Antenna structure
In some aspects, the techniques described herein relate to an apparatus including: a ground plane element including: a non-conductive support layer, a conductive layer arranged on the non-conductive support layer, and at least one orifice through the non-conductive support layer and the conductive laminate layer; one or more radiating elements including a feed line and a solder pad, wherein each of the one or more radiating elements is secured to and electrically connected to the ground plane element via soldering of the solder pad to the conductive laminate layer; and at least one connector arranged in the at least one orifice and electrically connected to the feed line.
1. An apparatus comprising:
a ground plane element comprising:
a non-conductive support layer,
a conductive layer arranged on the non-conductive support layer, and
a first orifice through the non-conductive support layer and the conductive layer, and
a second orifice through the non-conductive support layer and the conductive layer;
a first Vivaldi radiating element comprising a first feed line and a first solder pad, wherein the first Vivaldi radiating element is electrically connected to the ground plane element via first soldering of the first solder pad to the conductive layer;
a second Vivaldi radiating element comprising a second feed line and a second solder pad, wherein the second Vivaldi radiating element is electrically connected to the ground plane element via second soldering of the second solder pad to the conductive layer, wherein the second Vivaldi radiating element is arranged orthogonally and concentrically relative to the first Vivaldi radiating element;
a first connector arranged in the first orifice and electrically connected to the first feed line;
a second connector arranged in the second orifice and electrically connected to the second feed line;
first epoxy epoxying the first connector to the non-conductive support layer; and
second epoxy epoxying the second connector to the non-conductive support layer,
wherein the first soldering and first epoxy secure the first Vivaldi radiating element to the non-conductive support layer and the second soldering and second epoxy secure the second Vivaldi radiating element to the non-conductive support layer without further structural supports.
2. The apparatus of claim 1 , wherein the first Vivaldi radiating element comprises a first antipodal Vivaldi radiating element and the second Vivaldi radiating element comprises a second antipodal Vivaldi radiating element.
3. The apparatus of claim 1 , wherein the first Vivaldi radiating element is configured to transmit or receive radiation with a first linear polarization; and
wherein the second Vivaldi radiating element is configured to transmit or receive radiation with a second linear polarization orthogonal to the first linear polarization.
4. The apparatus of claim 1 , wherein the first Vivaldi radiating element and the second Vivaldi radiating element are configured to transmit or receive radiation with circular polarization.
5. The apparatus of claim 1 , wherein the conductive layer comprises a copper conductive laminate layer.
6. The apparatus of claim 1 , wherein the non-conductive support layer and the conductive layer comprise a copper clad laminate material.
7. The apparatus of claim 1 , wherein the first connector is epoxied to the ground plane element and the second connector is epoxied to the ground plane element.
8. The apparatus of claim 1 , further comprising a support structure secured within a third orifice in the ground plane element and supporting an edge of the first Vivaldi radiating element or the second Vivaldi radiating element.
9. The apparatus of claim 1 , wherein the first Vivaldi radiating element comprises a microstrip structure on a copper clad laminate substrate.
10. The apparatus of claim 1 , wherein the first solder pad comprises a microstrip structure on a copper clad laminate substrate.
11. An apparatus comprising:
a ground plane element comprising:
a non-conductive support layer,
a conductive layer arranged on the non-conductive support layer, and
a plurality of orifices through the non-conductive support layer, and the conductive layer;
a plurality of pairs of Vivaldi antenna elements arranged on the ground plane element, wherein each Vivaldi element of the plurality of pairs of Vivaldi antenna elements comprises a feed line and a solder pad, wherein each Vivaldi element of the plurality of pairs of Vivaldi antenna elements is secured to and electrically connected to the ground plane element via soldering of its respective solder pad to the conductive layer, and wherein the Vivaldi antenna elements of each of the plurality of pairs of Vivaldi antenna elements are arranged orthogonally and concentrically relative to each other; and
a plurality of connectors, wherein each of the plurality of connectors is arranged in a respective one of the plurality of orifices, is electrically connected to a respective one of the feed lines, and epoxy secures each of the plurality of connectors to the non-conductive support layer,
wherein the soldering and the epoxy secure the plurality of pairs of Vivaldi radiating element to the non-conductive support layer without further structural supports.
12. The apparatus of claim 11 , wherein each of the pairs of Vivaldi antenna elements of the plurality of pairs of Vivaldi antenna elements comprises a pair of antipodal Vivaldi antenna elements.
13. The apparatus of claim 11 , wherein the conductive layer comprises a copper laminate layer.
14. The apparatus of claim 11 , wherein each of the plurality of connectors is epoxied to the non-conductive support layer.
15. The apparatus of claim 11 , further comprising a cover arranged on the plurality pairs of Vivaldi antenna elements opposite to the ground plane element.
16. The apparatus of claim 15 , wherein the cover is transparent to radiation sent or received by the plurality of antenna elements.
17. The apparatus of claim 15 , wherein the cover comprises a closed cell foam.
18. The apparatus of claim 11 , wherein each of the plurality of pairs of Vivaldi antenna elements comprises a first Vivaldi antenna element configured to transmit or receive radiation with a first linear polarization.
19. The apparatus of claim 18 , wherein each of the plurality of pairs of Vivaldi antenna elements comprises a second Vivaldi antenna element configured to transmit or receive radiation with a second linear polarization orthogonal to the first linear polarization.
20. The apparatus of claim 11 , wherein each of the plurality of pairs of Vivaldi antenna elements is configured to transmit or receive radiation with circular polarization.