International Journal of Microwave Engineering and Technology
Volume 7, Issue 1 (2021)
Published
Table of contents
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Broadband Polarization Reconfigurable Circularly Polarized Rectangular Slot Antenna
Abstract: A CPW fed circular polarized rectangular slot antenna having polarization switching capability is proposed. The antenna consists of a cross shaped feedline, two rectangular parasitic patches, and two stubs connected to ground of antenna by pin-diodes. Switching of its polarization from RHCP to LHCP is obtained by proper control of on and off states of PIN-diodes. By adjusting the length of the grounded strip and size of theparasitic patches, the …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 1–8 Read article
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A Microstrip Rat-Race Coupler for Narrow-Band Operation in the X-Band
Abstract: This paper proposes, designs, describes, analyses, and simulates a novel microstrip rat-race coupler for narrow-band operations in the X-band (8 GHz to 12 GHz), namely the 9.5 GHz to 10.3 GHz sub-band. This proposed four-port passive microwave device was realized utilizing microstrip technology with pure copper (lossy) being used as a metal in the conducting layers (transmission and ground plates) and Rogers TMM6 (lossy) being used in the dielectric layer. …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 18–22 Read article
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OFDM Systems with Reduced PAPR
Abstract: To reduce peak to average power radio (PAPR) of orthogonal frequency division multiplexing (OFDM) system, flexible and distortion less methods like SLM (Selected mapping) and PTS (Partial transmit sequences) are very useful. The variation of OFDM signal amplitudes is very wide with high PAPR. Huge PAPR necessitates a DAC with sufficient dynamic range to handle the OFDM signals' large peaks. PAPR reduction has been demonstrated to save considerable amounts of …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 22–28 Read article
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Use of Machine Learning Algorithms in Power System Load Forecasting: A review
Abstract: The electrical load forecasting has become one of the most important fields of research for secured, efficient, accurate, reliable power dispatch and management. The main aim of load demand forecasting is to predict the load demand for accurate generation scheduling, system security and economic dispatch of load at any time. Many Authors have done research on the evaluation of load forecasting methods, to improve the accuracy of prediction. In load …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 23–30 Read article
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Microwave synthesis of nanoparticles
Abstract: Synthetic exposure of material fabrication has reviewed in this article to study acceptability of treat by microwave. Competitive scheme and scope has assigned microwave assisted synthetic produce to that of convened method. Ethic has pursued for production of silver nanoparticles in ethylene glycol i.e. boiling point of 200 °C. Suggestive has pursued usage of higher temperatures and pressure accuse i.e. adoptive towards microwave reactor. Nanotechnological implement fabricate has issued to …
Published in International Journal of Microwave Engineering and Technology · Vol. 7, Issue 1, 2021 · pp. 29–34 Read article