Low-loss and flexible transmission line-integrated antenna for MMWave band
Disclosed is a low-loss and flexible transmission line-integrated antenna for an mmWave band. The low-loss and flexible transmission line-integrated antenna includes an antenna and a transmission line integrated with the antenna. Here, the antenna includes a dielectric substrate formed of a dielectric having a certain thickness on a ground plate, a signal conversion portion which is formed on the dielectric substrate and converts an electrical signal of a mobile communication terminal into an electromagnetic signal and radiates the electromagnetic signal into the air or receives an electromagnetic signal in the air and converts the electromagnetic signal into an electrical signal of the mobile communication terminal, and an electricity feeding portion formed on the dielectric substrate and connected to the signal conversion portion.
1. A low-loss and flexible transmission line-integrated antenna for an mmWave band, comprising:
an antenna; and
a transmission line integrated with the antenna,
wherein the antenna comprises:
a dielectric substrate formed of a dielectric having a certain thickness on a ground plate;
a signal conversion portion which is formed on the dielectric substrate and converts an electrical signal of a mobile communication terminal into an electromagnetic signal and radiates the electromagnetic signal into the air or receives an electromagnetic signal in the air and converts the electromagnetic signal into an electrical signal of the mobile communication terminal; and
an electricity feeding portion formed on the dielectric substrate and connected to the signal conversion portion,
wherein the transmission line comprises:
a central conductor which has one end connected to the electricity feeding portion of the antenna and transmits the transmitted or received electrical signal;
an external conductor which has the same axis as that of the central conductor and surrounds the central conductor in an axial direction of the central conductor; and
a dielectric formed between the central conductor and the external conductor in the axial direction, and
wherein the dielectric is a sheet material having a nanostructure formed by electrospinning a resin at a high voltage.
2. The low-loss and flexible transmission line-integrated antenna of claim 1 , wherein the antenna and the transmission line reinforce a bonding force of the conductor and the dielectric sheet using a low-loss bonding sheet or are formed by depositing a conductor on a nanosheet.
3. The low-loss and flexible transmission line-integrated antenna of claim 1 , wherein the transmission line comprises:
a nanosheet dielectric having a certain thickness;
conductor surfaces formed on a top surface and a bottom surface of the nanosheet dielectric; and
a stripline transmission line formed as a signal line in the nanosheet dielectric and a middle of the conductor surfaces, and
wherein a plurality of via holes are formed between the conductor surface formed above the nanosheet dielectric and the conductor surface formed below the nanosheet dielectric.
4. The low-loss and flexible transmission line-integrated antenna of claim 1 , wherein the antenna is a patch antenna, a microstrip patch antenna, or a diagonal line type patch antenna structure and the signal conversion portion is a patch,
wherein the patch antenna or the microstrip antenna is formed of a metal and further comprises a ground plate located on the bottom surface, and
wherein the dielectric substrate is formed of a dielectric having a certain thickness on the ground plate and has a transmission line-extended structure.
5. The low-loss and flexible transmission line-integrated antenna of claim 1 , wherein the antenna is a dipole antenna or a monopole antenna.
6. The low-loss and flexible transmission line-integrated antenna of claim 1 , wherein the antenna is a planar inverted F antenna (PIFA) as a built-in antenna built in a mobile communication terminal.
7. The low-loss and flexible transmission line-integrated antenna of claim 1 , wherein the antenna is a slot antenna implemented through a variety of slots.
8. A mobile communication terminal comprising the low-loss and flexible transmission line-integrated antenna for an mmWave band according to claim 1 .
9. The mobile communication terminal of claim 8 , wherein the antenna and the transmission line reinforce a bonding force of the conductor and the dielectric sheet using a low-loss bonding sheet or are formed by depositing a conductor on a nanosheet.
10. The mobile communication terminal of claim 8 , wherein the transmission line comprises:
a nanosheet dielectric having a certain thickness;
conductor surfaces formed on a top surface and a bottom surface of the nanosheet dielectric; and
a stripline transmission line formed as a signal line in the nanosheet dielectric and a middle of the conductor surfaces, and
wherein a plurality of via holes are formed between the conductor surface formed above the nanosheet dielectric and the conductor surface formed below the nanosheet dielectric.
11. The mobile communication terminal of claim 8 , wherein the antenna is a patch antenna, a microstrip patch antenna, or a diagonal line type patch antenna structure and the signal conversion portion is a patch,
wherein the patch antenna or the microstrip antenna is formed of a metal and further comprises a ground plate located on the bottom surface, and
wherein the dielectric substrate is formed of a dielectric having a certain thickness on the ground plate and has a transmission line-extended structure.
12. The mobile communication terminal of claim 8 , wherein the antenna is a dipole antenna or a monopole antenna.
13. The mobile communication terminal of claim 8 , wherein the antenna is a planar inverted F antenna (PIFA) as a built-in antenna built in a mobile communication terminal.
14. The mobile communication terminal of claim 8 , wherein the antenna is a slot antenna implemented through a variety of slots.