Compact Multiband Monopole Antenna For Umts, Wimax, And Wlan Applications (Vol 58, Pg 844, 2016)

In this letter, a compact multiband microstrip-fed planar monopole antenna is presented. The proposed antenna has three resonance modes which cover three bands of wireless standards including universal mobile telecommunications system band (1920-2170 MHz), 3.5 GHz worldwide interoperability for microwave access band (3.4-3.6 GHz), and 5.2 GHz wireless local area network band (5.15-5.35 GHz). The antenna has a simple structure which consists of a rectangular radiation patch with two symmetric folded slots for size reduction, a step-shaped microstrip feed line, and a rectangular ground plane. Owing to fully printed, simple and small configuration, the proposed antenna fabrication is cost effective. The designed antenna has a total dimensions of 30 x 34x0.8 mm(3) which makes this antenna a good candidate for mobile communication applications. The radiation characteristics such as gain, radiation patterns and radiation efficiency of the suggested antenna are investigated. The antenna radiates Omni-directionally in H-plane and bidirectionally in the E-plane. In this design, very high radiation efficiency over the operating bands is obtained. According to the mentioned advantages, the proposed antenna can be a good choice for multiband wireless applications. (c) 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:844-847, 2016