Abstract
A radio frequency assembly (100) is described. The radio frequency assembly (100) comprises a radio frequency unit (102) comprising at least one unit connection member (110, 112) and at least one antenna (168), a bracket (104) comprising at least one bracket connection member (114, 116), and, at least one fastening member (108, 170). At least one of said at least one unit connection member (110, 112) and said at least one bracket connection member (114, 116) is curved. Each unit connection member (110, 112) is configured to be connectable to a respective bracket connection member (114, 116) with use of the fastening member (108, 170).
Claims
1. A radio frequency assembly (100) comprising a radio frequency unit (102) comprising at least one unit connection member (110, 112) and at least one antenna (168); a bracket (104) comprising at least one bracket connection member (114, 116), and; at least one fastening member (108, 170); wherein at least one of said at least one unit connection member (110, 112) and said at least one bracket connection member (114, 116) is curved; and wherein each unit connection member (110, 112) is configured to be connectable to a respective bracket connection member (114, 116) with use of the fastening member (108, 170).
2. The radio frequency assembly (100) according to claim 1, wherein the curved of said at least one unit connection member (110, 112) and said at least one bracket connection member (114, 116) is curved around an axis (118), wherein the axis (118) is parallel to an attachment surface (106) when the radio frequency assembly (100) is attached to the attachment surface (106).
3. The radio frequency assembly (100) according to claim 1, wherein only said at least one unit connection member (110, 112) is curved.
4. The radio frequency assembly (100) according to claim 3, wherein at least one bracket connection member (114, 116) defines a hole (120) or a slit (122), wherein the fastening member (108, 170) is configured to extend through the hole (120) or the slit (122).
5. The radio frequency assembly (100) according to claim 4, wherein the hole (120) is formed as a keyhole to enable one of said at least one fastening member (108, 170) to enter through a wide part of the hole (120) and engage with a narrow part of the hole (120).
6. The radio frequency assembly (100) according to claim 3, wherein each unit connection member (110, 112) comprises at least one flange (132), wherein the flange (132) extends along the unit connection member (110, 112), and wherein the fastening member (108, 170) is configured to be engagable with the flange (132).
7. The radio frequency assembly (100) according to claim 3, wherein each unit connection member (110, 112) comprises a groove (134, 144) extending along the unit connection member (110, 112), wherein the fastening member (108, 170) is configured to be engagable with the groove (134, 144).
8. The radio frequency assembly (100) according to claim 7, wherein the flange (132) is arranged in the groove (134, 144).
9. The radio frequency assembly (100) according to claim 8, wherein two parallel flanges (132, 138, 140, 146) are arranged in each groove (134, 144), wherein each fastening member (108, 170) comprises a slider (142, 142″) slidably configured in each groove (134, 144) and a connector (206, 206″), wherein the connector (206, 206″) is configured to engage with the bracket connection member (114, 116) and is connectable to the slider (142, 142″), and wherein the slider (142, 142″) and the connector (206, 206″) are configured to attach the bracket connection member (114, 116) to the unit connection member (110, 112).
10. The radio frequency assembly (100) according to claim 1, wherein the bracket (104) is configured to be attached to an attachment surface (106) using at least one screw.
11. The radio frequency assembly (100) according to claim 1, wherein the bracket (104) comprises at least one slot (150) or indentation (152) for a band (154) for attachment of the bracket (104) to an attachment surface (106) of a pole (156).
12. The radio frequency assembly (100) according to claim 11, wherein the bracket (104) defines a contact surface (158), wherein the bracket (104) is configured to be in contact with the attachment surface (106) of the pole (156) along the contact surface (158), wherein a contact surface indentation (160) is arranged in the contact surface (158) of the bracket (104), and wherein the contact surface indentation (160) is sufficiently large for at least two bands (154) to be arranged in the contact surface indentation (160) adjacent to each other along the longitudinal axis (178) of the pole (156).
13. The radio frequency assembly (100) according to claim 10, further comprising adjustment screws (162, 164) at one end of the bracket (104), wherein the adjustment screws (162, 164) are configured to extend an adjustable distance out from the side of the bracket (104) facing the attachment surface (106), in order to adjust the angle between the radio frequency unit (102) and the attachment surface (106) by adjustment of the adjustment screws (162, 164).
14. The radio frequency assembly (100) according to claim 1 wherein the radio frequency unit (102) is configured to be attached to an attachment surface (106) with the longitudinal axis (166) in an angle to the attachment surface (106), wherein the angle is in the interval 0-10°.
Description
SHORT DESCRIPTION OF THE DRAWINGS
[0031] FIG. 1 shows schematically a radio frequency assembly being attached to a pole.
[0032] FIG. 2 shows schematically in a perspective view a radio frequency assembly comprising a radio frequency unit, a bracket and a fastening member.
[0033] FIG. 3a shows schematically in cross section the radio frequency unit of FIG. 2 in cross section.
[0034] FIG. 3b is a schematic plan view of the radiofrequency unit of FIG. 2.
[0035] FIG. 4 shows in more detail one of the unit connection members and one of the bracket connection members in the radio frequency assembly of FIGS. 2 and 3.
[0036] FIG. 5 shows in more detail in cross section one of the unit connection members and one of the bracket connection members in the radio frequency assembly of FIGS. 2, 3 and 4.
[0037] FIG. 6 is a perspective view of a radio frequency assembly according to an alternative embodiment.
[0038] FIG. 7 is a perspective view of a radio frequency assembly according to an alternative embodiment.
[0039] FIG. 8 shows schematically the radio frequency assembly according to FIGS. 2-4 being attached to a pole, wherein the radio frequency assembly is attached in an angle to the pole.
[0040] FIG. 9 shows schematically the radio frequency assembly according to FIGS. 2-4, wherein the bracket is not attached to the radio frequency unit.
DETAILED DESCRIPTION
[0041] In the following detailed description of embodiments of the invention the same reference numeral will be used for the corresponding feature in the different drawings. The drawings are not drawn to scale.
[0042] FIG. 1 shows schematically a radio frequency assembly 100 attached to a pole 156. The radio frequency assembly 100 comprises a radio frequency unit 102 comprising an antenna 168, a bracket 104, a first fastening member 108 and a second fastening member 170. The radio frequency unit also comprises an integrated radio unit 172. The radio frequency unit 102 comprises a first unit connection member 110 and a second unit connection member 112. The bracket 104 comprises a first bracket connection member 114 and a second bracket connection member 116. The bracket is connected to a pole 156 using bands 154. The pole comprises a longitudinal axis 178 and an attachment surface 106. The radio frequency unit 102 comprises a longitudinal axis 166. The longitudinal axis 166 of the radio frequency unit 102 coincides with an axis 118. The axis 118 is parallel to the attachment surface 106 of the pole 156. The first unit connection member 110 and the second unit connection member 112 are curved around the axis 118. The first unit connection member 110 is connected to the first bracket connection member 114 with use of the first fastening member 108 and the second fastening member 170.
[0043] The first bracket connection member 114 is connected to the first unit connection member 110 and the second bracket connection member 116 is connected to the second unit connection member 112, in a first position in FIG. 1. The first bracket connection member 114 may be moved along the first unit connection member 110 and the second bracket connection member 116 may be moved along the second unit connection member 112 to a second position (not shown). As the first unit connection member 110 and the second unit connection member 112 are curved the angle of the radio frequency unit 102 will change between the first and the second position. In this way the azimuth angle of the antenna in the radio frequency unit is adjustable.
[0044] FIG. 2 shows schematically in a perspective view a radio frequency assembly 100 comprising a radio frequency unit 102, a bracket 104, a first fastening member 108 and a second fastening member 170. The first bracket connection member 114 defines a hole 120. The hole 120 is formed as a keyhole. The second bracket connection member 116 defines a slit 122 which is open from the top in the figure. The first fastening member 108 comprises a first screw 126 with a first screw head 124. The second fastening member 170 comprises a second screw 180 with a second screw head 182. The side of the bracket 104 facing the attachment surface 106 (FIG. 1) defines a contact surface 158. The bracket 104 is configured to be in contact with the attachment surface 106 (FIG. 1) of the pole 156 (FIG. 1) along the contact surface 158. Contact surface indentations 160 are configured in the contact surface 158 of the bracket 104. The contact surface indentations 160 are sufficiently large for at least two bands 154 (FIG. 1) to be arranged in each contact surface indentation 160 adjacent to each other along the longitudinal axis 178 of the pole 156 (FIG. 1).
[0045] Also shown in FIG. 2 are adjustment screws 162, 164, at one end of the bracket 104. The adjustment screws 162, 164, are configured to extend an adjustable distance out from the side of the bracket 104 facing the attachment surface 106 (FIG. 1), in order to adjust the angle between the radio frequency unit 102 and the attachment surface 106 by adjustment of the adjustment screws 162, 164. The radio frequency unit 102 is configured to be attached to an attachment surface 106 (FIG. 1) with the longitudinal axis 166 in an angle to the attachment surface 106. The angle is adjustable in the interval 0-10° using the adjustment screws 162, 164.
[0046] FIG. 3a shows schematically in cross section the radio frequency unit 102 of FIG. 2. FIG. 3b is a schematic plan view of the radiofrequency unit 102 of FIG. 2. In FIGS. 3a and 3b is more clearly seen that the first unit connection member 110 comprises a first groove 134, extending along the first unit connection member 110. The first fastening member 108 is configured to be engagable with the first groove 134. Two parallel flanges 132, 138, are arranged in the first groove 134. The first fastening member 108 comprises a first slider 142, slidably configured in the first groove 134, and a first connector 206, which is the first screw 126 with the first screw head 124. The first connector 206, in the form of the first screw 126 is connectable to the first slider 142. The first connector is configured to engage with the first bracket connection member 114. In this way the first slider 142 and the first connector 206 are configured to attach the first bracket connection member 114 to the first unit connection member 110. Correspondingly, the second unit connection member 112 comprises a second groove 144, extending along the second unit connection member 112. The second fastening member 170 is configured to be engagable with the second groove 144. Two parallel flanges 140, 146, are arranged in the second groove 144. The second fastening member 170 comprises a second slider 142′, slidably configured in the second groove 144, and a second connector 206′, which is the second screw 180 with the second screw head 182. The second connector 206′, in the form of the second screw 180 is connectable to the second slider 142′. The second connector 206′ is configured to engage with the second bracket connection member 116. In this way the second slider 142′ and the second connector 206′ are configured to attach the second bracket connection member 116 to the second unit connection member 112. Also shown in FIG. 3a and FIG. 3b is a foldable handle 300 which may be used to carry the assembled radio frequency assembly 100. When the handle 300 is not used it may be folded to the position shown in FIG. 3a and FIG. 3b.
[0047] As is most clearly shown in FIG. 3b the first bracket connection member 114 defines a hole 120 while the second bracket connection member 116 defines a slit 122. The hole 120 is formed as a keyhole to enable the first screw head 124 of the first screw 126 to enter through a wide part of the hole 120 and engage with a narrow part of the hole 120. In FIG. 3a and FIG. 3b the first screw head 124 is in engagement with the narrow part of the hole 120. The second screw head 182 is in engagement with the slit 122.
[0048] In FIG. 3b is also shown attachment holes 306. Attachment screws (not shown) are can be arranged through the attachment holes 306 for attachment of the bracket 104 to an attachment surface 106 (FIG. 1).
[0049] The bracket 104 may be attached to the attachment surface using bands 154 (FIG. 1) such as steel bands. The bracket 104 comprises slots 150 for a band 154 for attachment of the bracket 104 to an attachment surface 106 (FIG. 1) of a pole 156 (FIG. 1). The bracket 104 also comprises an indentation 152 for a band 154 for attachment of the bracket to an attachment surface. It is preferable to use the slots 150 for attachment of the bracket to the attachment surface.
[0050] FIG. 4. shows in more detail the second unit connection member 112 and the second bracket connection member 116 in the radio frequency assembly of FIGS. 2 and 3. The flanges 140, 146, are more clearly seen in FIG. 4. Also the second screw head 182, the slit 122 and the slots 150 are more clearly seen in FIG. 4. The bracket 104 defines a contact surface 158. The bracket 104 is configured to be in contact with the attachment surface 106 (FIG. 1) of the pole 156 (FIG. 1) along the contact surface 158. A contact surface indentation 160 is arranged in the contact surface 158 of the bracket 104. The contact surface indentation 160 is sufficiently large for at least two bands 154 (FIG. 1) to be arranged in the contact surface indentation 160 adjacent to each other along the longitudinal axis 178 (FIG. 1) of the pole 156 (FIG. 1). The bracket 104 may be attached to an attachment surface using bands 154 (FIG. 1) extending through the slots 150. Bands 154 (FIG. 1) attaching other radio frequency assemblies 100 to the pole 156 (FIG. 1), at the same height, may extend through the contact surface indentations 160. In this way it is possible to detach any one of the radio frequency assemblies irrespective of the order in which they were attached to the pole 156 (FIG. 1). By having a contact surface indentation 160 in the contact surface 158 of the bracket 104 it is possible to attach more than one radio frequency assembly 100 at the same height on the same pole 156 (FIG. 1) while still allowing the radio frequency assemblies to the detached in any order. When attaching a second radio frequency assembly 100 with a second bracket 104 after a first radio frequency assembly 100 with a first bracket 104 the band 154 is arranged in the slot 150 of the second bracket 104 and in the contact surface indentation 160 of the first bracket 104. The band 154 attaching the second bracket 104 will then not interfere with the first bracket 104 which makes it possible to detach the first bracket 104 while the second bracket 104 is still attached to the pole 156 (FIG. 1).
[0051] FIG. 5 shows in more detail in cross section the second unit connection member 112 and the second bracket connection member 116 in the radio frequency assembly of FIGS. 2, 3 and 4. The second unit connection member 112 comprises a second groove 144, extending along the second unit connection member 112. The second fastening member 170 is configured to be in engagement with the second groove 144. Two parallel flanges 140, 146, are arranged in the second groove 144. The second fastening member 170 comprises a second slider 142′, slidably configured in the second groove 144, and a second connector 206′, which is the second screw 180 with the second screw head 182. The second connector 206′, in the form of the second screw 180 is connectable to the second slider 142′. The second connector 206′ is configured to engage with the second bracket connection member 116. Also shown in FIG. 5 is a handle 300 which may be used to carry the radio frequency assembly 100.
[0052] Also shown in FIG. 5 are adjustment screws 162, 164, at one end of the bracket 104. The adjustment screws 162, 164, are configured to extend an adjustable distance out from the side of the bracket 104 facing the attachment surface 106 (FIG. 1), in order to adjust the angle between the radio frequency unit 102 and the attachment surface 106 by adjustment of the adjustment screws 162, 164. The angle is adjustable in the range 0-10°.
[0053] FIG. 6 is a perspective view of a radio frequency assembly 100 according to an alternative embodiment. In the embodiment shown in FIG. 6 the bracket 104 comprises a first bracket connection member 114 which is curved and a second bracket connection member 116 which is also curved. Each of the bracket connection members comprises two slits 308, 310. A fastening member in the form of a screw with a screwhead (not shown) is arrangable through the slits 308, 310 into the radio frequency unit 102. The screws are fixed in relation to the radio frequency unit 102 but are movable in relation to the slits 308, 310. Thus, by rotating the radiofrequency unit and the screws in relation to the slits 308, 310, the azimuth angle of the radio frequency unit is adjustable. The bracket 104 also comprises slots 150. Bands may be arranged through the slots 150 for attachment of the radio frequency unit to a pole 156 (FIG. 1).
[0054] FIG. 7 is a perspective view of a radio frequency assembly 100 according to an alternative embodiment. In the embodiment shown in FIG. 7 the radio frequency unit 102 comprise only one unit connection member 110 and one bracket connection member 114. The unit connection member 110 is in the form of a curved flange. The bracket connection member 114 is in the form of a curved slit. The unit connection member 110 is in engagement with the bracket connection member 114 in FIG. 7. The bracket 104 also comprises slots 150 for attachment of the radio frequency unit to a pole 156 using bands 154 (FIG. 1).
[0055] FIG. 8 shows schematically a radio frequency assembly 100 being attached to a pole 156. The bracket 104 of the radio frequency assembly is attached to the pole 156 with bands 154. The radio frequency assembly 100 is attached to the pole 156 so that the longitudinal axis 178 of the pole 156 is in an angle to the longitudinal axis of the radio frequency unit 102. This has been achieved by adjustment of the adjustment screws 162, 164.
[0056] FIG. 9 shows schematically the radio frequency assembly 100 according to FIGS. 2-4, wherein the bracket 104 is not attached to the radio frequency unit 102. The first slider 142 is arranged in the first unit connection member 110 and the first screw 126 is attached to the first slider 142. The second slider 142′ is arranged in the second unit connection member 112 and the second screw 180 is attached to the second slider 142′. The handle 300 is shown in its unfolded position.
[0057] When the radio frequency assembly 100 is to be installed on an attachment surface the bracket may be installed firstly together with the first slider 142, the second slider 142′, the first screw 126 and the second screw 180. The radio frequency unit 102 may then be attached to the bracket by hanging it onto the first screw 126 and the second screw 180. Finally the first screw 126 and the second screw 180 are tightened to secure the radio frequency unit 102 in the desired position on the attachment surface 106.
