EP2477275A1 - Antenne Patch - Google Patents

Antenne Patch Download PDF

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Publication number
EP2477275A1
EP2477275A1 EP11360006A EP11360006A EP2477275A1 EP 2477275 A1 EP2477275 A1 EP 2477275A1 EP 11360006 A EP11360006 A EP 11360006A EP 11360006 A EP11360006 A EP 11360006A EP 2477275 A1 EP2477275 A1 EP 2477275A1
Authority
EP
European Patent Office
Prior art keywords
radiating element
patch antenna
antenna
cavity
capacitive
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.)
Withdrawn
Application number
EP11360006A
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German (de)
English (en)
Inventor
Titos Kokkinos
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Lucent SAS
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 Alcatel Lucent SAS filed Critical Alcatel Lucent SAS
Priority to EP11360006A priority Critical patent/EP2477275A1/fr
Publication of EP2477275A1 publication Critical patent/EP2477275A1/fr
Withdrawn legal-status Critical Current

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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
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • 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
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
    • 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
    • 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
    • H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
    • H01Q9/0435—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave using two feed points
    • 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
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means

Definitions

  • the present invention relates to a compact patch antenna.
  • Base stations are provided which support areas of radio coverage. A number of such base stations are provided and are distributed geographically in order to provide a wide area of coverage to user equipment.
  • communications may be established between the user equipment and the base station over associated radio links.
  • Each base station typically supports a number of sectors within the geographical area of service.
  • each base station typically has multiple antennas or antenna arrays and signals sent through the different antennas are arranged to provide a sectorised approach.
  • the beam scanning requirements from antenna panels are significantly extended: larger beam scanning ranges are required in the elevation, and some applications have beam scanning requirements in the azimuth, for example, low-power small-cell base-stations for improving indoors/urban coverage and/or capacity.
  • a first aspect provides a compact patch antenna for use in an antenna array in a wireless telecommunications network, the patch antenna being operable to receive a feed signal and transform the feed signal to a radiated output signal, the compact patch antenna comprising:
  • Typical antenna arrays or panels used in modern cellular wireless telecommunications systems are 1-D, high-gain arrays employed to provide coverage across large cells, known as macro cells.
  • Such antenna arrays typically provide a main radiating beam having an azimuth beamwidth of around 65° to 90° and an elevation beamwidth of 5° to 20°. In most deployment scenarios, the beam itself is usually slightly downtilted off the broadside direction.
  • the beam scanning requirements from such arrays are typically limited; a reconfigurable 0° to 15° downtilt is usually required in the elevation plane to accurately define the radius of the cells depending upon the antenna position and the served traffic.
  • Such typical antenna arrays typically comprise high-gain (7 to 9 dBi) broadside radiators, placed adequately apart (approximately 0.8 ⁇ ) to provide large array gain values for any of the required off-broadside radiating directions (0 ° to 15 ° off broadside).
  • the first aspect recognizes that with the introduction of 4G cellular systems, the beam scanning requirements from antenna panels are significantly extended: larger beam scanning ranges are required in the elevation, and some applications have beam scanning requirements in the azimuth, for example, low-power small-cell base-stations for improving indoors/urban coverage and/or capacity. Especially in the latter cases, reconfigurable beam tilts of the order of even ⁇ 45° off broadside may be required.
  • the array gain may not be as critical to overall array design as side-lobe levels (SLL) or grating lobe levels (GLL) of the array over the whole azimuthal beam-scanning range, since the SLL and/or GLL may be the major factor determining interference experienced by user equipment connected to adjacent base-stations.
  • SLL side-lobe levels
  • GLL grating lobe levels
  • the feasibility of such beam scanning properties requires an evolution of typical antenna panels in two major directions.
  • the feeding networks of such antenna arrays may require a redesign to meet such new, much tougher to implement, requirements.
  • the high-gain, sparsely spaced radiators of typical high-power panels may be substituted by arrays able to exhibit sufficient gain and bandwidth properties, able to form compact arrays (array period ⁇ 0.5 ⁇ ) which achieve large beam-scanning ranges with reduced SLL and GLL.
  • AAA Active Antenna Arrays
  • the first aspect provides a compact antenna design suitable for use in low-power arrays meeting the beam scanning requirements of the aforementioned applications.
  • the first aspect provides patch antenna designs that incorporate an alternative mechanism to achieve antenna miniaturization (footprint reduction).
  • Embodiments offer variable miniaturization factors, which are achieved by introducing vertical walls around the patch and in close proximity with the radiating edges. These walls, that effectively form a cavity around the patch (cavity-backed patch), capacitively load the patch enabling the reduction of its resonance frequency for a given physical length. Specifically, the shorter the distance between the radiating edges of the patch and the loading walls, the greater the supported capacitance is and consequently larger miniaturization factors can be achieved.
  • the capacitive loading element comprises a wall surrounding said radiating element. Provision of loading surrounding walls serves as a convenient manner to form a capacitive gap and also provides good isolation between adjacent cavity-backed patches by suppressing both guided (surface waves) and unguided modes (radiation coupling) supported between adjacent antenna elements in an antenna array.
  • the predetermined capacitive gap is defined between an edge of the radiating element and a substantially planar surface of the capacitive loading element. Accordingly, the capacitive loading element may be vertically aligned around the radiating element. The capacitive gap may be defined between radiating edges of the radiating element and the loading element.
  • the predetermined capacitive gap is defined between a portion of a substantially planar surface of the radiating element and a substantially planar surface of the capacitive loading element. Accordingly, by allowing the loading walls not only to be vertically aligned around the patch, but also to extend horizontally above the patch, an overlapping area between radiating element and loading element can be increased and the loading capacitance may be increased, thereby allowing a greater antenna miniaturisation factor to be achieved.
  • a dielectric material is located in the predetermined capacitive gap. Accordingly, by providing a dielectric material, appropriately chosen, in the gap, the resulting capacitance can be altered. By appropriate dielectric choice, an increase of loading capacitance can be achieved and hence a greater miniaturisation.
  • the radiating element and the capacitive loading element have a substantially identical shape in cross-section.
  • the cross-section of a radiating element of a patch antenna in accordance embodiments described herein may take any appropriate shape, including, for example, rectangular, polygonal, circular and similar, and that any appropriately shaped loading element, including a loading wall can be chosen, and that the cross sectional shape of the loading element need not be identical to that of the radiating element, provided that the resulting capacitive gap is selected to achieve the desired alteration in capacitance.
  • the surrounding wall does not have to be identical with the shape of the radiating patch; it can be of any shape, provided that there are parts of the circumference of the patch that are in close proximity to the wall.
  • the differential signal feed mechanism comprises a pair of inductive feed posts.
  • the inductive feed posts comprise posts which increase in cross sectional area along their length.
  • the inductive feed posts are stepped in cross sectional area. Accordingly, use of a differential feed mechanism allows for fine control a feed signal fed to the radiating element, and allows for control of resulting impedance of the antenna. The exact shape, thickness, and position of these probes have can be properly optimized separately for each feed signal, such that their total inductance is chosen to match a loading capacitance provided by the loading element.
  • the feed signal has a wavelength of around ⁇ and the compact patch antenna has a footprint of substantially (0.5 ⁇ ) 2 .
  • the compact patch antenna has a footprint of substantially (0.5 ⁇ ) 2 .
  • Such antennas offer advantageous properties when placed in an antenna array.
  • the targeted footprint is less than (0.5 ⁇ ) 2 , or significantly less.
  • the radiating element comprises a dual polarized radiating element, operable to receive two orthogonal input signals and radiate two orthogonal output signals, the capacitive loading element being spaced from the radiating element to define a predetermined capacitive gap for each of the orthogonal signals.
  • Each of the two signal polarizations can be tuned separately by separately optimising and properly setting a distance between the loading walls and the corresponding radiating element.
  • the compact patch antenna is formed from metallised plastic. Accordingly, such antennas can be manufactured in a low-cost and fully automated fabrication process.
  • the antennas can comprise 3-D forms made of metalized plastic and may be mounted on PCBs.
  • a second aspect provides a method of forming a compact patch antenna for use in an antenna array in a wireless telecommunications network, the patch antenna being operable to receive a feed signal and transform the feed signal to a radiated output signal, the method comprising:
  • the capacitive loading element comprises a wall arranged to surround the radiating element.
  • the predetermined capacitive gap is defined between an edge of the radiating element and a substantially planar surface of the capacitive loading element.
  • the predetermined capacitive gap is defined between a portion of a substantially planar surface of the radiating element and a substantially planar surface of the capacitive loading element.
  • the method further comprises the step of locating a dielectric material in the predetermined capacitive gap.
  • the radiating element and capacitive loading element are arranged to have a substantially identical shape in cross-section.
  • the differential signal feed mechanism comprises a pair of inductive feed posts.
  • the inductive feed posts are arrange to increase in cross sectional area along their length.
  • the inductive feed posts are stepped in cross sectional area.
  • the feed signal has a wavelength of around ⁇ and the compact patch antenna is arranged to have a footprint of substantially (0.5 ⁇ ) 2 .
  • the radiating element comprises a dual polarized radiating element, operable to receive two orthogonal input signals and radiate two orthogonal output signals, the capacitive loading element is arranged to be spaced from the radiating element to define a predetermined capacitive gap for each of the orthogonal signals.
  • the method further comprises the step of forming components of the antenna from metallised plastic.
  • Base stations are provided which support areas of radio coverage. A number of such base stations are provided and are distributed geographically in order to provide a wide area of coverage to user equipment.
  • communications may be established between the user equipment and the base station over associated radio links.
  • Each base station typically supports a number of sectors within the geographical area of service.
  • each base station typically has multiple antennas or antenna arrays and signals sent through the different antennas to provide a sectorised approach.
  • Typical antenna arrays or panels used in modern cellular wireless telecommunications systems are 1-D, high-gain arrays employed to provide coverage across large cells, known as macro cells.
  • Such antenna arrays typically provide a main radiating beam having an azimuth beamwidth of around 65° to 90° and an elevation beamwidth of 5° to 20°. In most deployment scenarios, the beam itself is usually slightly downtilted off the broadside direction.
  • the beam scanning requirements from such arrays are typically limited; a reconfigurable 0° to 15° downtilt is usually required in the elevation plane to accurately define the radius of the cells depending upon the antenna position and the served traffic.
  • Such typical antenna arrays typically comprise high-gain (7 to 9 dBi) broadside radiators, placed adequately apart (approximately 0.8 ⁇ ) to provide large array gain values for any of the required off-broadside radiating directions (0° to 15° off broadside).
  • the beam scanning requirements from antenna panels are significantly extended: larger beam scanning ranges are required in the elevation, and some applications have beam scanning requirements in the azimuth, for example, low-power small-cell base-stations for improving indoors/urban coverage and/or capacity. Especially in the latter cases, reconfigurable beam tilts of the order of even ⁇ 45° off broadside may be required.
  • the array gain may not be as critical to overall array design as side-lobe levels (SLL) or grating lobe levels (GLL) of the array over the whole azimuthal beam-scanning range, since the SLL and/or GLL may be the major factor determining interference experienced by user equipment connected to adjacent base-stations.
  • the feasibility of such beam scanning properties requires an evolution of typical antenna panels in two major directions.
  • the feeding networks of such antenna arrays may require a redesign to meet such new, much tougher to implement, requirements.
  • the high-gain, sparsely spaced radiators of typical high-power panels may be substituted by arrays able to exhibit sufficient gain and bandwidth properties, able to form compact arrays (array period ⁇ 0.5 ⁇ ) which achieve large beam-scanning ranges with reduced SLL and GLL.
  • AAA Active Antenna Arrays
  • radiators used in high-power cellular base-stations are cross-polarized dipole-based elements fed against ground planes, also known as reflectors.
  • One advantage of such radiator elements is that they can be designed to be sufficiently broadband (FBW > 50%), supporting multiple frequency bands and communication standards.
  • Such radiators usually have a footprint around (0.5 ⁇ ) 2 and a profile of the order of 0.5 ⁇ in the middle of their operating band.
  • Such radiators exhibit good co-pol isolation (isolation between the co-polarized elements of two adjacent radiators) and cross-pol isolation (isolation between the two cross-polarized elements of the same radiator) under the assumption of large separation between adjacent elements (typically 0.7 ⁇ at the lower part of the operating bandwidth).
  • Another class of antennas that is a candidate for compact antenna arrays for 4G base-stations is patch antennas.
  • the footprint of a typical air-filled patch antenna is approximately (0.5 ⁇ ) 2 . Therefore, in order to be used in compact antenna arrays (arrays having an array period of less than 0.5 ⁇ ), the footprint of the patch cavity can be decreased through some kind of loading.
  • the most conventional way of loading patches can be achieved by filling of a cavity of such a patch antenna with a dielectric material, which serves to increase the electrical length that corresponds to a given physical length.
  • loading patches with dielectric materials inherently decreases the antennas operating bandwidth, decreases the overall radiation efficiency, generates surfaces waves that increase the coupling between adjacent patches and imposes limitations on the height of the resonant cavities.
  • Embodiments described herein relate to patch antenna designs that incorporate an alternative mechanism to achieve antenna miniaturization (footprint reduction).
  • Embodiments offer variable miniaturization factors, which are achieved by introducing vertical walls around the patch and in close proximity with the radiating edges. These walls, that effectively form a cavity around the patch (cavity-backed patch), capacitively load the patch enabling the reduction of its resonance frequency for a given physical length. Specifically, the shorter the distance between the radiating edges of the patch and the loading walls, the greater the supported capacitance is and consequently larger miniaturization factors are achieved.
  • a satisfactory control of input impedance for a large range of the patch heights can be achieved, allowing a matching of a reduced footprint antenna over fractional bandwidths ranging from 3% to 20%.
  • Provision of loading surrounding walls also provides good isolation between adjacent cavity-backed patches by suppressing both guided (surface waves) and unguided modes (radiation coupling) supported between adjacent antenna elements.
  • Figure 1 illustrates schematically a cross sectional side view of an antenna according to one embodiment.
  • the antenna of Figure 1 is a differentially fed, cavity-backed patch antenna.
  • a radiating patch 10 is fed through probe pairs 11.
  • the exact shape and dimensions of the inductive probe pairs assist in ensuring impedance matching of components of the antenna.
  • the patch antenna of Figure 1 is provided with surrounding walls 12, placed in close proximity to the radiating patch 10. Surrounding walls 12 operate to loading the radiating patch 10 through capacitive gaps 13.
  • FIG. 2 illustrates schematically a top view of an antenna according to one embodiment.
  • the patch antenna 20 illustrated in Figure 2 is substantially square in cross-section.
  • the cross-section of a patch antenna in accordance embodiments described herein may take any appropriate shape, including, for example, rectangular, polygonal, circular etc.
  • a surrounding wall 21 is provided, that surrounding wall 21 having the same geometrical shape, in this case, square, as the patch antenna 20.
  • the surrounding wall can take any appropriate shape either identical or not to the patch.
  • each of these pairs is feeding an orthogonal signal polarization, resulting in a dual-polarized antenna.
  • Each of the two signal polarizations can be tuned separately by separately optimising and properly setting a distance between loading walls and the corresponding radiating patches.
  • the exact resonant frequency of the horizontal polarization of the antenna illustrated in Figure 2 is tuned by properly tuning an appropriate pair of capacitive gaps 24 provided between the patch 20 and the surrounding wall 21, whilst the vertical polarization is set by properly setting a pair of gaps 25 provided between the patch 20 and the surrounding wall 21.
  • Embodiments shown in Figure 1 and Figure 2 may exhibit some limitations regarding footprint miniaturization factors that can be achieved, given that the range of the capacitance provided by simple gaps 13, 24 and 25 is also limited.
  • such a limitation may be overcome by allowing the loading walls not only to be vertically aligned around the patch, but also to extend horizontally above the patch.
  • FIG 3 illustrates schematically in cross-section, an antenna according to one embodiment.
  • an overlapping area between a patch and loading wall 31 is increased by arranging the loading wall in such a manner that it extends horizontally above the patch.
  • the loading capacitance is accordingly increased, allowing for significantly larger miniaturization factors.
  • a dielectric layer 32 may be inserted therebetween. Depending on the dielectric properties of this material, a further increase of the loading capacitance, and hence the miniaturization factor, can be achieved.
  • Figure 4 illustrates a model in three dimensions of an antenna according to one embodiment.
  • the antenna of Figure 4 has been designed to operate in the 2.6 GHz LTE band (LTE deployments in Europe).
  • an octagonal patch is used as the main radiating element.
  • the surrounding wall is also of octagonal shape.
  • the surrounding wall does not have to be identical with the shape of the radiating patch; it can be of any shape, provided that there are parts of the circumference of the patch that are in close proximity to the wall.
  • the antenna of Figure 4 is a dual-polarized antenna, polarized at +/- 45°.
  • a feeding port of one of these polarizations (+45°) has been tuned for operation in the downlink for of the band of interest (2.62-2.69 GHz) and the port of the orthogonal polarization (-45°) has been tuned for operation in the uplink for the band of interest (2.50-2.57 GHz).
  • the radiating patch has been kept perfectly symmetrical, and the loading wall has been adjusted such that the gaps between the radiating edges of the +45° polarization patch and the loading wall are larger than the gaps for the -45° polarization. In this way, the loading capacitance of the -45° polarization is larger, and the feeding port for this polarization can be tuned to resonate at a slightly lower frequency.
  • FIG. 5 is a rear view of the antenna of Figure 4 .
  • two pairs of feeding probes as described in relation to Figure 2 are depicted. The exact shape, thickness, and position of these probes have been properly optimized separately for each polarization, such that their total inductance is chosen to match a loading capacitance provided by the surrounding wall.
  • each pair of probes is fed differentially through an external differential feeding network (for example, PCB-based balun).
  • a rod depicted in the centre of the patch in Figure 5 is used, in this embodiment, to provide mechanical support for the patch and does not influence the electric performance of the antenna.
  • the footprint of the antenna shown in Figures 4 and 5 is 57mm x 57mm ( ⁇ /2 x ⁇ /2 at 2.6 GHz).
  • the profile of the patch is 10mm and the profile of the surrounding wall is 14mm.
  • Figure 6 shows the simulated S-parameters of the antenna shown in Figures 4 and 5.
  • Figure 6 illustrates that the two feeding ports (one for each pair of probes) are tuned at slightly different frequencies.
  • the -10dB bandwidth of each of these ports is approximately 150 MHz (- 5.5 %) and cross-polarization isolation is below -34 dB everywhere in the band of interest.
  • Figure 7 illustrates a 1x4 antenna array according to one embodiment.
  • the array shown in Figure 7 comprises four antenna as shown in Figures 4 and 5 .
  • the array period of the array of Figure 7 is set to 60mm ( ⁇ /2 at 2.5 GHz).
  • Figure 8 illustrates simulated S-parameters of the array elements of Figure 7.
  • Figure 8 shows that the co-polarization couplings between any pair of adjacent antenna elements in the array remain below -23 dB and do not cause any major problems in the matching of the antenna (for example, detuning). This low value may be attributed to the walls used to load the antenna elements which also contribute to the reduction of any coupling between array elements. It will thus be understood that the proposed antenna element is particularly suitable for use in compact antenna arrays.
  • such bandwidths can be achieved, for example, by increasing the profile of the antennas without altering their footprint (and thus array configuration). In such embodiments, redesign of the feeding probes (shape and position) of the patches is also required.
  • Figure 9 illustrates the radiation pattern of the 1x4 array of Figure 7 for the case that the beam is scanned at 30°. According to the radiation pattern, approximately 11dBi of gain can be delivered by the 1x4 antenna array at 30°.
  • FIG 10 shows a 3-D model of a proposed antenna according to one embodiment.
  • a radiating patch is provided in the form of a dual-polarized octagonal patch.
  • a surrounding wall of substantially square cross-section is provided.
  • the surrounding wall is extended at each corner of the square and folded over the octagonal radiating patch, thus increasing an "overlap" area between the patch and the surrounding wall. The exact size of this area and the vertical distance between the patch and the folded part of the wall acts to determine the miniaturization factors that can be achieved.
  • Figure 11 is a rear view of the antenna of Figure 10 . Similar to previously described embodiments, the shape and the position of the feeding probes are optimized to match the loading capacitance.
  • Figure 12 illustrates simulated S-parameters of the antenna of Figures 10 and 11 .
  • Figure 12 illustrates simulated S-parameters of an antenna 120mm x 120mm (0.3 ⁇ x 0.3 ⁇ at 750 MHz).
  • the profile of the antenna has been set to 50mm.
  • two signal polarizations have been tuned separately to corresponding downlink and uplink bands.
  • the return loss remains below -10dB for a bandwidth of approximately 30 MHz (approximately 4%), while the cross-polarization coupling remains below -40 dB.
  • Figure 13 shows a 2 x 3 antenna array according to one embodiment.
  • the array of Figure 13 comprises six antenna elements according to the embodiment shown in Figure 10 .
  • the array period is 140 mm (0.35 ⁇ at 750 MHz) and the total array footprint is 430 mm x 340 mm.
  • Figure 14 shows the simulated S-parameters of an antenna element located in the array of Figure 13 .
  • Figure 14 shows the simulated S-parameters of the antenna element located middle of the upper row of the array are shown in Figure 13 .
  • the coupling between the adjacent elements remains below -13 dB. This coupling value is relatively high and its impact on the input impedance of each array element cannot be considered negligible. Therefore, the elements of such an array have to be tuned in the presence of neighboring elements.
  • Antenna designs in accordance with embodiments may be employed in compact antenna arrays designed to meet beam-scanning requirements over large solid angles. Given that such applications will be much more popular within the context of 4G cellular systems, the need for such antennas is expected to grow rapidly over the next years.
  • Benefits of the proposed antenna designs include: a compact footprint, reduced coupling exhibited when used in compact arrays, and a large range of bandwidths over which they can be matched by properly setting their profiles.
  • Such features together with a low-cost and fully automated fabrication process, for example, 3-D forms made of metalized plastic and mounted on PCBs, make embodiments a promising technology for low-power antenna panels.
  • Embodiments of the proposed antenna may achieve a large range of footprint miniaturization factors which may be required to form compact antenna arrays, without the use of any dielectric materials.
  • Mechanisms used by some embodiments to achieve miniaturization enable a coupling reduction between elements of compact antenna arrays.
  • Embodiments allow a large range of bandwidth requirements (FBW ⁇ 20%) to be achieved by properly setting antenna profile together with the position and shape of the feeding probes.
  • Embodiments can be broadband, compact in size, light in weight, deliver high radiating efficiency values and can be fabricated using low-cost materials, for example, metalized plastic mounted on PCBs.
  • the proposed antenna designs have been developed within a framework for use with Active Antenna Arrays.
  • any block diagrams herein represent conceptual views of illustrative circuitry embodying the principles of the invention.
  • any flow charts, flow diagrams, state transition diagrams, pseudo code, and the like represent various processes which may be substantially represented in computer readable medium and so executed by a computer or processor, whether or not such computer or processor is explicitly shown.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP11360006A 2011-01-12 2011-01-12 Antenne Patch Withdrawn EP2477275A1 (fr)

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EP11360006A EP2477275A1 (fr) 2011-01-12 2011-01-12 Antenne Patch

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EP11360006A EP2477275A1 (fr) 2011-01-12 2011-01-12 Antenne Patch

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Cited By (12)

* Cited by examiner, † Cited by third party
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CN108666745A (zh) * 2018-04-26 2018-10-16 国动科技南京有限公司 一种基站天线单元及基站天线
WO2019076928A1 (fr) * 2017-10-17 2019-04-25 Sony Mobile Communications Inc. Antenne patch supportée par une cavité
CN110444864A (zh) * 2019-08-02 2019-11-12 华南理工大学 一种超宽带高增益毫米波差分馈电封装天线
WO2020063194A1 (fr) * 2018-09-28 2020-04-02 维沃移动通信有限公司 Dispositif terminal
WO2020063196A1 (fr) * 2018-09-28 2020-04-02 维沃移动通信有限公司 Dispositif terminal
CN111146557A (zh) * 2019-12-14 2020-05-12 中国电子科技集团公司第三十九研究所 一种轻质柔性充气可展开偶极子天线结构
CN111164831A (zh) * 2017-10-13 2020-05-15 株式会社友华 贴片天线以及车载用天线装置
CN111987431A (zh) * 2020-09-04 2020-11-24 维沃移动通信有限公司 天线结构和电子设备
WO2020233477A1 (fr) * 2019-05-22 2020-11-26 维沃移动通信有限公司 Unité d'antenne et dispositif terminal
CN112332114A (zh) * 2020-09-24 2021-02-05 网络通信与安全紫金山实验室 一种用于无线定位系统的微带阵列天线
CN115663446A (zh) * 2022-12-27 2023-01-31 京信通信技术(广州)有限公司 吸顶天线
WO2023109673A1 (fr) * 2021-12-17 2023-06-22 华为技术有限公司 Structure d'antenne et dispositif électronique

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EP1193794A2 (fr) * 2000-09-26 2002-04-03 Harada Industry Co., Ltd. Dispositif d'antenne plane
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CN111164831A (zh) * 2017-10-13 2020-05-15 株式会社友华 贴片天线以及车载用天线装置
WO2019076928A1 (fr) * 2017-10-17 2019-04-25 Sony Mobile Communications Inc. Antenne patch supportée par une cavité
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CN108666745B (zh) * 2018-04-26 2023-08-25 国动科技有限公司 一种基站天线单元及基站天线
CN108666745A (zh) * 2018-04-26 2018-10-16 国动科技南京有限公司 一种基站天线单元及基站天线
WO2020063196A1 (fr) * 2018-09-28 2020-04-02 维沃移动通信有限公司 Dispositif terminal
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US11695210B2 (en) 2018-09-28 2023-07-04 Vivo Mobile Communication Co., Ltd. Terminal device
WO2020063194A1 (fr) * 2018-09-28 2020-04-02 维沃移动通信有限公司 Dispositif terminal
WO2020233477A1 (fr) * 2019-05-22 2020-11-26 维沃移动通信有限公司 Unité d'antenne et dispositif terminal
US11973280B2 (en) 2019-05-22 2024-04-30 Vivo Mobile Communication Co., Ltd. Antenna element and terminal device
CN110444864B (zh) * 2019-08-02 2020-03-17 华南理工大学 一种超宽带高增益毫米波差分馈电封装天线
CN110444864A (zh) * 2019-08-02 2019-11-12 华南理工大学 一种超宽带高增益毫米波差分馈电封装天线
CN111146557A (zh) * 2019-12-14 2020-05-12 中国电子科技集团公司第三十九研究所 一种轻质柔性充气可展开偶极子天线结构
CN111987431B (zh) * 2020-09-04 2023-04-07 维沃移动通信有限公司 天线结构和电子设备
CN111987431A (zh) * 2020-09-04 2020-11-24 维沃移动通信有限公司 天线结构和电子设备
CN112332114A (zh) * 2020-09-24 2021-02-05 网络通信与安全紫金山实验室 一种用于无线定位系统的微带阵列天线
WO2023109673A1 (fr) * 2021-12-17 2023-06-22 华为技术有限公司 Structure d'antenne et dispositif électronique
CN115663446A (zh) * 2022-12-27 2023-01-31 京信通信技术(广州)有限公司 吸顶天线

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