Radio signal transmitting antenna, radio signal receiving antenna, radio signal transmission/reception system, radio signal transmitting meithod, and radio signal receiving method
The present invention is a radio signal transmitting antenna ( 10 ) including a first wave source ( 11 ) including a plurality of antenna elements (A 1 to AN) configured to form a first helical beam (H) for OAM (Orbital Angular Momentum) from the plurality of antenna elements (A 1 to AN) and output the first helical beam (H) and a second wave source ( 15 ) configured to receive the first helical beam (H) and form a second helical beam (L) output in a constant direction and transmits the second helical beam (L). The radio signal transmitting antenna ( 10 ) can transmit a helical beam (L) for OAM with a simplified and smaller device configuration.
1. A communication method of a radio transceiver, the communication method comprising:
transmitting, from a radiator, a first helical beam for OAM (Orbital Angular Momentum) and a first non-helical beam; and
receiving, at the radiator, a second helical beam and a second non-helical beam,
wherein the second non-helical beam is received by a single antenna element arranged at a center of a circle on a radiation surface of the radiator.
2. The communication method according to claim 1 , wherein the first helical beam is generated from M first antenna elements arranged at equal intervals on a circumference of the circle on the radiation surface of the radiator, and
wherein M is an integer greater than 2.
3. The communication method according to claim 2 , wherein the radiator comprises N first antenna elements arranged at equal intervals on a circumference of a respective one of K circles concentric with the circle, and
wherein K is an integer greater than 1 and N is an integer greater than 2.
4. The communication method according to claim 3 , wherein each of the N first antenna elements is arranged in a same direction from a center of the circle as a respective one of the M first antenna elements.
5. The communication method according to claim 4 , wherein N is equal to M.
6. The communication method according to claim 1 , wherein the first non-helical beam is generated from the single antenna element.
7. A radio transceiver comprising:
at least one memory that stores a set of instructions; and
at least one processor configured to execute the set of instructions to:
transmit, from a radiator, a first helical beam for OAM (Orbital Angular Momentum) and a first non-helical beam, and
receive, at the radiator, a second helical beam and a second non-helical beam,
wherein the second non-helical beam is received by a single antenna element arranged at a center of a circle on a radiation surface of the radiator.
8. The radio transceiver according to claim 7 , wherein the first helical beam is generated from M first antenna elements arranged at equal intervals on a circumference of the circle on the radiation surface of the radiator, and
wherein M is an integer greater than 2.
9. The radio transceiver according to claim 8 , wherein the radiator comprises N first antenna elements arranged at equal intervals on a circumference of a respective one of K circles concentric with the circle, and
wherein K is an integer greater than 1 and N is an integer greater than 2.
10. The radio transceiver according to claim 9 , wherein each of the N first antenna elements is arranged in a same direction from a center of the circle as a respective one of the M first antenna elements.
11. The radio transceiver according to claim 10 , wherein N is equal to M.
12. The radio transceiver according to claim 7 , wherein the first non-helical beam is generated from the single antenna element.
13. An antenna comprising:
a radiator configured to transmit a first helical beam for OAM (Orbital Angular Momentum) and a first non-helical beam, and receive a second helical beam and a second non-helical beam, wherein the second non-helical beam is configured to be received by a single antenna element arranged at a center of a circle on a radiation surface of the radiator.
14. The antenna according to claim 13 , further comprising M first antenna elements arranged at equal intervals on a circumference of the circle on the radiation surface of the radiator,
wherein the M first antenna elements are configured to generate the first helical beam, and
wherein M is an integer greater than 2.
15. The antenna according to claim 14 , wherein the radiator comprises N first antenna elements arranged at equal intervals on a circumference of a respective one of K circles concentric with the circle, and
wherein K is an integer greater than 1 and N is an integer greater than 2.
16. The antenna according to claim 15 , wherein each of the N first antenna elements is arranged in a same direction from a center of the circle as a respective one of the M first antenna elements.
17. The antenna according to claim 16 , wherein N is equal to M.
18. The antenna according to claim 13 , wherein the first non-helical beam is generated from the single antenna element.
19. A method of operating an antenna, the method comprising:
transmitting, by a radiator, a first helical beam for OAM (Orbital Angular Momentum) and a first non-helical beam; and
receiving, by the radiator, a second helical beam and a second non-helical beam,
wherein the second non-helical beam is received by a single antenna element arranged at a center of a circle on a radiation surface of the radiator.