EP3005476A1 - Kompakte mehrstufige antenne - Google Patents

Kompakte mehrstufige antenne

Info

Publication number
EP3005476A1
EP3005476A1 EP14727501.0A EP14727501A EP3005476A1 EP 3005476 A1 EP3005476 A1 EP 3005476A1 EP 14727501 A EP14727501 A EP 14727501A EP 3005476 A1 EP3005476 A1 EP 3005476A1
Authority
EP
European Patent Office
Prior art keywords
radiating element
ground plane
portions
compact multi
antenna according
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.)
Granted
Application number
EP14727501.0A
Other languages
English (en)
French (fr)
Other versions
EP3005476B1 (de
Inventor
Jean-Philippe Coupez
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.)
IMT Atlantique Bretagne
Original Assignee
IMT Atlantique Bretagne
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 IMT Atlantique Bretagne filed Critical IMT Atlantique Bretagne
Publication of EP3005476A1 publication Critical patent/EP3005476A1/de
Application granted granted Critical
Publication of EP3005476B1 publication Critical patent/EP3005476B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
    • 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

Definitions

  • the invention relates to radio frequency antennas including those that can be embedded in portable telecommunications devices.
  • the antenna is an essential element of a portable telecommunication device.
  • the metallic patterns in these structures typically have fractional dimensions of the operating wavelength (eg, half-wave structure, quarter-wave structure, etc.) so that they still remain clutter-free. particularly important.
  • the invention proposes a compact antenna solution that is easily achievable.
  • the invention proposes a compact multi-level antenna comprising: a ground plane; a radiating element comprising n> 2 portions extending in n> 2 parallel planes in a planar pattern, the planes defining a volume above the ground plane, the radiating element comprising a first end connected to the ground plane and a second end ending in an open circuit.
  • the portions are arranged in planes parallel to each other parallel to the ground plane;
  • the portions are arranged in planes parallel to each other perpendicular to the ground plane;
  • the radiating element comprises portions of radiating elements for connecting the portions extending in parallel planes, the radiating element thus forming in side slices of the volume defined by the planes;
  • an excitation probe capable of supplying the antenna, the excitation probe comprising a central core connected to the radiating element and an external conductor connected to the ground plane;
  • planar pattern according to which the portion extends is selected from the following group: meanders, spiral, sinusoid, teeth, chevrons;
  • the radiating element comprises between 2 and 10 portions, typically 5 portions; the radiating element is a wire of section between 0.1 mm 2 and 5 mm 2 , typically 1 mm 2 ;
  • the radiating element is a metal strip of fixed or variable width continuously or in stages with increasing this width from the first end to the second end, said width being between 0.5 mm and 10 mm, typically 2.5 mm for a fixed width and thickness between 10 ⁇ and 500 ⁇ , typically 50 ⁇ ;
  • the structure of the antenna is simple because of the use of a radiating element which is folded.
  • the folded radiating element gives the antenna a compact structure.
  • FIG. 1 illustrates a compact multi-level antenna according to a first embodiment of the invention
  • FIG. 2 illustrates a compact multi-level antenna according to a second embodiment of the invention
  • FIG. 3 illustrates a compact multi-level antenna according to a third embodiment of the invention
  • FIG. 4 illustrates a compact multi-level antenna according to a fourth embodiment of the invention
  • FIGS. 5a to 5e illustrate various form factors for the radiating element
  • a compact multi-level antenna according to a first embodiment comprises a ground plane 10 and a radiating element 20 disposed above a ground plane 10.
  • the planes define a volume V above the ground plane 10.
  • Each portion 21, 22, 23 is connected to the portion of the plane immediately above and / or below.
  • the radiating element 20 further comprises a first end 2 connected to the ground plane 10 and a second end 2 'which terminates in an open circuit.
  • the radiating element comprises, in addition to the portions, several segments 200 (n sections) of radiating elements for interconnecting the portions that extend in the parallel planes.
  • each section 200 provides the electrical connections between each portion 21, 22, 23 of radiating element.
  • the radiating element 20 is in one piece and the dimensions of the different portions 21, 22, 23 are such that the electrical character of inductive nature is preferred.
  • an excitation probe 100 (coaxial type) comprising a central core 102 connected to the radiating element 20 and an external conductor 101 connected to the ground plane 10.
  • the radiating element may be a wire of section between 0.1 mm 2 and 5 mm 2 , typically 1 mm 2 .
  • the radiating element may be a metal strip of width, fixed or variable continuously or in stages with increasing this width from the first end 2 to the second end 2 ', between 0.5 mm and 10 mm. mm, typically 2.5 mm for a fixed width and thickness between 10 ⁇ and 500 ⁇ , typically 50 ⁇ .
  • the ribbon can be obtained by cutting or etching a metal film.
  • each radiating element portion 20 has a meandering planar pattern.
  • the planes define a volume V above the ground plane 10.
  • the radiating element 30 comprises a first end 3 connected directly to the ground plane 10 and a second end 3 'which terminates in an open circuit.
  • the radiating element 30 comprises, in addition to the portions, several sections 300 (n sections) of radiating elements for interconnecting the portions. which extend in parallel planes.
  • each section 300 provides the electrical connections between each portion 31, 32, 33 of radiating element.
  • the planes define a volume V above the ground plane 10.
  • the radiating element 40 comprises a first end 4 connected directly to the ground plane 10 and a second end 4 'which terminates in an open circuit.
  • the portions extend according to the following alternation: a first plane 510 perpendicular to the ground plane 10, a second plane 520 perpendicular to the ground plane 10 and perpendicular to the first plane 510, a third parallel plane 530 at the ground plane 10 and perpendicular to the first 510 and second planes 520, a fourth plane 540 perpendicular to the ground plane 10 and perpendicular to the third plane 530, a fifth plane 550 parallel to the ground plane 10 and perpendicular to the fourth plane 540.
  • the radiating element 50 comprises a first end 5 connected directly to the ground plane 10 and a second end 5 'which terminates in an open circuit.
  • the radiating element 50 consists in particular of portions in the form of meanders.
  • the total length of the radiating element as well as the shape of each portion make it possible to adjust the value of the operating frequency of the compact multi-level antenna.
  • planar pattern according to which the portion extends is selected from the following group: meanders (see Fig. 5a), teeth (see Fig. 5b), sinusoid (see Fig. 5c), spiral (see Fig. 5d), or rafters (see Figure 5e). More generally, all the geometries providing a small footprint of the compact multi-level antenna can be envisaged.
  • each portion is folded to provide the desired form factor (meanders, spiral, teeth, sinew, or chevrons).
  • the spaces between the successive empty planes can be filled by dielectric materials, which, in a privileged manner, will be selected with relative permittivities of very low value, a priori as close as possible to 1, and dielectric losses as small as possible (tg ( ⁇ ) "0).
  • An antenna according to the first embodiment illustrated in FIG. 1 has been realized and tested.
  • the measured operating frequency is 151.0 MHz, with an adjustment level of less than -20 dB at this frequency, for a reference impedance value of 50 ⁇ .
  • the width of the bandwidth (for a value of the adaptation level less than -10 dB) is, in this case, of the order of 1.8 MHz.
  • This radiating element is, moreover, contained in a parallelepipedal volume of dimensions 50x50x22mm 3 . Given the operating frequency of 151.0 MHz, the largest dimension of the antenna (a value of 50mm) is then of the order of ⁇ / 40, which leads to extreme compactness.

Landscapes

  • Details Of Aerials (AREA)
  • Waveguide Aerials (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
EP14727501.0A 2013-05-31 2014-05-30 Mehrschichtige kompaktantenne Active EP3005476B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1355019A FR3006503B1 (fr) 2013-05-31 2013-05-31 Antenne compacte multi-niveaux
PCT/EP2014/061266 WO2014191554A1 (fr) 2013-05-31 2014-05-30 Antenne compacte multi-niveaux

Publications (2)

Publication Number Publication Date
EP3005476A1 true EP3005476A1 (de) 2016-04-13
EP3005476B1 EP3005476B1 (de) 2021-07-14

Family

ID=49546491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14727501.0A Active EP3005476B1 (de) 2013-05-31 2014-05-30 Mehrschichtige kompaktantenne

Country Status (7)

Country Link
US (1) US10069198B2 (de)
EP (1) EP3005476B1 (de)
KR (1) KR102161976B1 (de)
CN (1) CN105659433B (de)
FR (1) FR3006503B1 (de)
HK (1) HK1223197A1 (de)
WO (1) WO2014191554A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107732420B (zh) * 2017-10-27 2024-03-08 景昱医疗科技（苏州）股份有限公司 一种天线、植入式医疗器械及植入式医疗系统
EP3503294A1 (de) * 2017-12-22 2019-06-26 Institut Mines Telecom - IMT Atlantique - Bretagne - Pays de la Loire Konfigurierbare mehrbandantennenanordnung mit einer multielementstruktur und designverfahren dafür
US12057626B2 (en) * 2022-07-01 2024-08-06 Garrity Power Services Llc Planar broad-band transmitter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1912280A3 (de) * 2003-02-19 2008-10-22 Fractus, S.A. Miniaturantenne mit volumetrischer Struktur
US6856288B2 (en) * 2003-04-28 2005-02-15 Bae Systems Information And Electronic Systems Integration Inc. Ferrite loaded meander line loaded antenna
US7525489B2 (en) * 2004-12-07 2009-04-28 Sony Ericsson Mobile Communications Ab Digital video broadcast-handheld (DVB-H) antennas for wireless terminals
US7671706B2 (en) * 2006-04-14 2010-03-02 Murata Manufacturing Co., Ltd High frequency multilayer bandpass filter
US20130120200A1 (en) * 2011-02-17 2013-05-16 Ethertronics, Inc Multi leveled active antenna configuration for multiband mimo lte system
GB2491447B (en) * 2010-03-24 2014-10-22 Murata Manufacturing Co RFID system
US8620449B2 (en) * 2010-06-30 2013-12-31 Medtronic, Inc. Implantable medical device antenna
CN103022731A (zh) * 2012-11-28 2013-04-03 北京中欧美经济技术发展中心 多频圆极化层叠式微带天线

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014191554A1 *

Also Published As

Publication number Publication date
US20160104933A1 (en) 2016-04-14
EP3005476B1 (de) 2021-07-14
CN105659433A (zh) 2016-06-08
FR3006503A1 (fr) 2014-12-05
US10069198B2 (en) 2018-09-04
CN105659433B (zh) 2019-03-15
KR20160051694A (ko) 2016-05-11
FR3006503B1 (fr) 2017-02-24
HK1223197A1 (zh) 2017-07-21
KR102161976B1 (ko) 2020-10-06
WO2014191554A1 (fr) 2014-12-04

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