Vertical polarized antenna and terminal device

Patent metadata

Field	Value
Publication number	US-11637380-B2
Application number	US-201916769653-A
Country	US
Kind code	B2
Filing date	Jan 16, 2019
Priority date	Jan 19, 2018
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

The present disclosure provides technology that proposes an ultra-high frequency band (mmWave band) vertical polarization antenna having a new structure applicable to a slim planar structure (e.g., a terminal).

First claim

What is claimed is:

1. A vertical polarization antenna comprising:
an aperture antenna that includes a top flat conductor surface and a front flat conductor surface formed by a flat conductor plate bent along a bending line extending in a lengthwise direction of the aperture antenna, and the aperture antenna further includes a single aperture having a top surface at the top flat conductor surface of the aperture antenna and the single aperture having a side surface at the front flat conductor surface of the aperture antenna, the top surface of the single aperture directly coupled to the side surface of the single aperture, the aperture antenna being configured to radiate vertical polarized wave through the single aperture; and
a cavity structure coupled to a rear side of the aperture antenna.

2. The vertical polarization antenna of claim 1 , wherein the cavity structure is configured to block propagation of rearward radiation through the single aperture.

3. The vertical polarization antenna of claim 2 , wherein the cavity structure is configured to cause the rearward radiation through the single aperture to resonate within a cavity formed by the cavity structure so as to be coupled to forward radiation through the single aperture.

4. The vertical polarization antenna of claim 3 , wherein the cavity structure has a length and a width that make a resonance frequency within the cavity equal to a resonance frequency of the aperture antenna.

5. The vertical polarization antenna of claim 1 , wherein
the aperture antenna includes a power feeder in a center area of the top surface of the single aperture.

6. The vertical polarization antenna of claim 5 , wherein the power feeder includes a power feeding line extending on the top flat conductor surface toward the bending line and a converter extending in the lengthwise direction of the aperture antenna.

7. The vertical polarization antenna of claim 6 , wherein the converter is configured to store electricity applied from the power feeding line and to convert the electricity into a magnetic field.

8. The vertical polarization antenna of claim 1 , wherein
a width of the top surface of the single aperture is larger than a width of the side surface of the single aperture.

9. The vertical polarization antenna of claim 8 , wherein edges of the side surface of the single aperture have an angled shape, and
edges of the top surface of the single aperture have a curved shape.

10. The vertical polarization antenna of claim 1 , wherein
the aperture antenna has a resonance frequency that is determined depending on a width of the top surface of the single aperture and a length of the single aperture.

11. The vertical polarization antenna of claim 1 , wherein
the cavity structure includes a bottom surface facing the top flat conductor surface, a rear surface facing the front flat conductor surface, and side surfaces connected to the bottom surface and the rear surface of the cavity structure and facing each other.

12. The vertical polarization antenna of claim 11 , wherein each of the bottom surface, the rear surface, and the side surfaces has a planar shape or a curved shape.

13. A terminal device comprising:
an antenna; and
a transmission/reception processor configured to process a signal transmitted/received through the antenna;
wherein the antenna includes:
an aperture antenna having a single aperture, and configured to radiate vertically polarized wave through the single aperture, the aperture antenna including a top flat conductor surface and a front flat conductor surface bent from the top flat conductor surface at a bending line extending in a lengthwise direction of the aperture antenna, and the single aperture having a top surface at the top flat conductor surface of the aperture antenna and a side surface at the front flat conductor surface of the aperture antenna, the top surface of the single aperture directly coupled to the side surface of the single aperture; and
a cavity structure coupled to a rear side of the aperture antenna.

14. The terminal device of claim 13 , wherein a plurality of antennas are arranged along an outer edge of a circuit board on which the transmission/reception processor is disposed.

15. The terminal device of claim 14 , wherein the plurality of antennas are positioned on a same plane as the transmission/reception processor.

Assignees

• Sk Telecom Co Ltd
• Postech Acad Ind Found

Inventors

• Seong Hee Chang
• Shin Joon Young
• Kang Sung Yong
• Hong Won Bin
• Park Jun Ho

Classifications

• H01Q9/18 Primary

  Vertical disposition of the antenna · CPC title

• H01Q13/18 Primary

  the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q13/12 ){; Open cavity antennas} · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/46

  Electric supply lines or communication lines · CPC title

• H01Q3/26

  varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture ({H01Q3/12,} H01Q3/22, H01Q3/24 take precedence) · CPC title