Back to results
US 11,316,238 B2Granted
High frequency film transmission line, antenna including the same and antenna-integrated image display device
AssigneeDongwoo Fine-Chem Co., Ltd.
InventorsYoon Ho Huh, Han Sub Ryu, Yun Seok Oh
Life of this patent
Estimating the term…
Abstract
A film transmission line includes a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure, and an electrode line on the dielectric layer. A signal loss level (S21) defined of the film transmission line is −1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz. The film transmission line may be applied to a high frequency thin film antenna and an image display device.
Claims17
An antenna comprising:
- a film transmission line comprising:
- a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure;
- and
- an electrode line on an upper surface of the dielectric layer;
- and
- an antenna electrode electrically connected to the film transmission line and disposed under a lower surface of the dielectric layer,
- wherein a signal loss level (S21) defined as an Equation 1 of the film transmission line is −1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz, wherein the Equation 1 is as following:
- S21 (dB)=10×Log(Output power/Input power).
5 more elements
An image display device, comprising:
- a printed circuit board;
- an antenna mounted on the printed circuit board;
- a display panel disposed over the printed circuit board;
- and
- a film transmission line disposed over the display panel and electrically connected to the antenna, the film transmission line comprising a dielectric layer including at least one of a liquid crystal polymer (LCP) structure or a cyclo olefin polymer (COP) structure, and an electrode line on an upper surface of the dielectric layer,
- wherein the antenna and the film transmission line are physically spaced apart from each other with the display panel interposed therebetween;
- and
- a signal loss level (S21) defined as an Equation 1 of the film transmission line is −1.5 dB or more at a frequency in a range from 20 GHz to 30 GHz, wherein the Equation 1 is as following:
- S21 (dB)=10×Log(Output power/Input power).
6 more elements
Dependencies are inferred from the claim text.