In this paper, the effect of the human body proximity on LPWAN antennas is investigated. Both numerical and experimental tests are performed on two different IoT devices. The obtained results show that the performance degradation caused by the body …
The prototype of a differential pattern reconfigurable antenna suitable for efficient wireless sensor networks is presented. The measurement of the prototype as well as the integration with the reconfiguration control system is discussed. Numerical …
Design of a miniature multi-band antenna system for positioning application is proposed in this paper. The effect of the battery and the casing is investigated. Simulated and measured results are presented. S-parameter and radiation results with a …
In this paper, a 5G MIMO mobile phone prototype including four antennas working in the 10-13.2 GHz band is designed. The objective of the study is to evaluate the negative impact due to the user's hand in frequencies higher than 10 GHz. A 3D …
This letter presents a reconfigurable antenna for mobile terminals with extended band coverage obtained by using a digitally tunable capacitor (DTC). The antenna structure is matched permanently over high frequency bands including DCS/PCS, UMTS, LTE …
This letter presents the design of a planar antenna for ultrawideband (UWB) applications with a bandwidth of 5.5 GHz over 3.7 to 9.2 GHz and return loss values lower than -10 dB. The antenna geometry is described in terms of a spline-based …