically the electrically conducting casing comprises a grounded canister 77, Il is envisaged that the embodiments of electrically conducting casing shovvTi gLxjve and HI particular those with a rectangular cross* section may also
  • Figure 19 and 20 are diagrammatic representations of atl&naliwe constructions of antenna according to IKe invention in wJiieH there is shown an electrically conducting casin-g that is circular in cross-section and an et ⁇ etn&aliy conducting casing that is triangular in cross sectron, respecltvely.
  • Each of the antenna is provided with a plurality of grounded reflecting surfaces 81 and a plurality of PCBs having feed harnesses and radiating elements mounted thereon ⁇ not shown), These antennas may provide an onr ⁇ i- tSSredional signal In each of the omt ⁇ f indents described, the PCB Ss essentially an et ⁇ ctrie&lly insulating material, P dielectric lamJnate supporting *he corsductmg matenala ⁇ f iho teed harness and the radiating elements.
  • the radiating foments shown are rectangular but couSd be ⁇ lher shapes su ⁇ h as trt ⁇ ngufar or circular as would be understood in lt ⁇ e art, Sn addition to this, the radiating ot ⁇ itsents ate shewn on opposite sides of lrte PCB however it may te ctosirsbls to have the radiating elements on the same side of the PCB with the feed tracks on lhe opposite side of the PCB as Ss understood in the art of antenna manufacture. What ss important is that the antenna feed harness feed tracks 25 are ditnensionedi to alter the phase and the power to the radmtfng elements thereby Influencing the radiation pattern from the antenna,
  • the feed harness and the radiatmg elements ar ⁇ mounted on a PCB
  • the feed harness and the radiating elements are formed on an integral pattern structure.
  • the integral pattern strudur ⁇ may bo deposited on the PCS or alternatively, the integral pattern structure results from etch ing v What must b& u ⁇ dOE-stood is UuU
  • one of the main advantages of the present Invention is the relatively simple construction of the antenna that wsH allow for repeatable manufacture of a reliable, predictable antenna.
  • the antenna may be constructed In s very straightforward manner and once the patterns of the feed harness are determined, the antennas may be r ⁇ preduced on a farg ⁇ scale v.ithout requiring extensile testing of each and every singt ⁇ antenna. Furthermore, with tiho specific constructions of antenna casing, radiating elements and feed harness described, it is possibto lo provide antennas with a precise amount of predetermined tilt and also to provide antennas with upper side ⁇ b ⁇ suppression, nuMifted lower side lobe radiation patterns that will improve performance of the antenna, facilitate installation of a lilted antenna and also significantly reduce the cost of installing or modifying such an antenna,

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

Cette invention concerne une antenne (1) du type comprenant une distribution électrique d'alimentation (5) connectée électriquement à une pluralité d'éléments rayonnants (3, 3'). Les éléments rotatifs et la distribution électrique d'alimentation sont montés sur une carte de circuit imprimé (7). L'antenne comprend en outre un boîtier conducteur électriquement (9) comprenant un réflecteur (11) ayant une fente (13) formée dans celui-ci. La carte de circuit imprimé est montée dans le boîtier conducteur électriquement et traverse la fente de sorte que la pluralité d'éléments rayonnants est d'un côté de la fente et la distribution électrique d'alimentation est pratiquement de l'autre côté de la fente. Ceci réduit l'interférence entre la distribution électrique d'alimentation (5) et les éléments rayonnants (3, 3'). La distribution électrique d'alimentation compose une pluralité de pistes d'alimentation (25), dont les dimensions sont choisies pour modifier la phase et la puissance acheminées à chacun des éléments rayonnants (5). Ainsi, l'inclinaison électrique de l'antenne (1) peut être déterminée et le profil de rayonnement de l'antenne peut être amélioré pour offrir une couverture améliorée de l'antenne.
PCT/EP2006/067163 2005-10-06 2006-10-06 Antenne WO2007039648A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IES2005/0676 2005-10-06
IE20050676 2005-10-06

Publications (2)

Publication Number Publication Date
WO2007039648A1 true WO2007039648A1 (fr) 2007-04-12
WO2007039648A9 WO2007039648A9 (fr) 2007-08-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/067163 WO2007039648A1 (fr) 2005-10-06 2006-10-06 Antenne

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IE (2) IES20060733A2 (fr)
WO (1) WO2007039648A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009021550A1 (fr) * 2007-08-10 2009-02-19 James Browne Antenne polarisée double
CN109698400A (zh) * 2017-10-24 2019-04-30 惠州硕贝德无线科技股份有限公司 一种集成在手机金属侧边框的宽频5g天线

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114163A (en) * 1976-12-06 1978-09-12 The United States Of America As Represented By The Secretary Of The Army L-band radar antenna array
FR2538960A1 (fr) * 1982-12-30 1984-07-06 Thomson Csf Antenne reseau bi-fonction pour radar
EP1014491A1 (fr) * 1998-12-23 2000-06-28 Thomson-Csf Antenne a reflecteur large bande

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114163A (en) * 1976-12-06 1978-09-12 The United States Of America As Represented By The Secretary Of The Army L-band radar antenna array
FR2538960A1 (fr) * 1982-12-30 1984-07-06 Thomson Csf Antenne reseau bi-fonction pour radar
EP1014491A1 (fr) * 1998-12-23 2000-06-28 Thomson-Csf Antenne a reflecteur large bande

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
GREVING G ET AL: "A HIGH PERFORMANCE ELEVATION PHASED ARRAY ANTENNA FOR THE MLS - SYSTEM", PROCEEDINGS OF THE 21ST. EUROPEAN MICROWAVE CONFERENCE. STUTTGART, SEPT. 9 - 12, 1991, PROCEEDINGS OF THE EUROPEAN MICROWAVE CONFERENCE, TUNBRIDGE WELLS, MEP, GB, vol. VOL. 1 CONF. 21, 9 September 1991 (1991-09-09), pages 647 - 652, XP000629836, ISBN: 0-946821-37-2 *
NESIC A ET AL: "Broadband printed high gain antenna with wide angle radiation in azimuth", IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM. 2001 DIGEST. APS. BOSTON, MA, JULY 8 - 13, 2001, NEW YORK, NY : IEEE, US, vol. VOL. 1 OF 4, 8 July 2001 (2001-07-08), pages 468 - 471, XP010564128, ISBN: 0-7803-7070-8 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009021550A1 (fr) * 2007-08-10 2009-02-19 James Browne Antenne polarisée double
CN109698400A (zh) * 2017-10-24 2019-04-30 惠州硕贝德无线科技股份有限公司 一种集成在手机金属侧边框的宽频5g天线

Also Published As

Publication number Publication date
WO2007039648A9 (fr) 2007-08-09
IES20060733A2 (en) 2007-06-13
IE20060732A1 (en) 2007-09-05

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