This paper explains in detail how different technological fields can help to fight against the COVID-19 pandemic disease by means of innovative applications These technological fields are such as Internet of Things (IoT), Nanotechnology, etc On the other hand, this paper proposes a new accurate and rapid diagnostic tool that can give more accurate and faster COVID-19 test results than the traditional used RT-PCR test and other new tool called Diffractive Phase Interferometry (DPI) Our approach uses a Raman spectroscopy technique to identify the coronavirus The sample is taken by blowing the person through a sample chamber that made from carbon nanotubes (CNT) Then, the viruses can be optically characterized by focusing laser light on the collected sample As known, every virus has its own fingerprint that can distinguish the coronavirus from any other type of viruses such as influenza This paper introduces a performance comparison between our proposed COVID-19 diagnostic method with the traditional RT-PCR method and the DPI tool The results showed the great ability of the proposed diagnostic tool to identify the virus easily, quickly, and accurately compared with the existing diagnosis tools © 2020 IAMOT
In this paper, a simple multiband antenna is introduced for wireless communication applications. The proposed antenna covers LTE700/GSM900/DCS1800/PCS1900/UMTS2100/WIMAX/WLAN bands. The proposed antenna consists of a two meandered strip antenna which occupies a compact area of only 30 mm × 23 mm ×1.5 mm. The antenna is designed on FR-4 substrate with a relative permittivity 4.5 and tangent loss 0.025. This planar antenna has a bandwidth of 10% at the 700 MHz and a bandwidth of 8.9% at the 900MHz band. In order to cover the low frequency bands, the outer meander strip line is utilized due to its compact size. The partial ground plane gives enhancement in a band width. Moreover, the stub is used for enhancement the matching at high frequency band start from 2.55 GHz to 3 GHz. The SAR calculations are calculated using the CST 2015 commercial package. Good agreement is presented between the experimental and the simulated results.
This paper presents design, realization and measurements of an energy harvesting circuit, working on different UHF TV channels, from 470 MHz to 550 MHz. Ambient radio frequency sources are considered, thus low power levels have been assumed for the circuit design. The circuit was implemented and several measurements were carried out for different frequencies, loads and input power levels
