Low-profile GSM-DCS-PCS-UMTS wire patch antenna on small ground plane

✍ Scribed by Labhib Assila; Jean-Marc Ribero; Robert Staraj; Jean-Lou Dubard

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 266 KB
• Volume: 51
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.24327

✦ Synopsis

Abstract

A small radiating element, designed to work simultaneously in GSM‐DCS‐PCS‐UMTS‐frequency bands, totally made up of metallic square parts on an air substrate is described. The total size of the supporting ground plane is smaller than λ/2 for the lower working frequency. By stacking two square wire‐patches, it is well‐known that both compactness, large bandwidth, and monopolar wire radiation pattern can be achieved. However, multiband behavior is always difficult to obtain using only stacked elements. The antenna proposed in this article uses two U slots in the upper plate to obtain the two desired frequency bandwidths. This new structure allows an easy realization and can be protected by a dielectric radome that could be taken into account during the optimization of the structure. Owing to its low profile, low cost and radioelectric properties such as large bandwidth and dipolar type radiation pattern, this antenna is very suitable for automobile or indoor ceiling applications needing a very small ground plane. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1247–1250, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24327