A novel small triple-band monopole antenna with crinkle fractal-structure

A novel monopole antenna with crinkle fractal-structure for multiband applications is presented. In this paper adding crinkle fractal leads to increasing the number of resonance frequency. The operating frequencies of the proposed antenna are 1.780/3.520/5.260 GHz. The prototype of the proposed antenna is fabricated on an inexpensive FR-4 substrate. The size of the proposed antenna is 14 × 14 mm2 which has crinkle shape strip on top side. The radiation pattern of the proposed antenna is nearly omnidirectional. The simulated and the experimental results are in acceptable agreement with each other and confirm good performance for the offered antenna.