AbstractA low profile, electrically small coplanar antenna with omnidirectionnal radiation is presented. The antenna is less than λ0/400 in height and λ0/14 in lateral dimension. It is matched to 50 Ω without the need for external matching. The antenna's geometry and concept design using short‐circuiting and line‐meandering techniques are presented in this article. Simulated and measured return losses are also provided here, as well as efficiency and radiation patterns. The measurements verify that the fabricated antenna, which is proposed for its terminal (110 mm × 73 mm) features an excellent impedance match, gain, and omnidirectional radiation in a large bandwidth (10%). © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:72–77, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25663