Foldable electronic device comprising antenna
An electronic device is provided. The electronic device includes a housing, a first antenna including a first portion of a first part, a second antenna including a second portion of a second part, a power distribution circuit electrically connected to the first antenna through a first path and electrically connected to the second antenna through a second path longer than the first path, a wireless communication circuit. The housing comprises the first part, the second part, and a connecting part disposed between the first part and the second part, wherein the first part is coupled to the connecting part so as to be rotatable with respect to the second part, and in a state where the housing is folded, a first point of the first antenna may correspond to a second point of the second antenna.
1 . An electronic device comprising:
a housing including a first part, a second part, and a connecting portion disposed between the first part and the second part, wherein the first part is coupled to the connecting portion to be rotatable to the second part;
a first antenna including a first portion of the first part;
a second antenna including a second portion of the second part;
a power distribution circuit electrically connected to a first feed point of the first antenna via a first path and electrically connected to a second feed point of the second antenna via a second path longer than the first path, wherein, in a state in which the housing is folded, the first feed point in which a first radio frequency (RF) signal for the first antenna is fed corresponds to the second feed point in which a second RF signal for the second antenna is fed;
a wireless communication circuit electrically connected to the first antenna and the second antenna via the power distribution circuit; and
at least one element disposed on at least one of the first path or the second path and configured to adjust a phase of at least one of the first RF signal or the second RF signal such that a difference between a phase of the first RF signal and a phase of the second RF signal is within a range.
2 . The electronic device of claim 1 , wherein the at least one element comprises a first element disposed on the first path, and a second element disposed on the second path.
3 . The electronic device of claim 2 ,
wherein the first element comprises a capacitor having a predetermined capacitance value, and
wherein the second element comprises an inductor having a predetermined inductance value.
4 . The electronic device of claim 2 , wherein each of the first element and the second element comprises a variable capacitor.
5 . The electronic device of claim 4 , further comprising:
a third element connected in parallel with the first element in the first path.
6 . The electronic device of claim 5 , wherein the third element comprises an inductor having a predetermined inductance value.
7 . The electronic device of claim 4 , further comprising:
a fourth element disposed on the second path between the second element and the second antenna.
8 . The electronic device of claim 7 , wherein the fourth element comprises an inductor having a predetermined inductance value.
9 . The electronic device of claim 2 , further comprising:
a first switch disposed between the power distribution circuit and a radio frequency integrated circuit (RFIC) corresponding to the wireless communication circuit; and
a second switch disposed on the second path between the second element and the second antenna,
wherein the first switch is configured to selectively electrically connect the RFIC to the power distribution circuit or the second switch, and
wherein the second switch is configured to selectively electrically connect the second antenna to the power distribution circuit or the first switch.
10 . The electronic device of claim 9 , further comprising:
a third switch disposed between the RFIC and the first antenna,
wherein the third switch is configured to selectively electrically connect the first antenna to the power distribution circuit or the RFIC.
11 . The electronic device of claim 2 , further comprising:
a first lumped element disposed between the first element and the first antenna in the first path; and
a second lumped element disposed between the second element and the second antenna in the second path.
12 . The electronic device of claim 1 , further comprising:
a flexible printed circuit board disposed over the first part and the second part across the connecting portion,
wherein at least a portion of the second path is included in the flexible printed circuit board.
13 . The electronic device of claim 1 , wherein the first portion of the first part and the second portion of the second part overlap each other in the state in which the housing is folded.
14 . The electronic device of claim 1 ,
wherein the housing has a predetermined length and a predetermined width shorter than the predetermined length in a state in which the housing is unfolded, and is foldable about an axis parallel to a length direction of the housing, and
wherein open-ends of the first antenna and the second antenna are directed outward from the connecting portion.
15 . The electronic device of claim 1 ,
wherein the housing has a predetermined length and a predetermined width shorter than the predetermined length in a state in which the housing is unfolded, and
wherein the housing is foldable about an axis parallel to a width direction of the housing.
16 . The electronic device of claim 1 , further comprising:
split portions disposed at opposite ends of the first portion of the first part,
wherein the split portions have a predetermined permittivity.
17 . An electronic device comprising:
a housing including a first part including a first side member, a second part including a second side member, and a hinge structure connecting the first part and the second part, wherein the first part is coupled to the hinge structure to be rotatable to the second part;
a flexible display;
a first antenna including a first portion of the first side member;
a second antenna including a second portion of the second side member, wherein, in a state in which the housing is folded, the first antenna overlaps the second antenna;
a power distribution circuit electrically connected to a first feed point of the first antenna via a first path and electrically connected to a second feed point of the second antenna via a second path longer than the first path, wherein, in the state in which the housing is folded, the first feed point in which a first radio frequency (RF) signal for the first antenna is fed corresponds to the second feed point in which a second RF signal for the second antenna is fed;
a wireless communication circuit electrically connected to the first antenna and the second antenna via the power distribution circuit; and
at least one lumped element disposed on at least one of the first path or the second path and configured to adjust a phase of at least one of the first RF signal or the second RF signal, such that a difference between a phase of the first RF signal and a phase of the second RF signal is within a range.
18 . The electronic device of claim 17 ,
wherein the at least one lumped element includes a first lumped element and a second lumped element,
wherein the first lumped element includes a capacitor having a predetermined capacitance value, and
wherein the second lumped element includes an inductor having a predetermined inductance value.
19 . The electronic device of claim 18 , wherein the at least one lumped element further includes:
a third lumped element connected in parallel with the first lumped element in the first path; and
a fourth lumped element disposed on the second path between the second lumped element and the second antenna,
wherein the third lumped element includes an inductor having a predetermined inductance value, and
wherein the fourth lumped element includes an inductor having a predetermined inductance value.
20 . The electronic device of claim 18 , further comprising:
a first switch disposed between the power distribution circuit and a radio frequency integrated circuit (RFIC) corresponding to the wireless communication circuit; and
a second switch disposed on the second path between the second lumped element and the second antenna,
wherein the first switch is configured to selectively electrically connect the RFIC to the power distribution circuit or the second switch, and
wherein the second switch is configured to selectively electrically connect the second antenna to the power distribution circuit or the first switch.