A study on the Design and Fabrication of Microstrip Array Antenna for Ultra Wideband Applications

Ham, Min-Su; Choi, Byung-Ha

Journal of Navigation and Port Research 2007;31(6):503-507.
Published online August 30, 2007.

초광대역 마이크로스트립 안테나의 설계와 제작에 관한 연구

함민수, 최병하

A study on the Design and Fabrication of Microstrip Array Antenna for Ultra Wideband Applications

Min-Su Ham, Byung-Ha Choi

Abstract

In this paper, the ultra-widebend, microstrip patch antenna with the bandwidth of 3 GHz was implemented for ultra wideband (UWE) wireless communication applications. In order to cover the very wide bandwidth of 3 GHz， a multi- resonance antenna was designed, each resonance frequency was separated into five frequency bend, 7.5, 8.1, 8.7, 9.3, and 9.9GHz with the interval of 600 MHz BW. And for wideband characteristics of each antenna， U-slot antennas were designed at each center frequency. Designed five U-slot antennas were connected in series for multi-resonance of 3GHz BW and wideband matching was also designed for impedance matching transmission line calculated. The relative dielectric constant, the height, the loss tangent of the PCB substrate were Er = 4.8, h = 0.6 and loss tangent=O.0009 respectively. The implemented antenna's radiation patterns and gain were directivity characteristics and 1.46~4.08dBi at the five separated center frequency.

Key Words: UWB(ultra-widebend);Microstrip antenna;U-slot;Multi-resonance;Array antenna