Mobile wireless communications device comprising multi-frequency band antenna and related methods
View Patent ↗A mobile wireless communications device may include a housing and a multi-frequency band antenna carried within the housing. The multi-frequency band antenna may include a main loop conductor having a gap therein defining first and second ends of the main loop conductor, a first branch conductor having a first end connected adjacent the first end of the main loop conductor and having a second end defining a first feed point, and a second branch conductor having a first end connected adjacent the second end of the main loop conductor and a second end defining a second feed point. The antenna may further include a tuning branch conductor having a first end connected to the main loop conductor between the respective first ends of the first and second branches.
1. A mobile wireless communications device comprising:
at least one dielectric substrate;
wireless transceiver circuitry carried by said at least one dielectric substrate; and
an antenna comprising conductive traces carried by said at least one dielectric substrate and defining
a main loop conductor with a gap therein defining first and second ends of said main loop conductor,
a first branch conductor having a first end connected adjacent the first end of said main loop conductor and having a second end defining a first feed point coupled to said wireless transceiver circuitry,
a second branch conductor having a first end connected adjacent the second end of said main loop conductor and a second end defining a second feed point coupled to said wireless transceiver circuitry, and
a tuning branch conductor having a first end connected to said main loop conductor.
2. The mobile wireless communications device of claim 1 wherein said main loop conductor includes non-planar portions.
3. The mobile wireless communications device of claim 1 wherein said main loop conductor has at least one tuning feature therein.
4. The mobile wireless communications device of claim 1 wherein said first branch conductor comprises at least one tuning feature therein.
5. The mobile wireless communications device of claim 1 wherein said second branch conductor comprises at least one tuning feature therein.
6. The mobile wireless communications device of claim 1 wherein said tuning branch conductor comprises at least one tuning feature therein.
7. A mobile wireless communications device comprising:
at least one dielectric substrate;
wireless transceiver circuitry carried by said at least one dielectric substrate; and
an antenna comprising conductive traces carried by said at least one dielectric substrate and defining
a main loop conductor with a gap therein defining first and second ends of said main loop conductor,
said main loop conductor including non-planar portions,
a first branch conductor having a first end connected adjacent the first end of said main loop conductor and having a second end defining a first feed point coupled to said wireless transceiver circuitry,
a second branch conductor having a first end connected adjacent the second end of said main loop conductor and a second end defining a second feed point coupled to said wireless transceiver circuitry, and
a tuning branch conductor having a first end connected to said main loop conductor,
at least one of said first, second, and tuning branch conductors comprising a tuning feature therein.
8. The mobile wireless communications device of claim 7 wherein said main loop conductor comprises at least one tuning feature therein.
9. A method for making a mobile wireless communications device comprising:
providing at least one dielectric substrate carrying wireless transceiver circuitry thereon; and
forming an antenna comprising conductive traces carried by the at least one dielectric substrate and defining
a main loop conductor with a gap therein defining first and second ends of the main loop conductor,
a first branch conductor having a first end connected adjacent the first end of the main loop conductor and having a second end defining a first feed point coupled to the wireless transceiver circuitry,
a second branch conductor having a first end connected adjacent the second end of the main loop conductor and a second end defining a second feed point coupled to the wireless transceiver circuitry, and
a tuning branch conductor having a first end connected to the main loop conductor.
10. The method of claim 9 wherein the main loop conductor includes non-planar portions.
11. The method of claim 9 wherein the main loop conductor comprises at least one tuning feature therein.
12. The method of claim 9 wherein the first branch conductor comprises at least one tuning feature therein.
13. The method of claim 9 wherein the second branch conductor comprises at least one tuning feature therein.
14. The method of claim 9 wherein the tuning branch conductor comprises at least one tuning feature therein.