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The Journal of The Korea Institute of Intelligent Transport Systems Vol.9 No.2 pp.41-50
A Design of Multi-band Antenna Using Asymmetric Bow-Tie Structure
비대칭 보우 타이 구조를 이용한 다중 대역 안테나 설계
Abstract
In this paper, a multi-band antenna with novel structure for mobile communications is designed and fabricated. The proposed antenna has the Multi-band antenna characteristics by two common-grounded slots with different size and angle. In order to reduce size and to enhance the gain of the antenna, a reflector is consisted of chokes on the three sides. It is optimized by using the CST Microwave Studio commercial software based on the FIA(Finite Intergration Algorithm) and PBA(Perfect Boundary Approximation), and then the fabricating and measuring is practiced. As a result of measurement, the reflection coefficient is less than -11㏈(VSWR < 1.8) and the gain of antenna is more than 6㏈i at 824~894㎒ and 1885-2500㎒.
