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In the present era of wireless communication networks, the key area of concern is always the need for faster data rates to meet the growing requirements. The 5G standards have the fortitude to bring about rapid data transfer speeds, instantaneous connectivity, large data capacities, and minimal latency. In this paper, a novel octal patch integrated with a bow-tie parasitic antenna element with full ground plane that incorporates a microstrip dual band antenna was proposed for 5G n257/n261/n259 and n260 band applications. This bow-tie parasitic antenna element integrated octal patch single and MIMO antenna structure was mounted on an RT Duriod 5880 (ε r = 2.2, loss tangent = 0.0009) with dimensions of 7.5 × 9.9 × 0.9 mm 3 and 7.5 × 19.8 × 0.9 mm 3 (0.67λ × 1.75λ × 0.07λ, where λ is considered at the lowest operating tuned frequency). A decoupling element was precisely placed in the core of a two-element MIMO antenna to reduce the mutual coupling. This embedded antenna radiating structure resonated in dual bands ranging 26. GHz with a center frequency of 28 GHz and 40.2 GHz, respectively. This achieves a bandwidth of 2.85 GHz (10.3%) and 4.29 GHz (10.75%) at the dual bands. The maximum gains were 7.9 dBi and 6.97 dBi, and greater than 92% efficiency was obtained over the dual bands. From the results extracted from the proposed antenna, it was found that the antenna is capable of covering the 5G NR n257/n261/n259 and n260 bands with significant bandwidth, gain, isolation, ECC, DG, TARC, multiplexing efficiency, CCL MEG, and radiation efficiency. Thus, the antenna can be considered a potential contender for 5G millimeter wave wireless communication systems.

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The Body Area Network (BAN) is a wireless technology in combination with wearables. It is a monitoring system which is mainly used in health care, children tracking, in car-assistance and sports science etc.  For wireless monitoring and continuous data transfer, an antenna needs to be integrated with the Body Area Network. This paper explains the different designs of microstrip patch antennas which operates at 2.4GHz and are more suitable for BAN. The simulation results in terms of return loss, gain and radiation pattern are presented.

This paper presents a comparative analysis of two high gain dc-dc converters with Voltage Multiplier Cells (VMC) for Pulsed Electric Field (PEF) applications. Voltage Multiplier Cells (VMC) are used to improve the voltage conversion ratio. These high gain dc-dc converters are used as the front-end converters for Pulsed Electric Field (PEF) circuit to produce pulsed output of higher amplitude for bacterial inactivation in food particles. The basic concepts of two high gain converters are discussed and a comparison in terms of the switch voltage stress, output diode voltage stress, input current and output voltage from the Pulsed Electric Field (PEF) circuit are done. The performance comparison and analysis for both the converters are achieved through the results from MATLAB simulation.