Samsung Electronics Co., Ltd.

Ajou University Industry Cooperation Foundation

Jong-ho Jung

Seong-soo Lee

Young-min Moon

Ikmo Park

Young-il Kim

Young-Eil Kim

A small broadband monopole antenna having a perpendicular ground plane with an electromagnetically coupled feed is provided. The small broadband monopole antenna may be realized as a small antenna having a size of 0.085&#x3bb;&#xd7;0.085&#x3bb;&#xd7;0.085&#x3bb;by positioning a folded strip line under a shorted square disc. A resonance of the shorted square disc may be coupled to a resonance of the square folded strip line so as to form a wide bandwidth of about 36.6% of a central frequency of 2.313 GHz based on a VSWR&#x2266;2. Also, rectangular slits may be inserted into the perpendicular ground plane to improve a distortion of a radiation pattern that forms on the perpendicular ground plane so as to reduce a backward radiation by 3 dBi or more. The small broadband monopole antenna exhibits a forward radiation pattern similar to that of a general monopole antenna and has a gain of about 2.6 dBi within a bandwidth.

Small broadband monopole antenna having perpendicular ground plane with electromagnetically coupled feed

A small broadband monopole antenna including a shorted patch and a probe with a strip line that are electromagnetically coupled with each other. The probe with a strip line has a length of about &#x3bb;/4, where &#x3bb; is a wavelength. The strip line may be one of a spiral type, a folded type and a helix type. A resonance frequency of the antenna can be adjusted by varying the inductance and the capacitance of the resonance circuits. In addition, a double-band antenna or a single-band antenna having a broad bandwidth can be designed in accordance with application purpose of the antenna.

Electromagnetically coupled small broadband monopole antenna

Growing community of inventors

Yongin-si, South Korea

Jong-ho Jung