Loop‐loaded monopole antenna with miniaturization and dual‐band characteristics

Abstract

A novel miniaturized dual‐band monopole antenna loaded with two types of loops is presented. The split loop is loaded at the center of the monopole for dual‐band operation and the rectangular loop loaded at the top is for miniaturization. The novel miniaturization technique is used as a self resonant topology. The monopole below its resonant frequency is known to possess a capacitive reactance and the loop below its resonant frequency has an inductive reactance. So an inductive loop is used to match a below‐resonant monopole for miniaturization. As an example of this principle, a miniaturized dual‐band antenna prototype for WLAN applications is designed, fabricated, and tested. Measured results show that the antenna offers higher gains and better efficiencies than the unloaded monopole. The radiation patterns are seen to be unaffected by the presence of the top loaded loop. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1236–1239, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26784

Compact Tri-band Loaded Antenna for wireless Communication and Fifth generation Applications

“…There is great appreciation for coplanar waveguides Modern multifunctional wireless communication Systems benefit from the use of multiband antennas because they minimise the requirement for several antenna elements in a communication device by resonating at different frequencies. [4][5][6][7] Many academics have had the chance to investigate a broad variety of potential solutions due to the challenging issue of designing tiny multiple resonant antennas. One common multiband technique involves stimulating the antenna using various feeds, [7] including microstrip and coaxial probes.…”

Stacked T-Shaped Strips Compact Antenna for WLAN and WiMAX Applications

“…Multiband antenna works for more than one standard is vital component for portable devices. Modified monopole antennas is considered as proficient among other antennas structures due to its simplest structures [7,8].…”