WO2014087228A1 - Coupling structure of a surface-painted conductor for microwave system and manufacturing method thereof - Google Patents

Coupling structure of a surface-painted conductor for microwave system and manufacturing method thereof Download PDF

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Publication number
WO2014087228A1
WO2014087228A1 PCT/IB2013/002900 IB2013002900W WO2014087228A1 WO 2014087228 A1 WO2014087228 A1 WO 2014087228A1 IB 2013002900 W IB2013002900 W IB 2013002900W WO 2014087228 A1 WO2014087228 A1 WO 2014087228A1
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WO
WIPO (PCT)
Prior art keywords
conductor
painted
coupling structure
bore
painted layer
Prior art date
Application number
PCT/IB2013/002900
Other languages
French (fr)
Inventor
David Cornec
Chenguang Zhou
Patrick Lecam
Thomas Julien
Original Assignee
Alcatel-Lucent Shanghai Bell Co., Ltd
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 Shanghai Bell Co., Ltd filed Critical Alcatel-Lucent Shanghai Bell Co., Ltd
Publication of WO2014087228A1 publication Critical patent/WO2014087228A1/en

Links

Classifications

    • 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
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • 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

Definitions

  • the present invention relates to the field of microwave system, and particularly, to a coupling structure of a surface-painted conductor for microware system and manufacturing method thereof.
  • a first solution in the prior art realizes a direct contact between the two conductors for the coupling structure of a microware system by designing the conductors as metal conductor and connecting the two conductors using metal connecting element (such as metal rivet).
  • metal connecting element such as metal rivet
  • PIM passive inter modulation
  • a second solution applies a thin film with defined thickness between the two conducting surfaces of the conductors constructing the coupling structure to solve the present problem, but it is difficult to fix the position of the thin film.
  • the position of the thin film may be changed, so that the isolating characteristics can't be guaranteed.
  • the uneven portion such as the burrs may cause the film to be broken and thus construct a bad contact point to induce passive inter modulation issues.
  • the manufacture of such a coupling structure costs much time due the assembling of the thin film and thus the manufacture productivity of such a coupling structure is low.
  • the manufacture of the conventional coupling structure of a surface-painted conductor for microware system costs time and the manufacture productivity is low and thus the cost thereof is high. Furthermore, the radio frequency characteristics of the products produced by the conventional manufacturing method are bad and thus can't satisfy the requirements of some specified scenarios.
  • a first aspect of the invention proposes a coupling structure of a surface-painted conductor for microware system comprising: a first conductor and a second conductor configured to support the first conductor, wherein the first conductor and the second conductor are coupled with each other and at least one of the surfaces with which the first conductor and the second conductor are contacted with each other is painted with a painted layer, the painted layer is configured to form an electric isolation between the first conductor and the second conductor.
  • the coupling structure uses the painted layer with electric isolation characteristic instead of using the conventional film and the electric isolation functionality of the coupling structure could be further improved, because the position of the painted layer may not be changed any more.
  • the conventional painting is a well-known established process and thus the thickness of the painted layer could be well controlled to ensure the coupling structure with good radio frequency characteristics.
  • the thickness of the painted layer is between 20um to 200um and the material of the painted layer may be a thermosetting resin material, such as epoxy resin, epoxy-polyester mixture, triglycidyl isocyanurate (TGIC) - polyester, acrylic urethane, etc.
  • the material of the painted layer is preferably epoxy resin.
  • the first conductor is completely painted with the painted layer. It is easy to realize the painting process because it is not needed to control specified painted surface of the conductor, but to paint all the surfaces of the first conductor.
  • the coupling structure further comprises a connecting element, wherein a first bore and a second bore opposite to the first bore are located on the contact area of the first conductor and the second conductor respectively, the connecting element passes through the first bore and the second bore to couple the first conductor to the second conductor.
  • the connection of the coupling structure can be ensured in such a manner.
  • the connecting element is composed of composite material.
  • the painted layer is aided to construct an electric isolation between the first conductor and the second conductor.
  • the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
  • a second aspect of the invention proposes an antenna used in a base station, the antenna comprises a coupling structure of a surface-painted conductor for microware system according to the first aspect of the invention.
  • the antenna according to the second aspect of the invention has all the advantages that the coupling structure according to the first aspect of the invention has.
  • a third aspect of the invention proposes a method for manufacturing a coupling structure of a surface-painted conductor for microware system, comprising:
  • the coupling structure of a surface-painted conductor for microware system manufactured by the above mentioned method has good radio frequency characteristics and the producing procedure is simple and thus the cost is low.
  • the first conductor in the step (a) is completely painted with the painted layer.
  • the step (b) further comprises: opening at least one first bore and at least one second bore opposite to the at least one first bore on the first conductor and the second conductor respectively and passing at least one connecting element through the first bore and the at least one second bore to coupling the first conductor to the second conductor.
  • the connecting element is composed of composite material.
  • the painted layer is aided to form an electric isolation between the first conductor and the second conductor.
  • the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
  • the coupling structure of a surface-painted conductor for microware system and manufacturing method thereof according to the present invention have the following advantages: the time and cost needed by manufacturing are significantly reduced by using the painted layer instead of conventional using the film and thus the manufactured coupling structure is more reliable and has good radio frequency characteristics.
  • Fig. l illustrates a sectional view 100 of the coupling structure according to the present invention.
  • Fig.2 illustrates a flow diagram 200 of one embodiment of the manufacturing method according to the present invention.
  • Fig. l illustrates a sectional view 100 of the coupling structure according to the present invention.
  • a coupling structure of a surface-painted conductor for microware system comprises a first conductor 110 and a second conductor 120 configured to support the first conductor 110, wherein the first conductor 110 and the second conductor 120 are coupled with each other and at least one of the surfaces, with which the first conductor 110 and the second conductor 120 are contacted with each other, is painted with a painted layer 130, the painted layer 130 is configured to form an electric isolation between the first conductor 110 and the second conductor 120.
  • the coupling structure uses a painted layer with electric isolation characteristics instead of the conventional film and the electric isolation functionality of the coupling structure may be further improved, because the position of the painted layer may not be changed any more.
  • the conventional painting is a well-known established process and thus the thickness of the painted layer could be well controlled to ensure the coupling structure with good radio frequency characteristics.
  • the thickness of the painted layer is between 20um to 200um and the material of the painted layer may be a thermosetting resin material, such as epoxy resin, epoxy-polyester mixture, triglycidyl isocyanurate (TGIC) - polyester, acrylic urethane, etc.
  • the material of the painted layer is preferably epoxy resin.
  • the first conductor 110 is optionally painted with the painted layer 130 completely. It is easy to realize the painting process when the first conductor is painted completely, because it is not needed to control specified painted surface of the conductor, but to paint all the surfaces of the first conductor 110.
  • the coupling structure further comprises a connecting element 140, wherein a first bore and a second bore opposite to the first bore are located on the contact area of the first conductor 110 and the second conductor 120 respectively, the connecting element 140 passes through the first bore and the second bore to couple the first conductor 110 to the second conductor 120.
  • the connection of the coupling structure can be ensured in such a manner.
  • the connecting element is composed of composite material.
  • the painted layer is aided to form an electric isolation between the first conductor 110 and the second conductor 120.
  • the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
  • the radio frequency portion such as the antenna of a base station for wireless communication can also be manufactured by using the coupling structure of surface-painted conductor for microwave system shown in Fig. 1 , the antenna has all the advantages that the coupling structure according to the first aspect of the invention has.
  • step 210 painting a painted layer on at least one of the contacted surfaces between a first conductor and a second conductor supporting the first conductor, wherein the first conductor and the second conductor are used to form a coupling structure of a surface-painted conductor for microware system, and wherein the painted layer is configure to form an electric isolation between the first conductor and the second conductor;
  • step 220 coupling the first conductor and the second conductor with each other.
  • the coupling structure of a surface-painted conductor for microware system manufactured by the above mentioned method has good radio frequency characteristics and the producing procedure is simple and thus the cost is low.
  • the first conductor may be painted with the painted layer completely instead of only at least one contact surface of the contact surfaces between a first conductor for forming a coupling structure of a surface-painted conductor for microware system and a second conductor supporting the first conductor.
  • the method may further comprise the following step: opening at least one first bore and at least one second bore opposite to the at least one first bore on the first conductor and the second conductor respectively and passing at least one connecting element through the first bore and the at least one second bore to coupling the first conductor to the second conductor.
  • the connecting element is composed of composite material.
  • the painted layer is aided to form an electric isolation between the first conductor and the second conductor.
  • the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
  • the coupling structure of a surface-painted conductor for microware system and manufacturing method thereof according to the present invention have the following advantages: the time and cost needed by manufacturing are significantly reduced by using the painted layer instead of conventional using the film and thus the manufactured coupling structure is more reliable and has good radio frequency characteristics.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

The present invention relates to a coupling structure of a surface-painted conductor for microware system, comprising a first conductor; and a second conductor configured to support the first conductor, wherein the first conductor and the second conductor are coupled with each other and at least one of the surfaces with which the first conductor and the second conductor are contacted with each other is painted with a painted layer, the painted layer is configured for to form an electric isolation between the first conductor and the second conductor. The coupling structure uses the painted layer with electric isolation characteristics instead of the conventional film and the electric isolation functionality of the coupling structure could be further improved, because the position of the painted layer may not be changed any more. Furthermore, the conventional painting is a well-known established process and thus the thickness of the painted layer could be well controlled to ensure the coupling structure with good radio frequency characteristics.

Description

COUPLING STRUCTURE OF A SURFACE-PAINTED CONDUCTOR FOR MICROWAVE SYSTEM AND MANUFACTURING METHOD THEREOF
Field of the invention
The present invention relates to the field of microwave system, and particularly, to a coupling structure of a surface-painted conductor for microware system and manufacturing method thereof.
Background of the invention
Nowadays, it is generally requested to design an antenna of a communication device such as base stations having a large contact surface with good radio frequency characteristics when designing, and thus some corresponding requirements regarding radio frequency are put forward for the conductors of the coupling structure for a microware system and the assembling method thereof.
A first solution in the prior art realizes a direct contact between the two conductors for the coupling structure of a microware system by designing the conductors as metal conductor and connecting the two conductors using metal connecting element (such as metal rivet). On one hand, disassembling such a metal connecting element is not easy and the metal connecting element may be damaged once disassembled, so that the maintenance of such a coupling structure is also a problem; on the other hand, surface roughness, burrs or particles of dirt and uneven pressure distribution might result in imbalanced contact distribution resulting in risk of having increased passive inter modulation (PIM).
A second solution applies a thin film with defined thickness between the two conducting surfaces of the conductors constructing the coupling structure to solve the present problem, but it is difficult to fix the position of the thin film. The position of the thin film may be changed, so that the isolating characteristics can't be guaranteed. Further, the uneven portion such as the burrs may cause the film to be broken and thus construct a bad contact point to induce passive inter modulation issues. Moreover, the manufacture of such a coupling structure costs much time due the assembling of the thin film and thus the manufacture productivity of such a coupling structure is low.
To sum up, the manufacture of the conventional coupling structure of a surface-painted conductor for microware system costs time and the manufacture productivity is low and thus the cost thereof is high. Furthermore, the radio frequency characteristics of the products produced by the conventional manufacturing method are bad and thus can't satisfy the requirements of some specified scenarios.
Summary of the invention
In view of the prior art and the technical problem thereof identified as above, it is desirable to provide a low cost coupling structure of a surface-painted conductor for microware system and a manufacturing method thereof.
A first aspect of the invention proposes a coupling structure of a surface-painted conductor for microware system comprising: a first conductor and a second conductor configured to support the first conductor, wherein the first conductor and the second conductor are coupled with each other and at least one of the surfaces with which the first conductor and the second conductor are contacted with each other is painted with a painted layer, the painted layer is configured to form an electric isolation between the first conductor and the second conductor. The coupling structure uses the painted layer with electric isolation characteristic instead of using the conventional film and the electric isolation functionality of the coupling structure could be further improved, because the position of the painted layer may not be changed any more. Furthermore, the conventional painting is a well-known established process and thus the thickness of the painted layer could be well controlled to ensure the coupling structure with good radio frequency characteristics.
The thickness of the painted layer is between 20um to 200um and the material of the painted layer may be a thermosetting resin material, such as epoxy resin, epoxy-polyester mixture, triglycidyl isocyanurate (TGIC) - polyester, acrylic urethane, etc. The material of the painted layer is preferably epoxy resin.
In an embodiment of the invention, the first conductor is completely painted with the painted layer. It is easy to realize the painting process because it is not needed to control specified painted surface of the conductor, but to paint all the surfaces of the first conductor.
In an embodiment of the invention, the coupling structure further comprises a connecting element, wherein a first bore and a second bore opposite to the first bore are located on the contact area of the first conductor and the second conductor respectively, the connecting element passes through the first bore and the second bore to couple the first conductor to the second conductor. The connection of the coupling structure can be ensured in such a manner.
In an embodiment of the invention, the connecting element is composed of composite material. Thus the painted layer is aided to construct an electric isolation between the first conductor and the second conductor. Furthermore, the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
A second aspect of the invention proposes an antenna used in a base station, the antenna comprises a coupling structure of a surface-painted conductor for microware system according to the first aspect of the invention. The antenna according to the second aspect of the invention has all the advantages that the coupling structure according to the first aspect of the invention has.
A third aspect of the invention proposes a method for manufacturing a coupling structure of a surface-painted conductor for microware system, comprising:
a. painting a painted layer on at least one of the contacted surfaces between a first conductor and a second conductor supporting the first conductor, wherein the first conductor and the second conductor are used to form a coupling structure of a surface-painted conductor for microware system, and wherein the painted layer is configure to form an electric isolation between the first conductor and the second conductor; and
b. coupling the first conductor and the second conductor with each other.
The coupling structure of a surface-painted conductor for microware system manufactured by the above mentioned method has good radio frequency characteristics and the producing procedure is simple and thus the cost is low.
In an embodiment of the invention, in the step (a) the first conductor is completely painted with the painted layer.
In an embodiment of the invention, the step (b) further comprises: opening at least one first bore and at least one second bore opposite to the at least one first bore on the first conductor and the second conductor respectively and passing at least one connecting element through the first bore and the at least one second bore to coupling the first conductor to the second conductor.
In an embodiment of the invention, the connecting element is composed of composite material. Thus the painted layer is aided to form an electric isolation between the first conductor and the second conductor. Furthermore, the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
To sum up, compared to the conventional coupling structure and manufacturing method, the coupling structure of a surface-painted conductor for microware system and manufacturing method thereof according to the present invention have the following advantages: the time and cost needed by manufacturing are significantly reduced by using the painted layer instead of conventional using the film and thus the manufactured coupling structure is more reliable and has good radio frequency characteristics.
Brief description of drawings
Other features, objects and advantages of the invention will become more apparent upon review of the following detailed description of non-limiting embodiments taken with reference to the drawings in which:
Fig. l illustrates a sectional view 100 of the coupling structure according to the present invention; and
Fig.2 illustrates a flow diagram 200 of one embodiment of the manufacturing method according to the present invention.
Identical or similar devices (modules) or steps will be denoted by identical or similar reference numerals throughout the drawings.
Detailed description of embodiments
Fig. l illustrates a sectional view 100 of the coupling structure according to the present invention. As shown in Fig. 1 , a coupling structure of a surface-painted conductor for microware system comprises a first conductor 110 and a second conductor 120 configured to support the first conductor 110, wherein the first conductor 110 and the second conductor 120 are coupled with each other and at least one of the surfaces, with which the first conductor 110 and the second conductor 120 are contacted with each other, is painted with a painted layer 130, the painted layer 130 is configured to form an electric isolation between the first conductor 110 and the second conductor 120. The coupling structure uses a painted layer with electric isolation characteristics instead of the conventional film and the electric isolation functionality of the coupling structure may be further improved, because the position of the painted layer may not be changed any more. Furthermore, the conventional painting is a well-known established process and thus the thickness of the painted layer could be well controlled to ensure the coupling structure with good radio frequency characteristics.
The thickness of the painted layer is between 20um to 200um and the material of the painted layer may be a thermosetting resin material, such as epoxy resin, epoxy-polyester mixture, triglycidyl isocyanurate (TGIC) - polyester, acrylic urethane, etc. The material of the painted layer is preferably epoxy resin.
Furthermore as shown in Fig. 1 , the first conductor 110 is optionally painted with the painted layer 130 completely. It is easy to realize the painting process when the first conductor is painted completely, because it is not needed to control specified painted surface of the conductor, but to paint all the surfaces of the first conductor 110.
Alternatively, the coupling structure further comprises a connecting element 140, wherein a first bore and a second bore opposite to the first bore are located on the contact area of the first conductor 110 and the second conductor 120 respectively, the connecting element 140 passes through the first bore and the second bore to couple the first conductor 110 to the second conductor 120. The connection of the coupling structure can be ensured in such a manner.
The connecting element is composed of composite material. Thus the painted layer is aided to form an electric isolation between the first conductor 110 and the second conductor 120. Furthermore, the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
The radio frequency portion such as the antenna of a base station for wireless communication can also be manufactured by using the coupling structure of surface-painted conductor for microwave system shown in Fig. 1 , the antenna has all the advantages that the coupling structure according to the first aspect of the invention has.
In order to manufacture such a coupling structure, a method for manufacturing a coupling structure of a surface-painted conductor for microware system must be proposed, the method comprises the following steps:
in step 210, painting a painted layer on at least one of the contacted surfaces between a first conductor and a second conductor supporting the first conductor, wherein the first conductor and the second conductor are used to form a coupling structure of a surface-painted conductor for microware system, and wherein the painted layer is configure to form an electric isolation between the first conductor and the second conductor; and
next in step 220, coupling the first conductor and the second conductor with each other.
The coupling structure of a surface-painted conductor for microware system manufactured by the above mentioned method has good radio frequency characteristics and the producing procedure is simple and thus the cost is low.
In the step 210, the first conductor may be painted with the painted layer completely instead of only at least one contact surface of the contact surfaces between a first conductor for forming a coupling structure of a surface-painted conductor for microware system and a second conductor supporting the first conductor.
Further, in order to realize the connection between the first conductor and the second conductor more better, the method may further comprise the following step: opening at least one first bore and at least one second bore opposite to the at least one first bore on the first conductor and the second conductor respectively and passing at least one connecting element through the first bore and the at least one second bore to coupling the first conductor to the second conductor. Moreover, the connecting element is composed of composite material. Thus the painted layer is aided to form an electric isolation between the first conductor and the second conductor. Furthermore, the connecting element made of composite material will not be damaged when it is disassembled and thus the coupling structure can be disassembled without any damage. Therefore, the coupling structure can be disassembled when maintaining work is needed and then be re-assembled when the problem is fixed.
To sum up, compared to the conventional coupling structure and manufacturing method, the coupling structure of a surface-painted conductor for microware system and manufacturing method thereof according to the present invention have the following advantages: the time and cost needed by manufacturing are significantly reduced by using the painted layer instead of conventional using the film and thus the manufactured coupling structure is more reliable and has good radio frequency characteristics.
Those skilled in the art shall appreciate that the invention apparently will not be limited to the foregoing exemplary embodiments and can be embodied in other specific forms without departing from the spirit or essence of the invention. Accordingly the embodiments shall be construed anyway to be exemplary and non-limiting. Moreover apparently the term "comprising" will not preclude another element(s) or step(s), and the term "a" or "an" will not preclude plural. A plurality of elements stated in an apparatus claim can alternatively be embodied as a single element. The terms "first", "second", etc., are intended to designate a name but not to suggest any specific order.

Claims

1. A coupling structure of a surface-painted conductor for microware system, comprising:
a first conductor; and
a second conductor configured to support the first conductor, wherein the first conductor and the second conductor are coupled with each other and at least one of the surfaces with which the first conductor and the second conductor are contacted with each other is painted with a painted layer, the painted layer is configured to form an electric isolation between the first conductor and the second conductor.
2. The coupling structure according to claim 1 , characterized in that, the first conductor is completely painted with the painted layer.
3. The coupling structure according to claim 1 , characterized in that, the coupling structure further comprises a connecting element, wherein a first bore and a second bore opposite to the first bore are located on the contact area of the first conductor and the second conductor respectively, the connecting element passes through the first bore and the second bore to couple the first conductor to the second conductor.
4. The coupling structure according to claim 3, characterized in that, the connecting element is composed of composite material.
5. The coupling structure according to claim 1 , characterized in that, the material of the painted layer is epoxy resin.
6. An antenna used in a base station, characterized in that, the antenna comprises the coupling structure of a surface-painted conductor for microware system according to any one of claims 1 to 5.
7. A method for manufacturing a coupling structure of a surface-painted conductor for microware system, comprising:
a. painting a painted layer on at least one of the contacted surfaces between a first conductor and a second conductor supporting the first conductor, wherein the first conductor and the second conductor are used to form a coupling structure of a surface-painted conductor for microware system, and wherein the painted layer is configure to form an electric isolation between the first conductor and the second conductor; and
b. coupling the first conductor and the second conductor with each other.
8. The method according to claim 7, characterized in that, in the step (a) painting the first conductor with the painted layer completely.
9. The method according to claim 7, characterized in that, the step (b) further comprises:
opening at least one first bore and at least one second bore opposite to the at least one first bore on the first conductor and the second conductor respectively and passing at least one connecting element through the first bore and the at least one second bore to coupling the first conductor to the second conductor.
10. The method according to claim 9, characterized in that, the connecting element is composed of composite material.
PCT/IB2013/002900 2012-12-05 2013-11-29 Coupling structure of a surface-painted conductor for microwave system and manufacturing method thereof WO2014087228A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210514719.8A CN103855451B (en) 2012-12-05 2012-12-05 Coupled structure and its manufacture method for the surface spraying conductor of microwave system
CN201210514719.8 2012-12-05

Publications (1)

Publication Number Publication Date
WO2014087228A1 true WO2014087228A1 (en) 2014-06-12

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041289A1 (en) * 2001-11-07 2003-05-15 Ems Technologies, Inc. Linearly-polarized dual-band base-station antenna
US6650301B1 (en) * 2002-06-19 2003-11-18 Andrew Corp. Single piece twin folded dipole antenna
US20040084582A1 (en) * 2002-07-08 2004-05-06 Kralic John Frank Utility pole cross-arm and associated pole-top hardware
US20040201542A1 (en) * 2003-04-11 2004-10-14 Kathrein-Werke Kg Reflector, in particular for a mobile radio antenna
WO2008017386A1 (en) * 2006-08-10 2008-02-14 Kathrein-Werke Kg Antenna arrangement, in particular for a mobile radio base station

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202282359U (en) * 2011-10-26 2012-06-20 常州天合光能有限公司 Nonmetal easily-mounted part for photovoltaic module

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003041289A1 (en) * 2001-11-07 2003-05-15 Ems Technologies, Inc. Linearly-polarized dual-band base-station antenna
US6650301B1 (en) * 2002-06-19 2003-11-18 Andrew Corp. Single piece twin folded dipole antenna
US20040084582A1 (en) * 2002-07-08 2004-05-06 Kralic John Frank Utility pole cross-arm and associated pole-top hardware
US20040201542A1 (en) * 2003-04-11 2004-10-14 Kathrein-Werke Kg Reflector, in particular for a mobile radio antenna
WO2008017386A1 (en) * 2006-08-10 2008-02-14 Kathrein-Werke Kg Antenna arrangement, in particular for a mobile radio base station

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CN103855451B (en) 2017-07-21
CN103855451A (en) 2014-06-11

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