1. An antenna assembly, comprising:
a feed end;
a pair of ground ends;
a first antenna connected to the feed end, the first antenna activating a high frequency band resonance mode; and
a second antenna connected to the pair of ground ends, and coupled with the first antenna to activate a low frequency band resonance mode; wherein the feed end, the pair of ground ends are parallel to each other, the feed end and the pair of ground ends are coplanar to form a coplanar-waveguide feed structure;
wherein the first antenna comprises a connecting arm, a first radiating arm, and a pair of combining portions interconnecting the connecting arm and the first radiating arm to form a closed substantially U-shaped structure.
2. The antenna assembly of claim 1, wherein the first radiating arm and the connecting arm are substantially strip-shaped and parallel to each other, a length of the connecting arm is shorter than that of the first radiating arm; each combining portion is perpendicularly connected between the first radiating arm and the connecting arm; the feed end is perpendicularly connected to a middle portion of the connecting arm.
3. The antenna assembly of claim 2, wherein each combining portion is substantially U-shaped and comprises a first combining section, a second combining section, and a third combining section, the first combining section is parallel to and spaced from the third combining section, the second combining section is perpendicularly connected between the first combining section and the third combining section; a distal end of the first combining section opposite to the second combining section is perpendicularly connected to one end of the connecting arm, a distal end of the third combining section opposite to the second combining section is perpendicularly connected to the first radiating arm.
4. The antenna assembly of claim 1, wherein the second antenna comprises a second radiating arm and a pair of radiating units, the second radiating arm is substantially strip-shaped having a length slightly longer than that of the first radiating arm, two ends of the second radiating arm are respectively connected one of the radiating units.
5. The antenna assembly of claim 4, wherein the first radiating portion is a substantially rectangular frame having an opening; the first radiating portion comprises two opposite first band sections a second band section, and a third band section opposite to the second band section, the second band section is perpendicularly connected between the first band sections, a length of the third band section is slightly shorter than that of the second band section, the third band section is perpendicularly connected to one of the first band sections and forms the opening with the other of the first band sections.
6. The antenna assembly of claim 5, wherein the second radiating portion is substantially L-shaped, the second radiating portion comprises a first radiating section and a second radiating section perpendicularly connected to the first radiating section, an end of the first radiating section opposite to the second radiating section is perpendicularly connected to an end of the third band section, an end of the second radiating section perpendicularly extends a distance along a direction opposite to the first radiating section to form one of the ground ends.
7. The antenna assembly of claim 5, wherein the connecting portion is substantially L-shaped, the connecting portion comprises a first connecting section and a second connecting section perpendicularly connected to the first connecting section, the first connecting section perpendicularly extends from an end of one of the first band sections and is collinear with the third band section, the second connecting section is perpendicularly connected to an end of the second radiating arm.
8. The antenna assembly of claim 1, further comprising a metal member positioned on the second surface, wherein the metal member is configured to electronically connect to the ground ends and provide a ground path for the antenna assembly.
9. The antenna assembly of claim 1, further comprising a carrier, wherein the carrier comprises a first surface and an opposite to the second surface, the feed end and the ground ends are positioned on the first surface.
10. An antenna assembly, comprising:
a feed end;
a pair of ground ends;
a first antenna connected to the feed end, the first antenna activating a high frequency band resonance mode; and
a second antenna connected to the pair of ground ends, and coupled with the first antenna to activate a low frequency band resonance mode; wherein the pair of ground ends are positioned at two opposite sides of the feed end and parallel to the feed end, the pair of ground ends are coplanar to form a coplanar-waveguide feed structure, the first antenna is positioned inside the second antenna;
wherein the first antenna comprises a connecting arm, a first radiating arm, and a pair of combining portions interconnecting the connecting arm and the first radiating arm to form a closed substantially U-shaped structure.
11. The antenna assembly of claim 10, wherein the first radiating arm and the connecting arm are substantially strip-shaped and parallel to each other, a length of the connecting arm is shorter than that of the first radiating arm; each combining portion is perpendicularly connected between the first radiating arm and the connecting arm; the feed end is perpendicularly connected to a middle portion of the connecting arm.
12. The antenna assembly of claim 11, wherein each combining portion is substantially U-shaped and comprises a first combining section, a second combining section, and a third combining section, the first combining section is parallel to and spaced from the third combining section, the second combining section is perpendicularly connected between the first combining section and the third combining section; a distal end of the first combining section opposite to the second combining section is perpendicularly connected to one end of the connecting arm, a distal end of the third combining section opposite to the second combining section is perpendicularly connected to the first radiating arm.
13. The antenna assembly of claim 10, wherein the second antenna comprises a second radiating arm and a pair of radiating units, the second radiating arm is substantially strip-shaped having a length slightly longer than that of the first radiating arm, two ends of the second radiating arm are respectively connected one of the radiating units.
14. The antenna assembly of claim 13, wherein the first radiating portion is a substantially rectangular frame having an opening; the first radiating portion comprises two opposite first band sections a second band section, and a third band section opposite to the second band section, the second band section is perpendicularly connected between the first band sections, a length of the third band section is slightly shorter than that of the second band section, the third band section is perpendicularly connected to one of the first band sections and forms the opening with the other of the first band sections.
15. The antenna assembly of claim 14, wherein the second radiating portion is substantially L-shaped, the second radiating portion comprises a first radiating section and a second radiating section perpendicularly connected to the first radiating section, an end of the first radiating section opposite to the second radiating section is perpendicularly connected to an end of the third band section, an end of the second radiating section perpendicularly extends a distance along a direction opposite to the first radiating section to form one of the ground end.
16. The antenna assembly of claim 14, wherein the connecting portion is substantially L-shaped, the connecting portion comprises a first connecting section and a second connecting section perpendicularly connected to the first connecting section, the first connecting section perpendicularly extends from an end of one of the first band sections and is collinear with the third band section, the second connecting section is perpendicularly connected to an end of the second radiating arm.
17. The antenna assembly of claim 10, further comprising a metal member positioned on the second surface, wherein the metal member is configured to electronically connect to the ground ends and provide a ground path for the antenna assembly.
18. The antenna assembly of claim 10, further comprising a carrier, wherein the carrier comprises a first surface and an opposite to the second surface, the feed end and the ground ends are positioned on the first surface.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A force equalizing assembly for joining a catenary cable system to a pair of track cable systems at points between support pylons in an elevated cableway system to equalize the tension between the catenary cable system and the track cable systems, comprising a system of cable encasing members for frictionally engaging cables of the catenary cable system and the track cable systems about their respective circumferences and for distributing the forces applied by the catenary cable system and the track cable systems among the catenary cable system cables and the track cable systems cables.
2. The force equalizing assembly of claim 1 wherein said system of cable encasing members comprises:
a force equalization plate having at least three parallel channels formed along the length of a surface thereof for accepting the catenary cable system in the center channels and said track cable systems in the outer channels, the channels being shaped to approximate half of the respective cable circumferences except that the ends of the channels are flared outwardly,
a clamping plate having at least three parallel channels formed along the length of a first surface thereof for accepting the catenary cable system in the center channels and said track cable systems in the outer channels, the channels being shaped to approximate the other half of the respective cable circumferences except that the ends of the channels are flared outwardly, the channeled clamping plate having a second surface opposite the first surface that is adapted for engagement by the wheels of the cable car, the second surface being elevated opposite the center channels to accommodate stresses imposed by the clamped cable assembly, and
the channeled surfaces of the force equalization plate and the clamping plate being complementary such that the plates are adaptable for bolting together through respective bores therein for frictionally locking the catenary and track cable systems within the respective channels to equalize the forces in said respective catenary and track cable systems, the respective flared ends of the channels in the assembled plates forming a frusto-conical cavity in each end of the assembly about each of said respective catenary and track cable systems for reducing wear on the cables by the ends of the plates.
3. The force equalizing assembly of claim 2 wherein said system of cable encasing members includes a plurality of bolts passing through a respective plurality of complementary bores in the force equalizing plate and the clamping plate and clamping the plates together.
4. The force equalizing assembly of claim 2 wherein the force equalization plate and the clamping plate each have six parallel channels formed along the length of the respective surfaces thereof for frictionally locking two catenary cables in the center two respective channels and four track cables in the outer four respective channels when the plates are assembled.
5. The force equalizing assembly of claim 4 wherein the surface of the clamping plate opposite the channeled surface is elevated opposite the center two channels to accommodate stresses imposed by the clamped cable assembly.
6. The force equalizing assembly of claim 1 wherein said assembly of cable encasing members comprises a plurality of spelter sockets.
7. The force equalizing assembly of claim 1 wherein said assembly of cable encasing members includes a frame with cable connections for cables connecting from angles acute to the longitudinal axis of the frame and for cables connecting parallel with the longitudinal axis of the frame for therethrough distributing forces among a catenary cable system and a pair of track cable systems.
8. The force equalizing assembly of claim 6 wherein said assembly of cable encasing members includes a frame with cable connections for cables connecting from angles acute to the longitudinal axis of the frame and for cables connecting parallel with the longitudinal axis of the frame for therethrough distributing forces among a catenary cable system and a pair of track cable systems.
9. The force equalizing assembly of claim 7 wherein said frame comprises:
a base frame including an elongated plate with U-shaped ends for connecting the catenary cable system cables to each end,
a plurality of askew connection plates attached to vertical faces of the elongated plate of said base frame at acute angles to the longitudinal axis of said base frame for connecting the track cable systems cables, and
a plurality of cross members extending from the faces of the elongated plate of said base frame on opposite faces of the elongated plate for carrying wheel support rails at outer ends of said cross members.
10. The force equalizing assembly of claim 9 wherein said frame further comprises a plurality of bracing bars extending perpendicularly from said cross members and between said cross members for laterally supporting said cross members.
11. The force equalizing assembly of claim 9 wherein the respective U-shaped ends of said base frame include legs upon which the cable connection are made up, the legs having different lengths to provide clearance between the connections of each of the cables of the catenary cable system to the legs.
12. The force equalizing assembly of claim 9 wherein each leg of the U-shaped ends of said base frame has a hole to accept a pin of a connection that is connected to a cable of the catenary cable system.
13. The force equalizing assembly of claim 11 wherein each leg of the U-shaped ends of said base frame has a hole to accept a pin of a connection that is connected to a cable of the catenary cable system.
14. The force equalizing assembly of claim 9 wherein each askew connection plate has a hole to accept a pin of a connection that is connected to a cable of the track cables systems.
15. The force equalizing assembly of claim 9 wherein each said cross member supports a spacer plate at its end between said cross member and said wheel support rails to elevate said wheel support rails.
16. The force equalizing assembly of claim 9 wherein said wheel support rails are connected atop said frame for supporting a wheel of a vehicle traversing the elevated cableway system.
17. The force equalizing assembly of claim 16 wherein said wheel support rails have channels cut in their bottom sides to allow passage of the cables of the track cable systems through the sides of the wheel support rails.
18. The force equalizing assembly of claim 1 wherein said system of cable encasing members comprises:
a catenary cable system clamp that grasps the catenary cable system, and
a plurality of track cable system clamps that grasp the pair of track cable systems and are yieldably attached to the catenary cable system clamp, the top surface of said plurality of track cable system clamps being adapted for engagement by the wheels of a vehicle traversing the elevated cableway system.
19. The force equalizing assembly of claim 18, said catenary cable system clamp further comprising an extension member clamp slidably guiding the catenary cable system into said catenary cable system clamp to lessen wear on the catenary cable system due to bending of the catenary cable system at the connection to the catenary cable system clamp.
20. The force equalizing assembly of claim 19 wherein said extension member guide comprises:
a pair of opposing members extending outwardly from each longitudinal end of the assembly body for fitting around the catenary cable system, and
a plurality of linings fitting between the pair of opposing members and the catenary cable system and providing for clamping friction therebetween while reducing wear therebetween.
21. The force equalizing assembly of claim 18 wherein said plurality of track cable system clamps comprises:
a plurality of cross extensions attached to the catenary cable system clamp, and
a plurality of springs attached between said cross extensions and said track cable system clamps for providing a yieldable attachment therebetween.
22. The force equalizing assembly of claim 21 wherein the spring constants of said springs are varied, with the springs attached between said cross extension and said track cable system clamps nearest to the middle of the plurality of track cable system clamps deflecting less under a given load than do the springs farther away from the middle of the group, thereby more equally distributing the loads carried through and clamping pressures exerted by said track cable system clamps, allowing said track cable system clamps that are farther from the middle of the group to deflect, whereby the clamps near the middle of the group will have greater load transferred to them.