Electronic device and method for correcting phase in electronic device
According to various embodiments disclosed herein, an electronic device includes a transceiver configured to generate a first signal and a second signal, a first coupler configured to receive the first signal from the transceiver and provide the first signal to the first antenna; a second coupler configured to receive the second signal from the transceiver and provide the second signal to the second antenna; and a control circuitry operatively connected to the transceiver. The control circuitry is configured to determine values associated with a phase difference between the first signal and the second signal at least partially based on the signals from the first coupler and the second coupler, and to cause the transceiver to adjust a phase of the first signal and/or a phase of the second signal using at least some of the values in order to reduce or remove the phase difference. Other embodiments have been provided.
1. An electronic device comprising:
a housing;
a first antenna located inside the housing or in a first portion on the housing;
a second antenna located inside the housing or in a second portion on the housing to be spaced apart from the first portion of the housing;
a transceiver configured to generate a first signal and a second signal;
a first coupler electrically connected between the first antenna and the transceiver, and configured to receive the first signal from the transceiver, and forward the first signal to the first antenna and a first feedback signal of the first signal to a control circuitry;
a second coupler electrically connected between the second antenna and the transceiver, and configured to receive the second signal from the transceiver, and forward the second signal to the second antenna, and a second feedback signal of the second signal to the control circuitry; and
the control circuitry operatively connected to the transceiver,
wherein the transceiver, the first coupler, the second coupler, and the control circuitry are located inside the housing, and
wherein the control circuitry is configured to:
determine a maximum amplitude of a combined signal, which is a combination of the first feedback signal and the second feedback signal; and
cause the transceiver to adjust a phase of at least one of the first signal and a phase of the second signal such that the maximum amplitude of the combined signal corresponds to a predetermined value.
2. The electronic device of claim 1 , further comprising:
a communication processor including the control circuitry.
3. The electronic device of claim 1 , further comprising:
a combiner electrically connected to the first coupler, the second coupler, and the control circuitry.
4. The electronic device of claim 3 , wherein the combiner is configured to combine the first feedback signal fed back from the first coupler and the second feedback signal fed back from the second coupler and to provide the combined signal to the control circuitry.
5. The electronic device of claim 1 , wherein the first coupler and the second coupler are disposed outside the transceiver.
6. The electronic device of claim 1 , wherein the first coupler is physically closer to the first antenna than the transceiver and the second coupler is physically closer to the second antenna than the transceiver.
7. The electronic device of claim 6 , wherein the electronic device includes a first electrical path between the transceiver and the first coupler and a second electrical path between the transceiver and the second coupler, and
wherein the first path and the second path have different lengths.
8. The electronic device of claim 1 , wherein the housing further includes a side member including a first conductive portion provided as the first antenna and a second conductive portion provided as the second antenna.
9. The electronic device of claim 1 , wherein the control circuitry is configured to generate the first signal and the second signal in order to provide transmission diversity.
10. The electronic device of claim 9 , wherein the first signal and the second signal are Primary Carrier Component (PCC) signals having a same frequency.
11. The electronic device of claim 1 , wherein the control circuitry is configured to generate the first signal and the second signal in order to provide a beam-forming communication.
12. A method for providing a transmission diversity phase correction in an electronic device, the method comprising:
receiving a first signal at a first coupler electrically connected between a first antenna and a transceiver from the transceiver and providing the first signal to the first antenna;
receiving a second signal at a second coupler electrically connected between a second antenna and the transceiver from the transceiver and providing the second signal to the second antenna;
receiving, at a control circuitry, a first feedback signal of the first signal sent from the first coupler and a second feedback signal of the second signal sent from the second coupler;
determining, at a control circuitry, a maximum amplitude of a combined signal, which is a combination of the first feedback signal and the second feedback signal; and
adjusting, at the transceiver, at least one of a phase of the first signal and a phase of the second signal such that the maximum amplitude of the combined signal corresponds to a predetermined value.
13. The method of claim 12 , further comprising:
combining the first feedback signal fed back from the first coupler and the second feedback signal fed back from the second coupler.
14. The method of claim 12 , wherein, when a phase difference between the first signal and second signal is equal to or less than a predetermined value, it is determined that the phases of the transmission signals coincide with each other.
15. The method of claim 12 , further comprising:
generating the first signal and the second signal in order to provide transmission diversity.
16. The method of claim 12 , wherein
the first signal and the second signal are Primary Carrier Component (PCC) signals having the same frequency.