Four-way power divider and combiner for phased array system
Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. The present invention relates to a technique for implementing, in a compact form, a four-way power divider and combiner for a phased array system. More particularly, according to one embodiment of the present invention, a power divider including one input port and four output ports comprises an input terminal inductor having one end connected to the input port and the other end connected to the ground, an inductor group including four output terminal inductors, and four connection units for connecting the input port and the inductor group, wherein four secondary inductors are respectively connected to the four connection units so that four nodes are formed between the four connection units and the inductor group, and the output ports are respectively disposed on the four connection units between the input port and the inductor group.
1. A power divider comprising one input port and four output ports, the power divider comprising:
an input-terminal inductor configured to have one end connected to the input port and another end connected to a ground;
an inductor group configured to comprise four output-terminal inductors; and
four connectors configured to connect the input port and the inductor group,
wherein the output-terminal inductors are respectively connected to the four connectors so that four nodes are formed between the four connectors and the inductor group,
wherein the output ports are respectively disposed in the four connectors between the input port and the inductor group, and
wherein a value of a quality factor of the input-terminal inductor is greater than a value of each quality factor of the output-terminal inductors.
2. The power divider of claim 1 ,
wherein the four connectors comprise a first connector, a second connector, a third connector, and a fourth connector,
wherein the four nodes comprise a first node formed in the first connector, a second node formed in the second connector, a third node formed in the third connector, and a fourth node formed in the fourth connector, and
wherein the power divider further comprises:
a first capacitor disposed between the input port and the first node in the first connector,
a second capacitor disposed between the input port and the second node in the second connector,
a third capacitor disposed between the input port and the third node in the third connector, and
a fourth capacitor disposed between the input port and the fourth node.
3. The power divider of claim 2 ,
wherein the four output-terminal inductors comprise a first inductor, a second inductor, a third inductor, and a fourth inductor,
wherein the first inductor connects between the first node and the second node,
wherein the second inductor connects between the second node and the third node,
wherein the third inductor connects between the third node and the fourth node, and
wherein the fourth inductor connects between the fourth node and the first node.
4. The power divider of claim 2 ,
wherein the four output-terminal inductors comprise a first inductor, a second inductor, a third inductor, and a fourth inductor,
wherein the first inductor connects between the first node and the third node,
wherein the second inductor connects between the second node and the fourth node,
wherein the third inductor connects between the third node and the second node, and
wherein the fourth inductor connects between the fourth node and the first node.
5. The power divider of claim 2 , further comprising:
a first resistor disposed between the first capacitor and the first node;
a second resistor disposed between the second capacitor and the second node;
a third resistor disposed between the third capacitor and the third node; and
a fourth resistor disposed between the fourth capacitor and the fourth node.
6. The power divider of claim 1 ,
wherein the quality factor of the input-terminal inductor has a value of 15, and
wherein the quality factor of the output-terminal inductors has a value of 10.
7. An electronic device in a wireless communication system, the electronic device comprising:
a transceiver configured to comprise a phased array antenna and a power divider comprising one input port and four output ports; and
a controller configured to control the transceiver,
wherein the power divider comprises:
an input-terminal inductor configured to have one end connected to the input port and another end connected to a ground,
an inductor group configured to comprise four output-terminal inductors, and
four connectors configured to connect the input port and the inductor group,
wherein the output-terminal inductors are respectively connected to the four connectors so that four nodes are formed between the four connectors and the inductor group,
wherein the output ports are respectively disposed in the four connectors between the input port and the inductor group, and
wherein a value of a quality factor of the input-terminal inductor is greater than a value of each quality factor of the output-terminal inductors.
8. The electronic device as claimed in claim 7 ,
wherein the four connectors comprise a first connector, a second connector, a third connector, and a fourth connector,
wherein the four nodes comprise a first node formed in the first connector, a second node formed in the second connector, a third node formed in the third connector, and a fourth node formed in the fourth connector, and
wherein the power divider further comprises:
a first capacitor disposed between the input port and the first node in the first connector,
a second capacitor disposed between the input port and the second node in the second connector,
a third capacitor disposed between the input port and the third node in the third connector, and
a fourth capacitor disposed between the input port and the fourth node.
9. The electronic device as claimed in claim 8 ,
wherein the four output-terminal inductors comprise a first inductor, a second inductor, a third inductor, and a fourth inductor,
wherein the first inductor connects between the first node and the second node,
wherein the second inductor connects between the second node and the third node,
wherein the third inductor connects between the third node and the fourth node, and
wherein the fourth inductor connects between the fourth node and the first node.
10. The electronic device as claimed in claim 8 ,
wherein the four output-terminal inductors comprise a first inductor, a second inductor, a third inductor, and a fourth inductor,
wherein the first inductor connects between the first node and the third node,
wherein the second inductor connects between the second node and the fourth node,
wherein the third inductor connects between the third node and the second node, and
wherein the fourth inductor connects between the fourth node and the first node.
11. The electronic device as claimed in claim 8 , further comprising:
a first resistor disposed between the first capacitor and the first node;
a second resistor disposed between the second capacitor and the second node;
a third resistor disposed between the third capacitor and the third node; and
a fourth resistor disposed between the fourth capacitor and the fourth node.
12. The electronic device as claimed in claim 7 ,
wherein the quality factor of the input-terminal inductor has a value of 15, and
wherein the quality factor of the output-terminal inductors has a value of 10.