Published in Rhyu, H., Jung, B., Harackiewicz, F.J., & Lee, B. (2005). Design of a multi-band internal antenna using an open stub. Asia-Pacific Microwave Conference Proceedings, 2005. APMC 2005. doi: 10.1109/APMC.2005.1606771 ©2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.


An internal antenna for GSM (880∼920MHz), DCS (1710∼1880MHz), and US-PCS (1850∼1990MHz) mobile handset is proposed. The antenna is designed to have a multi-band operation and includes feed line, patch and matching stub. It has a single radiating element and operates in multi-band by a matching circuit. The measured peak gain is 0.11dBi, 1.65dBi and 0.13dBi for GSM, DCS, and US-PCS, respectively.