Metamaterial antenna with mechanical connection
View Patent ↗Metamaterial antenna devices having one or more mechanical connection units made of electrically conductive materials to provide both mechanical engagement and electrical conduction for the antenna devices.
1. A metamaterial antenna device comprising:
a substrate structure;
one or more metallization layers supported by the substrate structure and structured to include:
a ground electrode formed in one of the one or more metallization and
a plurality of electrically conductive parts formed in at least one of the one or more metallization layers, the plurality of electrically conductive parts including:
a cell patch;
a via line coupling the cell patch to the ground electrode;
a feed line comprising:
a conductive line attachment comprising at least one of a meander line shape, a spiral shape, or a zigzag shape;
a distal end close to and capacitively coupled to the cell patch; and
a proximal end coupled to a feed port for directing the an antenna signal to and from the cell patch; and
one or more connecting units respectively mechanically engaging at least part of the substrate structure to a device enclosure and respectively electrically coupled to at least one of the plurality of electrically conductive parts,
wherein the plurality of electrically conductive parts, the one or more connecting units, and at least part of the substrate structure are configured to form a composite left and right handed (CRLH) metamaterial antenna structure that exhibits a plurality of frequency resonances associated with the antenna signal.
2. The antenna device as in claim 1 , wherein the one or more connecting units include a first connecting unit which electrically couples to the cell patch.
3. The antenna device as in claim 1 , wherein the one or more connecting units include a first connecting unit which electrically couples to the distal end portion of the feed line.
4. The antenna device as in claim 1 , wherein the distal end portion of the feed line is modified to form a launch pad to modify capacitive coupling.
5. The antenna device as in claim 4 , wherein the one or more connecting units include a first connecting unit which electrically couples to the launch pad.
6. The antenna device as in claim 1 , wherein the one or more connecting units include a first connecting unit which electrically couples to the via line.
7. The antenna device as in claim 1 , wherein the one or more connecting units include a first connecting unit which electrically couples to the conductive line attachment.
8. The antenna device as in claim 1 , wherein the conductive line attachment includes one or more of a vertical spiral shape or a planar spiral shape.
9. The antenna device as in claim 8 , wherein
the conductive line attachment includes a plurality of first segments in a first metallization layer, a plurality of second segments in a second metallization layer, and a plurality of vias formed between the first and second metallization layers and connecting the first and second segments at multiple locations, wherein
the first segments, the second segments, and the vias are configured to form the vertical spiral shape.
10. The antenna device as in claim 8 , wherein
the conductive line attachment includes a plurality of first segments in a first metallization layer, a plurality of second segments in a second metallization layer, one of the one or more connecting units electrically coupling one of the first segments and one of the second segments at one location, and a plurality of vias formed between the first and second metallization layers and connecting the first and second segments at multiple locations other than the one location, and wherein
the first segments, the second segments, the one of the one or more connecting units, and the vias are configured to form the vertical spiral shape.
11. The antenna device as in claim 8 , wherein
the conductive line attachment includes a plurality of first segments in a first metallization layer, a plurality of second segments in a second metallization layer, first one of the one or more connecting units electrically coupling one of the first segments and one of the second segments at a first location, second one of the one or more connecting units electrically coupling one of the first segments and one of the second segments at a second location, and a plurality of vias formed between the first and second metallization layers and connecting the first and second segments at multiple locations other than the first and second locations, and wherein
the first segments, the second segments, the first one of the one or more connecting units, the second one of the one or more connecting units, and the vias are configured to form the vertical spiral shape.
12. The antenna of claim 1 , wherein the conductive line attachment comprises a meander line shape.
13. The antenna of claim 1 , wherein the conductive line attachment comprises a zigzag shape.
14. The antenna device as in claim 1 , wherein
the cell patch is formed in a first metallization layer; and the via line is formed in a second metallization layer and coupled to the ground electrode; and
a via is formed between the first metallization layer and the second metallization layer and coupling the cell patch and the via line.
15. The antenna device as in claim 1 , wherein
the cell patch is formed in a first metallization layer; the via line is formed in a second metallization layer and coupled to the ground electrode; and
wherein the one or more connecting units includes a first connecting unit which electrically couples the cell patch and the via line.
16. The antennas device as in claim 1 , wherein the one or more connecting units include a first connecting unit which comprises:
a screw, made of an electrically conductive screw material, mechanically engaged with the device enclosure; and
a screw boss, made of an electrically conductive screw boss material, mechanically engaging the screw, the device enclosure and the substrate structure and electrically coupling to the screw and to the at least one of the plurality of conductive parts.
17. A metamaterial antenna device comprising:
a substrate structure;
one or more metallization layers supported by the substrate structure and structured to include:
a ground electrode formed in one of the one or more metallization and
a plurality of electrically conductive parts formed in at least one of the one or more metallization layers, the plurality of electrically conductive parts including:
a plurality of cell patches; and
a plurality of via lines coupling the plurality of cell patches respectively to the ground electrode;
wherein the feed line includes a distal end close to and capacitively coupled to one or more of the plurality of cell patches, and a proximal end coupled to a feed port for directing the an antenna signal to and from the cell patch; and
one or more connecting units respectively mechanically engaging at least part of the substrate structure to a device enclosure and respectively electrically coupled to at least one of the plurality of electrically conductive parts,
wherein the plurality of electrically conductive parts, the one or more connecting units, and at least part of the substrate structure are configured to form a composite left and right handed (CRLH) metamaterial antenna structure that exhibits a plurality of frequency resonances associated with the antenna signal.
18. The antenna device as in claim 17 , wherein
the one or more connecting units include a first connecting unit coupled to one of the cell patches, and a second connecting unit coupled to another one of the cell patches.
19. The antenna device as in claim 17 , wherein
the one or more connecting units include a first connecting unit coupled to one of the via lines, and a second connecting unit coupled to another one of the via lines.
20. A method for providing a metamaterial device, comprising:
forming a substrate structure;
forming one or more metallization layers supported by the substrate structure, including:
forming a ground electrode in one of the one or more metallization and forming a plurality of electrically conductive parts in at least one of the one or
more metallization layers, the plurality of electrically conductive parts including: a cell patch; a via line coupling the cell patch to the ground electrode; a feed line comprising:
a conductive line attachment comprising at least one of a meander line shape, a spiral shape, or a zigzag shape;
a distal end close to and capacitively coupled to the cell patch; and
a proximal end coupled to a feed port for directing the antenna signal to and from the cell patch; and
mechanically engaging at least part of the substrate structure to a device enclosure using one or more connecting units respectively electrically coupled to at least one of the plurality of electrically conductive parts,
wherein the plurality of electrically conductive parts, the one or more connecting units, and at least part of the substrate structure are configured to provide a composite left and right handed (CRLH) metamaterial antenna structure that exhibits a plurality of frequency resonances associated with an antenna signal.
21. The method of claim 20 , wherein forming the conductive line attachment includes forming one or more of a vertical spiral shape or a planar spiral shape.
22. The method of claim 21 , wherein forming the conductive line attachment includes:
forming a plurality of first segments in a first metallization layer;
a plurality of second segments in a second metallization layer;
electrically coupling one of the first segments and one of the second segments at one location using one of the one or more connecting units;
forming a plurality of vias between the first and second metallization layers connecting the first and second segments at multiple locations other than the one location,
wherein the first segments, the second segments, the one of the one or more connecting units, and the vias are configured to form the vertical spiral shape.