BROADBAND CIRCULARLY POLARIZED FILTERING ANTENNAS

Broadband Circularly Polarized Filtering Antennas

This paper consists of two parts.The first part presents a review of the recent development in broadband circularly polarized filtering antennas.The second part presents a novel design of broadband integrated filtering antenna based on eighth-mode SIW (EMSIW) resonators for rectenna applications.This work has three main novel contributions.First, b

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Effect of B4C and waste porcelain ceramic particulate reinforcements on mechanical and tribological characteristics of high strength AA7075 based hybrid composite

In the present research, B4C (constant = 4 wt.%) and X-wt.% of waste Porcelain (P) (X = 0, 4, 8, 12 and 16) particulates, reinforced into AA7075 hybrid aluminium metal-ceramics composites (AMCs) manufactured using the stir casting route were investigated.Microstructures, compositional elements and worn surfaces were analysed to understand their tri

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Illicit drugs use in South African female correctional centres

The number of male prisoners is several times that of female prisoners worldwide, yet paradoxically, women illicit drug users outnumber men.Even though the use of illicit drugs is prohibited within prisons, the substances continue to permeate prisons and the behaviour thrives therein.The channels through which illicit drugs make their way into fema

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