# 광대역 특성을 갖는 역 F형 내장형 안테나의 설계

• Jung, Hee-Kyung (Department of Electrical and Computer Engineering, Hanyang University) ;
• Park, Hoon (Department of Electrical and Computer Engineering, Hanyang University) ;
• Choi, Jae-Hoon (Department of Electrical and Computer Engineering, Hanyang University)
• 정희경 (한양대학교 전자통신컴퓨터공학과) ;
• 박훈 (한양대학교 전자통신컴퓨터공학과) ;
• 최재훈 (한양대학교 전자통신컴퓨터공학과)
• Published : 2005.11.05
• 45 5

#### Abstract

This paper presents the design of a novel small and wide band planar inverted F-antenna which simultaneously covers GSM900/GPS/DCS1800/DCS1900/DMB service. The proposed antenna consisting of a main patch with rectangular slit, strip 1 and strip 2, occupied the total volume of.$15\times36\times6mm^3$. A very wide impedance bandwidth characteristic was achieved by optimizing both the distance between the feed line and short strip and the length of rectangular slit on the main patch. The commercial electromagnetic software, CST Microwave Studio, is used to design the structure. The maximum gains at the frequencies of 900, 1575, 1800, 1900, and 2600 MHz were 2.07, 1.07, 1.69 and 0.55, -1.99 dBi, respectively. The overall shape of the radiation patterns is suitable for mobile communication application.

#### Keywords

internal antennas;wide band antenna;planar inverted-F antenna;small antenna