Mobile wireless communications device comprising non-planar internal antenna without ground plane overlap
View Patent ↗A mobile wireless communications device may include a housing, a main dielectric substrate carried by the housing, circuitry carried by the main dielectric substrate, and a ground plane conductor on the main dielectric substrate. The mobile wireless communications device may further include an L-shaped dielectric extension comprising a vertical portion extending outwardly from the main dielectric substrate and an overhang portion extending outwardly from the vertical portion and above an adjacent portion of the main dielectric layer. A main loop antenna conductor comprising at least one conductive trace may be relatively positioned on the overhang portion of the L-shaped dielectric extension so as not to overlap the ground plane conductor.
1. A mobile wireless communications device comprising:
a dielectric substrate;
a dielectric extension comprising a vertical portion extending outwardly from said dielectric substrate and an overhang portion extending outwardly from said vertical portion and above an adjacent portion of said dielectric substrate;
a loop antenna conductor carried by at least the overhang portion of said dielectric extension;
a first branch conductor having a first end coupled to said loop antenna conductor and having a second end defining a first feed point, and a second branch conductor having a first end coupled to said loop antenna conductor and a second end defining a second feed point; and
a tuning branch conductor connected to said loop antenna conductor.
2. The mobile wireless communications device of claim 1 wherein said first and second branch conductors are carried by said dielectric substrate.
3. The mobile wireless communications device of claim 1 wherein said tuning branch conductor is carried by said dielectric substrate.
4. The mobile wireless communications device of claim 1 wherein said loop antenna conductor also extends over said vertical portion of said dielectric extension.
5. The mobile wireless communications device of claim 1 wherein said loop antenna conductor has a gap therein defining first and second ends of said loop antenna conductor.
6. The mobile wireless communications device of claim 1 wherein said loop antenna conductor has at least one tuning feature therein.
7. The mobile wireless communications device of claim 1 further comprising wireless transceiver circuitry carried by said dielectric substrate and coupled to the first and second feed points.
8. A mobile wireless communications device comprising:
a dielectric substrate;
a dielectric extension comprising a vertical portion extending outwardly from said dielectric substrate and an overhang portion extending outwardly from said vertical portion and above an adjacent portion of said dielectric substrate;
a loop antenna conductor carried by at least the overhang portion of said dielectric extension, said loop antenna conductor also extending over said vertical portion of said dielectric extension and having a gap herein defining first and second ends of said loop antenna conductor;
a first branch conductor having a first end coupled adjacent the first end of said loop antenna conductor and having a second end defining a first feed point, and a second branch conductor having a first end coupled adjacent the second end of said loop antenna conductor and a second end defining a second feed point; and
a tuning branch conductor connected to said loop antenna conductor.
9. The mobile wireless communications device of claim 8 wherein said first and second branch conductors are carried by said dielectric substrate.
10. The mobile wireless communications device of claim 8 wherein said tuning branch conductor is carried by said dielectric substrate.
11. The mobile wireless communications device of claim 8 wherein said loop antenna conductor has at least one tuning feature therein.
12. The mobile wireless communications device of claim 8 further comprising wireless transceiver circuitry carried by said dielectric substrate and coupled to the first and second feed points.
13. A method for making a mobile wireless communications device comprising:
providing a dielectric extension comprising a vertical portion extending outwardly from a dielectric substrate and an overhang portion extending outwardly from the vertical portion and above an adjacent portion of the dielectric substrate;
forming a loop antenna conductor carried by at least the overhang portion of the dielectric extension;
forming a first branch conductor having a first end coupled to the loop antenna conductor and having a second end defining a first feed point, and a second branch conductor having a first end coupled to the loop antenna and a second end defining a second feed point; and
forming a tuning branch conductor connected to the loop antenna conductor.
14. The method of claim 13 wherein the first and second branch conductors are carried by the dielectric substrate.
15. The method of claim 13 wherein the tuning branch conductor is carried by the dielectric substrate.
16. The method of claim 13 wherein the loop antenna conductor also extends over the vertical portion of the dielectric extension.
17. The method of claim 13 wherein the loop antenna conductor has a gap therein defining first and second ends of the loop antenna conductor.
18. The method of claim 13 wherein the loop antenna conductor has at least one tuning feature therein.