New miniature microstrip antenna for UWB wireless communications

Abstract

A new miniature ultra-wideband (UWB) microstrip antenna was designed using a slotted patch resonator, and reduced ground plane realized on FR-4 substrate with 13 × 27.2 mm overall size. The designed antenna simulated by computer simulation technology (CST) electromagnetic simulator has three resonant frequencies of 3.1, 5.2, and 8.5 GHz with input reflection of –20.5, –21.8, and –22 dB for each resonance, respectively. The impedance bandwidth of 6.23 GHz is applicable for modern UWB wireless systems. The projected antenna has been fabricated and tested to corroborate the simulated S11 consequences, and the experimental consequences are in worthy compatibility with the simulated ones.

Keywords

• uwb
• microstrip antenna
• slotted patch
• reduced ground plane
• compactness.