المقال الدينى عند محمود تيمور

Mehmood Taimur، A famous and well known literary figure of Egypt، when started his writing career، besides many literary works، he has penned down many essays too. He has written on different topics including the religious one. His religious writings come in the category of religious essays as their topics are purely religious. His religious essays encompass the following aspects: Love of Religion: He was bred and brought up in a religious family and learnt religious principles. So his essays are imbued in religious spirit. He regards love of religion not a mere part but the very essence of creed. He firmly believes that love of religion and country are the indispensable part of one’s belief. Love of God: His heart was saturated with the love of God. The sighs he heaved from his heart in his religious essays are the clear proof of his love of God. Love of Prophet (PBUH): He believes that you can never have love of God in your heart without the love of His Holy Prophet. Such kind of love is incomplete. He thinks that personality of the Holy Prophet(PBUH) is the living practical example of Holy Quran. Love of Quran: Mehmood Taimur has made clear that the Quran is the miracle of Holy Prophet(PBUH). Quran had influenced his heart deeply. He always meditated on Quran and the recitation of Quran after morning prayer was his daily routine. In short having been raised in religious atmosphere، his heart was free of all vices. On seeing such character traits، every reader may infers the conclusion that his s essays are truly religious in their spirit.

Reflect Arrays for High Gain Applications

This research work focuses on design and analysis of low-cost, single-layer broadband reflectarrays for X-band applications. Traditionally, parabolic reflectors and phased arrays were introduced to obtain the high gain. The disadvantages associated with traditional antenna types include: narrow bandwidth, high fabrication cost and complex feed networks. Recently, reflectarray antennas have been developed to overcome the disadvantages associated with parabolic reflectors and phased arrays. High gain reflectarray antennas are typically employed in radars, satellite communication and direct broadcasting applications. Four different type of delay-lines integrated reflectarray elements which include: single circular delay-line, pair of circular delay-lines, quad-meander and T-shape delay-lines are designed to obtain a broad linear phase range, high gain and good aperture efficiency. The reflectarray unit element performance is investigated in terms of phase range, Transverse Electric (TE) and Transverse Magnetic (TM) modes and far-field radiation patterns. The reflectarray unit element is analyzed by using circuit model technique and equivalent circuit results are verified through High Frequency Structure Simulator (HFSS™). The circuit model technique replaces the lengthy full-wave simulation of FEM method. This method provides fast and accurate calculation of electromagnetic parameters i.e. magnitude and phase range. The unit element shape and configurations are used to extract the lumped parameters and reflection characteristics. The reflectarray antenna system contains a feed horn antenna and an arrangement of phase shifting array elements. A hybrid Finite Element Boundary Integral (FEBI) method is used for electromagnetic modeling of reflectarray antenna system. The FEBI method provides accurate electromagnetic analysis of complex and medium-to-large sized structures. The reflectarray far-field radiation characteristics are obtained by using the hybrid FEBI method. The reflectarray antenna system model comprises of feed horn antenna and array of phase shifting elements. The feed horn antenna and array elements are designed separately. The effect of the incident angle, feed-to-diameter ratio and transmission modes can easily be considered in the FEBI based system simulations. The proposed reflectarray prototypes are fabricated and measured on a low-cost FR-4 substrate. The reflectarray antenna measurements are made in anechoic chamber. A gain of more than 20 dBi is realized for the proposed reflectarray configurations. The simulated and measured cross polarizations and side-lobe-levels are below -20 dB in all design configurations. More importantly, simulated results are in good agreement with the measured results.