Three-Channel Output Multiplexer Design Using Band-Pass Filter and Ultra-Wideband Antenna

Lee, Jung Nam; Park, Jong Kweon

doi:2016.16.2.100

J. Electromagn. Eng. Sci > Volume 16(2); 2016 > Article

Journal of Electromagnetic Engineering and Science 2016;16(2):100-105.
DOI: https://doi.org/10.5515/JKIEES.2016.16.2.100

Three-Channel Output Multiplexer Design Using Band-Pass Filter and Ultra-Wideband Antenna

Jung Nam Lee¹, Jong Kweon Park²

¹Wireless Application Research Department, Electronics and Telecommunications Research Institute (ETRI)
²Department of Information & Communication Engineering, Hanbat National University

Correspondence: Jong Kweon Park,Email: ingpark@hanbat.ac.kr

Abstract

We have designed a three-channel output multiplexer (OMUX) using a band-pass filter and an ultra-wideband (UWB) antenna. The proposed band-pass filter is composed of an inner rectangular loop, an outer open stub, and a defected ground structure. The outer open stub can be used to control the pass band, and the inner rectangular loop can improve the insertion loss characteristics of the band-pass filter. The proposed band-pass filter, UWB antenna, and OMUX are fabricated and measured. The designed OMUX can cover the band group 1 (3,168-4,752 MHz) of WiX system. The measured radiation patterns are close to those of a conventional dipole antenna and the measured antenna gain varies from 1.8 dBi to 3 dBi over the operating frequency range.

Key words: Band-Pass Filter, DGS, Inner Rectangular Loop, Outer Open Stub, OMUX, WiX, WVAN