公开(公告)号：US20150155625A1

公开(公告)日：2015-06-04

申请号：US14299870

申请日：2014-06-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ju Derk PARK ,  Ho Yong KANG ,  Cheol Sig PYO

IPC: H01Q3/24 ,  H01Q1/48

CPC classification number: H01Q3/247 ,  H01Q1/48 ,  H01Q9/0407

Abstract: Provided is a small switchable directional control antenna that can perform direction control according to shapes and sizes of various devices. The antenna includes a dielectric layer, a radiation patch formed on a side of the dielectric layer, a ground plane formed on a side of the dielectric layer opposite to the side on which the radiation patch is formed and configured to have a plurality of slots formed at edges thereof, and a control module insulated from the ground plane and configured to control electrical connection between the radiation patch and the ground plane.

Abstract translation: 提供了一种可以根据各种装置的形状和尺寸执行方向控制的小型可切换方向控制天线。 天线包括电介质层，形成在电介质层一侧的辐射贴片，形成在与形成有辐射贴片的一侧相对的电介质层的一侧的接地平面，并且被配置为具有形成的多个槽 以及与接地平面绝缘并被配置为控制辐射贴片和接地平面之间的电连接的控制模块。

公开(公告)号：US20170155191A1

公开(公告)日：2017-06-01

申请号：US15361098

申请日：2016-11-25

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun Hee KIM ,  Ju Derk PARK ,  In Hwan LEE ,  Ho Yong KANG ,  Jae Heum LEE

IPC: H01Q1/42 ,  H01Q1/22 ,  H01Q9/04 ,  E02D29/14 ,  H01Q1/48

CPC classification number: E02D29/14 ,  H01Q1/04 ,  H01Q1/40 ,  H01Q5/364 ,  H01Q9/0421

Abstract: Disclosed is a manhole type omnidirectional antenna having a relatively small angle between a main beam direction and the Earth's surface and exhibiting omnidirectional characteristics to allow long-range communication, wherein the manhole type omnidirectional antenna includes a manhole cover installed in a manhole in the Earth's surface; a main body installed in a cavity of an upper surface of the manhole cover and configured to convert an electrical signal into an electromagnetic wave to wirelessly communicate with a gateway separated from the manhole cover; and a radome inserted into the cavity to cover the main body.

公开(公告)号：US20170294711A1

公开(公告)日：2017-10-12

申请号：US15484449

申请日：2017-04-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Eun Hee KIM ,  Ju Derk PARK ,  In Hwan LEE ,  Ho Yong KANG ,  Jae Heum LEE

IPC: H01Q5/50 ,  H01P3/08

CPC classification number: H01Q5/50 ,  H01P1/20363 ,  H01P1/2039 ,  H01P3/08

Abstract: Provided is a method of improving a bandwidth of an antenna using a transmission line stub to enable long-range communication together with broadband matching. According to the method, it is possible to combine a transmission line stub in series or parallel with a feeding point, which is an antenna signal input/output point of a body serving as an antenna, and apply the transmission line stub to an antenna for wide use.