Electronic device including antenna and antenna control method
An example electronic device may include a memory; a processor; a communication circuit; an input/output expander (I/O expander); and an array antenna. The processor may control to store an input/output table in the memory and to radiate an RF signal through the array antenna based on the input/output table.
1 . An electronic device comprising:
memory;
at least one processor comprising processing circuitry;
a communication circuit;
an input/output (I/O) expander; and
an array antenna,
wherein the I/O expander comprises a plurality of dividers and a plurality of couplers cross-arranged in a chain structure, and
the memory stores an I/O table and the at least one processor is configured to control the electronic device to radiate an RF signal through the array antenna via the I/O expander based on the I/O table.
2 . The electronic device of claim 1 , wherein
the at least one processor is configured to control the electronic device to calculate an RF signal for output from the I/O expander by combining a magnitude and frequency phase state of an RF signal input to the I/O expander.
3 . The electronic device of claim 1 , wherein
the at least one processor is configured to control the electronic device to radiate an RF signal by steering a phased array beam of the RF signal based on the I/O table.
4 . The electronic device of claim 1 , wherein
the at least one processor is configured to control the electronic device to radiate an RF signal by controlling a polarization of the RF signal based on the I/O table.
5 . The electronic device of claim 1 , wherein
the communication circuit comprises an integrated circuit (IC) configured to steer a phased array beam or an IC configured to control an RF signal polarization.
6 . The electronic device of claim 1 , wherein
each of the plurality of couplers comprises a rat-race coupler or a quadrature coupler.
7 . The electronic device of claim 1 , wherein the I/O expander comprises:
a first divider;
a second divider;
a first coupler; and
a second coupler, wherein
the first coupler and the second coupler are connected between the first divider and the second divider.
8 . The electronic device of claim 7 , wherein
the first divider and the second divider comprise one input port and two output ports.
9 . The electronic device of claim 8 , wherein
the communication circuit is connected to the input port of the first divider and the second divider.
10 . The electronic device of claim 8 , wherein
the array antenna is connected to a respective output port of each of the first coupler and the second coupler.
11 . The electronic device of claim 1 , wherein the I/O table stores relationships between an RF signal at an input of the I/O expander and RF signals at outputs of the I/O expander.
12 . A method of controlling an electronic device including at least one processor comprising processing circuitry, an input/output (I/O) expander, and memory, the method comprising:
storing an input/output (I/O) table in the memory; and
radiating an RF signal through an antenna via the I/O expander based on the I/O table,
wherein the I/O expander comprises a plurality of dividers and a plurality of couplers cross-arranged in a chain structure, each of the plurality of couplers comprising two input ports and two output ports.
13 . The method of claim 12 , further comprising calculating an RF signal for output from the I/O expander by combining a magnitude and frequency phase state of an RF signal input to the I/O expander.
14 . The method of claim 12 , further comprising radiating an RF signal by steering a phased array beam of an RF signal based on the I/O table.
15 . The method of claim 12 , further comprising radiating an RF signal by controlling a polarization of the RF signal based on the I/O table.