This paper presents a critical review of modern 4G, 4G/5G, and 5G antennas, which employ
PIN diodes and Varactors for polarization or frequency reconfiguration. For the reviewed 4G …

This paper presented a novel sensor based on a stepped impedance resonator, which can
measure the permittivities of materials at different resonant frequencies simultaneously. The …

Future smart reconfigurable antennas (RAs)(Haupt RL and Lanagan M (2013)
Reconfigurable antennas. IEEE Antennas and Propagation Magazine 55, 49–61) will likely …

A new dual U-slot single microstrip patch antenna for 5G applications is presented. The
antenna slot parameters are optimized to obtain a return loss below 10dB from 26.8 GHz to …

Advanced sensor and interconnect solutions are driving innovation in the wearable,
wireless, and connected healthcare device industry. The implementation of 5G networks is …

In this paper, a frequency reconfigurable antenna is designed to tune the frequency within
the Sub-6 GHz spectrum to support IoT applications. The antenna consists of two patches …

In this research article, a high-performance and compact 2-port slotted hexagonal structure
multiple-input multiple-output (MIMO) system is presented. This structure is designed by …

This work presents the development of an ultra-compact highly isolated two-element
implantable Multiple-Input-Multiple-Output (MIMO) antenna for high-data-rate bio-telemetry …

This paper presents a high gain, compact size and dual band rectangular patch antenna for
5G applications. To enhance the gain of antenna, an equilateral triangle slots on the upper …

The huge and continuous evolution in mobile communications industry increases the
popularity and importance of mobile communications sector in daily life of communities. This …