MULTIBAND ANTENNA BOOSTER ARCHITECTURE WITH A SINGLE SWITCH
A wireless device operates in a plurality of frequency bands and/or frequency regions and comprises a radiating system having an RF transceiver, a booster element, a radiation booster, or a modular multi-stage element; a ground plane layer on a PCB, an external port connected to the RF transceiver, and a multiband and/or multi-region radiofrequency system that comprises a switch. The radiating system also comprises a feeding architecture that connects the antenna element or the booster element to the radiofrequency system, the feeding architecture comprising a feeding line connected to a booster or antenna element and at least two feeding line extensions that are connected to a switch of the radiofrequency system and to the feeding line. A multi-region radiofrequency system comprises a switch and at least two matching networks selectable through the switch, the at least two matching networks including two stages: a pre-matching stage and a common matching stage.
1 . A wireless device comprising a radiating system that comprises:
a booster element;
a ground plane layer;
an RF transceiver; and
a radiofrequency system comprising:
a common matching stage coupled at one end to the RF transceiver;
a first pre-matching stage coupled at one end to the booster element;
a second pre-matching stage coupled at one end to the booster element; and
a single pole multiple throw (SPNT) switch having a pole P connected to the common matching stage, a first throw T 1 connected to the first pre-matching stage, and a second throw T 2 connected to the second pre-matching stage, wherein:
a first matching network to connect the RF transceiver to the booster element comprises the common matching stage and the first pre-matching stage connected by the switch via the first throw;
a second matching network to connect the RF transceiver to the booster element comprises the common matching stage and the second pre-matching stage connected by the switch via the second throw; and
the first and second matching networks are selectable via the switch to provide operation of the radiating system at two or more frequency regions.
2 . The wireless device of claim 1 , wherein the radiating system further comprises a feeding architecture that connects the booster element to the radiofrequency system, the feeding architecture comprising:
a feeding line connected to a radiation booster; and
at least two feeding line extensions that are connected to the switch and to the feeding line.
3 . The wireless device of claim 1 , wherein each of the first and second pre-matching stages comprises an inductor.
4 . The wireless device of claim 1 , wherein the first pre-matching stage comprises an inductor and the second pre-matching stage comprises a capacitor.
5 . The wireless device of claim 1 , wherein each of the first and second pre-matching stages comprises a series electronic component.
6 . A wireless device of claim 1 , wherein the first pre-matching stage comprises a series inductor.
7 . The wireless device of claim 1 , wherein the first pre-matching stage comprises a series capacitor.
8 . The wireless device of claim 1 , wherein the first pre-matching stage is common to more than one matching network of the radiofrequency system.
9 . The wireless device of claim 1 , wherein:
the first pre-matching stage is common to more than one matching network of the radiofrequency system; and
the RF transceiver comprises first and second ports.
10 . The wireless device of claim 9 , wherein the radiating system operates at mobile bands and at GPS bands.
11 . The wireless device of claim 1 , wherein the throws T 1 , T 2 are connected to two or more booster elements.
12 . The wireless device of claim 11 , wherein each of the first and second pre-matching stages comprises an inductor.
13 . The wireless device of claim 11 , wherein the first pre-matching stage comprises an inductor and the second pre-matching stage comprises a capacitor.
14 . The wireless device of claim 11 , wherein each of the first and second pre-matching stages comprises a series electronic component.
15 . The wireless device of claim 11 , wherein the first pre-matching stage comprises a series inductor.
16 . The wireless device of claim 11 , wherein the first pre-matching stage comprises a series capacitor.
17 . A wireless device comprising a radiating system that comprises:
a booster element;
a ground plane layer;
an RF transceiver; and
a radiofrequency system comprising:
a common matching stage coupled at one end to the RF transceiver;
a first pre-matching stage coupled at one end to the common matching stage;
a second pre-matching stage coupled at one end to the common matching stage; and
a single pole multiple throw (SPNT) switch having a pole P connected to the booster element, a first throw T 1 connected to the first pre-matching stage, and a second throw T 2 connected to the second pre-matching stage, wherein:
a first matching network to connect the RF transceiver to the booster element comprises the common matching stage and the first pre-matching stage connected to the booster element by the switch via the first throw;
a second matching network to connect the RF transceiver to the booster element comprises the common matching stage and the second pre-matching stage connected to the booster element by the switch via the second throw; and
the first and second matching networks are selectable via the switch to provide operation of the radiating system at two or more frequency regions.
18 . The wireless device of claim 17 , wherein each of the first and second pre-matching stages comprises an inductor.
19 . The wireless device of claim 17 , wherein each of the first and second pre-matching stages comprises a series electronic component.
20 . The wireless device of claim 17 , wherein the first pre-matching stage comprises an inductor and the second pre-matching stage comprises a capacitor.