Electronic device including antenna and method of controlling the same

1. An apparatus, comprising:

a main antenna;

a diversity antenna configured to provide data communication according to a first communication scheme;

an additional antenna configured to provide data communication according to one of the first communication scheme and a second communication scheme different from the first communication scheme; and

at least one processor configured to:

detect a condition affecting performance of the diversity antenna,

identify utilization of a data communication scheme, and

if the data communication scheme is identified as the second communication scheme, maintain utilization of the additional antenna, and

if the data communication scheme is identified as the first communication scheme, switch from utilization of the diversity antenna to utilization of the additional antenna,

wherein one of the diversity antenna and the additional antenna is activated along with the main antenna.

2. The apparatus of claim 1 , wherein the switch is configured to:

disconnect the diversity antenna from a diversity communication system; and

connect the additional antenna to the diversity communication system.

3. The apparatus of claim 2 , wherein the connection to the diversity communication system is according to the first communication scheme.

4. The apparatus of claim 1 , wherein the first communication scheme comprises one of wideband code division multiple access (WCDMA), global system for mobile communications (GSM), high speed packet access (HSPA), evolved universal terrestrial radio access (E-UTRA), and evolved universal terrestrial radio access network (E-UTRAN).

5. The apparatus of claim 1 , wherein the second communication scheme comprises one of WiFi (IEEE 802.11), Bluetooth, Bluetooth low energy (BLE), and ZigBee (IEEE 802.15.4).

6. The apparatus of claim 1 , wherein:

the condition corresponds to a touch between the apparatus and a body part; and

the at least one processor is configured to detect the touch in association with at least one of an optical sensor, a capacitive touch sensor, a grip sensor, a capacitive grip sensor, and a pressure sensor.

7. The apparatus of claim 1 , wherein the condition corresponds to a radio signal intensity being smaller than a threshold value.

8. The apparatus of claim 1 , wherein:

the at least one processor is further configured to determine, in response to detection of the condition, whether data communication via the diversity antenna is associated with a weak electric field; and

the at least one processor is configured to perform the switch in response to determination of the weak electric field.

9. A method, comprising:

providing data communication using a diversity antenna with a main antenna, the diversity antenna providing data communication according to a first communication scheme;

providing data communication according to one of the first communication scheme and a second communication scheme by an additional antenna;

detecting a condition affecting performance of the diversity antenna;

identifying utilization of a data communication scheme;

if the data communication scheme is identified as the second communication scheme, maintaining utilization of an additional antenna; and

if the data communication scheme is identified as the first communication scheme, switching from utilization of the diversity antenna to utilization of the additional antenna,

wherein one of the diversity antenna and the additional antenna is activated along with the main antenna.

10. The method of claim 9 , wherein:

the diversity antenna is configured to perform data communication based on a first radio protocol; and

the additional antenna is configured to perform data communication based on one of the first radio protocol and a second radio protocol different from the first radio protocol.

11. The method of claim 10 , wherein performance of the data communication is continued using the first radio protocol.

12. The method of claim 10 , wherein the data communication is performed based on a connection with a diversity communication system.

13. The method of claim 9 , wherein the first communication scheme comprises one of wideband code division multiple access (WCDMA), global system for mobile communications (GSM), high speed packet access (HSPA), evolved universal terrestrial radio access (E-UTRA), and evolved universal terrestrial radio access network (E-UTRAN).

14. The method of claim 9 , wherein the second communication scheme comprises one of WiFi (IEEE 802.11), Bluetooth, Bluetooth low energy (BLE), and ZigBee (IEEE 802.15.4).

15. The method of claim 9 , wherein the condition corresponds to a touch condition.

16. The method of claim 9 , wherein the condition corresponds to a radio signal intensity being smaller than a threshold value.

17. The method of claim 9 , wherein detecting the condition comprises:

determining that the data communication using the diversity antenna is associated with a weak electric field.