EP3338321A1 - Dualband antenne - Google Patents
Dualband antenneInfo
- Publication number
- EP3338321A1 EP3338321A1 EP16750155.0A EP16750155A EP3338321A1 EP 3338321 A1 EP3338321 A1 EP 3338321A1 EP 16750155 A EP16750155 A EP 16750155A EP 3338321 A1 EP3338321 A1 EP 3338321A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiator
- axis
- dual
- segment
- band antenna
- 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
Links
Classifications
-
- 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
- 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
-
- 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
- H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN]
-
- 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
- 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
- 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
- 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
- H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
Definitions
- the invention relates to a dual-band antenna for transmitting or receiving radio signals.
- An electronic device configured to communicate over a wireless communication network typically includes at least one antenna for receiving and / or transmitting radio signals.
- the electronic device can be set up to receive or transmit radio signals via a multiplicity of different frequency bands, in particular via two different frequency bands or frequency ranges.
- the device may comprise a multi-band antenna, in particular a dual-band antenna.
- Dual-band antennas often include secondary radiators (as an antenna rod or as a slit radiator) to achieve a predefined frequency characteristic and bandwidth for two different frequency bands. This is especially true for dual band antennas for the frequency bands 2.4-2.5 GHz and 5.1-5.8 GHz, i. for WLAN (Wireless Local Area Network) dual-band antennas.
- the use of secondary radiators leads to a directed emission of radio signals, and consequently to a direction-dependent radio capability of an electronic device.
- a dual band antenna for a first and a second frequency range comprises a first radiator for the first frequency range and a second radiator for the second frequency range. Furthermore, the dual-band antenna comprises a ground conductor (or ground conductor) as an opposite pole to the first and the second radiator. In this case, the first radiator and the second radiator converge in a V-shaped manner in a base point of the dual-band antenna.
- a domestic appliance in particular a household appliance, is described which comprises a communication unit for wireless communication (in particular via WLAN), wherein the communication unit has the dual-band antenna described in this document.
- FIG. 1 shows the structure and the dimensioning of an exemplary dual-band antenna
- FIG 2 is another view of the exemplary dual band antenna of Figure 1 showing the relative dimensions of the dual band antenna to one another.
- the present document is concerned with providing a dual band integrable antenna having a uniform omnidirectional behavior.
- the dual-band antenna is intended to be designed in particular for WLAN radio communication in the frequency bands around 2.4 GHz and at 5 GHz.
- FIGS 1 and 2 show the structure of an exemplary dual-band antenna 100, the o.g. Conditions fulfilled.
- the dual-band antenna comprises a ground plane 120 (or a ground plane or a ground conductor or a ground conductor) and a dual-band radiator 1 10.
- the dual-band radiator 1 10 comprises a first radiator 1 1 1 for a first frequency band (in particular for the 2.4 GHz frequency band) and a second radiator 12 for a second frequency band (in particular for the 5 GHz frequency band).
- the first and the second radiator 11 1 1, 12 12 each have specific geometries which are adapted to the properties (in particular to the bandwidth) of the respective frequency band (or frequency range).
- the radiators 1 1 1, 1 12 are arranged so that a mutual influence is reduced (minimized if possible) is.
- the antenna geometry illustrated in FIGS. 1 and 2 can be integrated into the conductive layer of a printed circuit board.
- the radiators 1 1 1, 1 12 and the ground plane 120 can be implemented as a flat conductor in a conductive layer of a printed circuit board. This makes it possible to provide a low-cost dual-band antenna 100.
- the antenna effective area on a printed circuit board can be optimally designed by the geometry of a dual-band antenna 100 shown in FIGS. 1 and 2.
- the antenna geometry has no secondary radiator in order to obtain the best possible omnidirectional characteristic.
- the first radiator 1 1 1 and the second beam 1 12 each comprise ⁇ / 4 radiators for the first and for the second frequency range (ie for the respective corresponding wavelength range).
- the respective ⁇ / 4 radiators start at the foot of 1 13 and extend over the entire (possibly curved) length of the respective radiator 1 1 1, 1 12th
- the radiators 1 1 1, 1 12 have a width which depends on the bandwidth of the respective frequency range.
- the width of a radiator 1 1 1, 1 12 typically increases with increasing bandwidth of the frequency range.
- the first radiator 1 1 1 covers the first frequency range 2.4-2.5 GHz (ie the 2.4 GHz WLAN frequency band) and the second radiator 12 1 the second frequency range 5, 1 -5.8GHz (ie the 5GHz WLAN frequency band).
- the second radiator 1 12 has a greater width than the first radiator 1 1 1.
- the oblique course of the lower or inner edge 16 of the second radiator has a positive effect on the provision of a relatively high bandwidth.
- the dual band antenna 100 of Figures 1 and 2 has no secondary radiators. Instead, as far as possible decoupling of the first radiator 1 1 1 and the second radiator 1 12 is achieved in that extend the radiator 1 1 1, 1 12 angled away from the base point 1 13 away. In this case, the first radiator 1 1 1 and the second radiator 1 12 at the foot of 1 13 form an angle 1 14, which is preferably at or about 45 °. Thus, a good decoupling of the radiator 1 1 1, 1 12 can be effected.
- a good decoupling can be achieved in that an effective propagation of the first radiator 1 1 1 starting from the foot point 1 13 (represented by a first auxiliary line 161) and an effective propagation of the second radiator 1 12 starting from the foot point 1 13 (represented by a second auxiliary line 162) are approximately perpendicular to each other (eg form an angle 164 in the range 80 ° to 100 °).
- the first radiator 1 1 1 has a greater length than the second radiator 1 12 due to the lower first frequency range.
- an end portion 1 15 of the first radiator 1 1 1 angled to position the first radiator 1 1 1 on the available space of a circuit board.
- FIG. 1 shows exemplary dimensions of the dual-band radiator from FIGS. 1 and 2.
- the distance 131 is 3.4 mm, the distance 132 5.8 mm, the distance 133 7.2 mm, the distance 134 1, 4 mm, the distance 135 3 , 5mm, the distance 141 15mm, the distance 142 17mm, the distance 143 18,8mm and the distance 144 26mm.
- the values mentioned can deviate upwards and / or downwards by 15%.
- Figure 2 shows the components 1 1 1, 1 12, 120 of the dual-band antenna 100 in an enlarged form but with correct relative dimensions to each other.
- the present document thus describes a dual-band antenna 100 for a first and for a second frequency range (or for a first and a second frequency band).
- the two frequency ranges typically do not overlap.
- the first frequency range preferably comprises the frequencies 2.4-2.5 GHz and the second frequency range preferably comprises the frequencies 5.1-5.8 GHz.
- the dual-band antenna 100 comprises a first radiator 1 1 1 for the first frequency range and a second radiator 1 12 for the second frequency range.
- the dual-band antenna 100 comprises a ground conductor 120 as a counterpole to the first and the second radiator 1 1 1, 1 12. In this case, the first radiator 1 1 1 and the second radiator 1 12 V-shaped run in a foot 13 the dual-band antenna 100 together.
- the first radiator 1 1 1 and the second radiator 1 12 converge in such a V-shape that the radiator 1 1 1, 1 12 in the foot point 1 13 form an angle 1 14, between 40 ° and 50 °, in particular at 45 °, lies.
- a particularly good decoupling of the two radiators 1 1 1, 1 12 can be achieved.
- the dual-band antenna 100 is typically set up to provide a received radio signal from the first and / or the second frequency range at the foot point 13 and / or to record a radio signal to be transmitted from the first and / or the second frequency range at the foot 13.
- the first radiator 1 1 1 and the second radiator 1 12 preferably form ⁇ / 4 radiators for a frequency from the respective frequency range.
- the radiators 1 1 1, 1 12 typically an effective length (starting from the foot point 1 13), the one quarter of the wavelength of a signal to be transmitted or received.
- a ⁇ / 4 radiator for 2.5 GHz has an effective length of approximately 30 mm and a ⁇ / 4 radiator for 5.4 GHz has an effective length of approximately 12 mm.
- the first radiator 1 1 1, the second radiator 1 12 and the ground conductor 120 are preferably arranged such that for a passing through the foot point 1 13 x-axis 151 of a Cartesian coordinate system, the first and second radiator 1 1 1, 1 12 on a first side (in Figures 1 and 2 on the upper side) and the ground conductor 120 on a second side (in Figures 1 and 2 on the lower side) of the x-axis 151 lie.
- the dual-band antenna 100 can be divided into two halves by the x-axis 151, so that the first radiator 1 1 1 and the second radiator 1 12 on one side and the ground conductor 120 on the other side the x-axis 151 are located (at least in each case to 90%, 95% or more of the surface of the radiator 1 1 1, 1 12 and the ground conductor 120).
- the first radiator 1 1 1, the second radiator 1 12 and the ground conductor 120 are preferably arranged such that for a passing through the foot point 1 13 y axis 152 of the Cartesian coordinate system of the first radiator 1 1 1 on a first page (In Figures 1 and 2 on the left side) and the second radiator 1 12 on a second side (in Figures 1 and 2 on the right side) of the y-axis 152 lie.
- the dual-band radiator 110 can be divided into two halves by the y-axis 152, so that the first radiator 1 1 1 on one side and the second radiator 12 1 on the other side of the y-axis 152 are located (at least in each case to 90%, 95% or more of the surface of the radiator 1 1 1, 1 12).
- Such an arrangement allows a good decoupling of the radiator 1 1 1, 1 12 from each other.
- the first radiator 1 1 1 and the second radiator 1 12 may each include a decoupling segment that begins at the foot of 1 13 and extending from the base point 1 13 extends obliquely away from the y-axis 152, so that the decoupling segments of the first and the second radiator 1 1 1, 1 12 V-shaped converge to the base point 13.
- the decoupling segments can have a propagation along the y-axis 152 of 7.2 mm, starting from the foot point 13.
- the decoupling segment of the first radiator 1 1 1 starting from the foot point 1 13 a propagation along the x-axis 151 of 2mm exhibit.
- the decoupling segment of the second radiator 1 12 starting from the foot point 1 13 have a propagation along the x-axis 151 of 1, 8mm.
- the stated values can deviate upwards and / or downwards by 15%.
- the first radiator 1 1 1 may further comprise a straight antenna segment which extends parallel to the x-axis 151 from the y-axis 152 away.
- the straight antenna segment starting from the decoupling segment of the first radiator 1 1 1 may have a propagation along the x-axis 151 of 15 mm and optionally a width along the y-axis 152 of 1.4 mm.
- the stated values can deviate upwards and / or downwards by 15%.
- the first radiator 1 1 1 include an angled antenna segment, which extends parallel to the y-axis 152 to the x-axis 151 back.
- an angled antenna segment By using an angled antenna segment, the space requirement of the dual-band antenna 100 can be reduced.
- the angled antenna segment starting from an edge of the straight antenna segment facing the ground conductor 120, can propagate along the y-axis 152 of 2.4 mm and proceed from an edge of the straight antenna facing away from the ground conductor 120 Segment has a propagation along the y-axis 152 of 3.8mm.
- the stated values can deviate upwards and / or downwards by 15%.
- the first radiator 1 1 in particular, a decoupling segment, a straight antenna segment and an angled antenna segment have, which line up in the order mentioned starting from the foot 13.
- bends and / or corners result at the transitions between the respective segments due to the different orientations of the segments.
- the o.g. Dimensions of the respective segments make up a ⁇ / 4 radiator for the first frequency range around 2.4 GHz.
- the first radiator 1 1 1 may comprise a plurality of segments.
- one or more of the segments of the first radiator 1 1 1 may have a bar-shaped extension, wherein the edges of the one or more segments each parallel to each other run. Due to the parallel course of the edges of the first frequency range can be adjusted in a precise manner.
- the second radiator 1 12 may have a trapezoidal antenna segment with an inner edge 1 16, which limits the trapezoidal segment on a side facing the ground conductor 120 side.
- the inner edge 1 16 extends with increasing distance from the foot point 1 13 obliquely away from the x-axis 151 away. By such an oblique course, the bandwidth of the second radiator 1 12 can be increased.
- the trapezoidal antenna segment starting from the decoupling segment of the second radiator 1 12 has a propagation along the x-axis 151 of 7.2 mm. Furthermore, the trapezoidal antenna segment on a the decoupling segment of the second radiator 1 12 side facing a width of 5.8 mm and on a side facing away from the decoupling segment of the second radiator 1 12 side have a width of 3.7mm.
- the stated values can deviate upwards and / or downwards by 15%.
- the second radiator 1 12 has a decoupling segment and a trapezoidal antenna segment, which line up in the order mentioned from the base point 13.
- the o.g. Dimensions of the respective segments result in a ⁇ / 4 radiator for the second frequency range at 5GHz.
- the second frequency range may have a larger bandwidth than the first frequency range.
- the second radiator 1 12 with respect to one of the x-axis 151 corresponding longitudinal direction may be wider than the first radiator 1 1 1.
- auxiliary lines 161, 162 for the first radiator 1 1 1 and for the second radiator 1 12 are shown.
- the auxiliary lines 161, 162 each extend in the longitudinal direction through the center of the respective radiator 1 1 1, 1 12 or a segment of the radiator 1 1 1, 1 12.
- the first auxiliary line 161 extends longitudinally centrally through the decoupling segment of the first Radiator 1 1 1.
- the second auxiliary line 162 extends longitudinally centrally through the entire second radiator 1 12.
- the two auxiliary lines 161, 162 intersect near the foot of 1 13 and form an angle 164th This Angle 164 is preferably in the range of 80 ° to 100 °, in particular at 85 ° or 90 °, in order to achieve the best possible decoupling of the radiator 1 1 1, 1 12.
- a first auxiliary line 161 which extends centrally in the longitudinal direction through the decoupling segment of the first radiator 1 1 1 in the direction uncomfortable Vietnamese Vietnamese Vietnamese 13, and a second auxiliary line 162, the center longitudinally through the second radiator 1 12 in the direction of rougeddling 1 13 extends, form an angle 164 at an intersection.
- This angle 164 may have a value of 80 ° -100 ° at the intersection to effect the best possible decoupling of the radiator 1 1 1, 1 12.
- the first radiator 1 1 1, the second radiator 1 12 and the ground conductor 120 may each comprise conductor surfaces of a printed circuit board.
- the components of the dual-band antenna 100 may be implemented as conductor surfaces of a printed circuit board.
- a cost efficient dual band antenna 100 can be provided.
- a plurality of dual band antennas 100 e.g., two dual band antennas 100
- antenna diversity can be efficiently provided.
- the present document further describes a domestic appliance, in particular a household appliance, which comprises a communication unit for wireless communication, wherein the communication unit has the dual-band antenna 100 described in this document.
- Figures 1 and 2 show a dual-band antenna 100, in which only by the use of primary radiators 1 1 1, 1 12 two different frequency bands are covered. Due to the omission of secondary radiator, the dual-band antenna 100 has a good omnidirectional behavior. Furthermore, the dual-band antenna 100 can be implemented in a cost-efficient manner on a printed circuit board.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015215987.6A DE102015215987A1 (de) | 2015-08-21 | 2015-08-21 | Dualband Antenne |
| PCT/EP2016/068653 WO2017032578A1 (de) | 2015-08-21 | 2016-08-04 | Dualband antenne |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3338321A1 true EP3338321A1 (de) | 2018-06-27 |
| EP3338321B1 EP3338321B1 (de) | 2021-06-09 |
Family
ID=56618156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16750155.0A Active EP3338321B1 (de) | 2015-08-21 | 2016-08-04 | Dualband antenne |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10516211B2 (de) |
| EP (1) | EP3338321B1 (de) |
| CN (1) | CN107925149B (de) |
| DE (1) | DE102015215987A1 (de) |
| WO (1) | WO2017032578A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI679808B (zh) * | 2018-09-10 | 2019-12-11 | 和碩聯合科技股份有限公司 | 雙饋入迴路天線結構及電子裝置 |
| DE102020209545A1 (de) * | 2020-07-29 | 2022-02-03 | BSH Hausgeräte GmbH | Mehrband-Loop-Antenne |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10119780A1 (de) * | 2001-04-23 | 2002-10-24 | Siemens Ag | Umschaltbare integrierte Mobilfunkantenne |
| US6734828B2 (en) * | 2001-07-25 | 2004-05-11 | Atheros Communications, Inc. | Dual band planar high-frequency antenna |
| 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 |
| JP2004140496A (ja) * | 2002-10-16 | 2004-05-13 | Taiyo Yuden Co Ltd | 誘電体アンテナ及びそれを内蔵する移動体通信機 |
| TWI239679B (en) * | 2004-01-20 | 2005-09-11 | Micro Star Int Co Ltd | Dual-band antenna |
| JP4149974B2 (ja) * | 2004-08-26 | 2008-09-17 | オムロン株式会社 | チップアンテナ |
| TWI242310B (en) * | 2004-12-31 | 2005-10-21 | Advanced Connectek Inc | A dual-band planar inverted-f antenna with a branch line shorting strip |
| CN100470929C (zh) * | 2005-05-31 | 2009-03-18 | 智易科技股份有限公司 | 低旁瓣双频暨宽频平面型端射天线 |
| US7265718B2 (en) * | 2006-01-17 | 2007-09-04 | Wistron Neweb Corporation | Compact multiple-frequency Z-type inverted-F antenna |
| CN101771193A (zh) * | 2008-12-30 | 2010-07-07 | 智易科技股份有限公司 | 偶极天线 |
| US20100321274A1 (en) * | 2009-06-17 | 2010-12-23 | Joymax Electronics Co., Ltd. | Multiple frequency antenna assembly |
| CN102340051A (zh) * | 2010-07-14 | 2012-02-01 | 广达电脑股份有限公司 | 双v型双频天线 |
| DE102011087278A1 (de) * | 2011-11-29 | 2013-05-29 | BSH Bosch und Siemens Hausgeräte GmbH | System für ein Hausgeräte-Energiemanagement unter Berücksichtigung eines evolutionären Mobilfunkstandards sowie zugehöriges Verfahren |
| DE102012220615A1 (de) * | 2012-11-13 | 2014-05-15 | BSH Bosch und Siemens Hausgeräte GmbH | Bedienelement für ein Haushaltsgerät |
-
2015
- 2015-08-21 DE DE102015215987.6A patent/DE102015215987A1/de not_active Withdrawn
-
2016
- 2016-08-04 WO PCT/EP2016/068653 patent/WO2017032578A1/de not_active Ceased
- 2016-08-04 EP EP16750155.0A patent/EP3338321B1/de active Active
- 2016-08-04 CN CN201680048343.2A patent/CN107925149B/zh active Active
- 2016-08-04 US US15/746,443 patent/US10516211B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015215987A1 (de) | 2017-02-23 |
| WO2017032578A1 (de) | 2017-03-02 |
| US20180205150A1 (en) | 2018-07-19 |
| CN107925149A (zh) | 2018-04-17 |
| EP3338321B1 (de) | 2021-06-09 |
| CN107925149B (zh) | 2020-07-31 |
| US10516211B2 (en) | 2019-12-24 |
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