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الفعل
أَرَقَّ ; أَرْهَفَ ; أَنْحَفَ ; أَنْحَلَ ; خَفَّفَ السَّائِلَ ; رَهُفَ
الصفة
أَهْيَف ; خَرِيع ; دَقِيق ; رَفِيع ; ضامِر ; ضاوٍ ; ضَعِيف ; ضَمْر ; عَاجِز ; عاجِزٌ عن ; عَجِيف ; عَيَّان ; غَثِيث ; كَلِيل ; لَاغِب ; لَطِيف ; مُتَخَاذِل ; مُتْعَب ; مُرْهَق ; مُسْتَدِقّ ; مُسْتَضْعَف ; مُضْنًى ; مَعْرُوق ; مَمْنُون ; مَهْبُوط ; مَهْزُول ; مُهَلْهَل ; ناحِل ; نَحِيف ; نَحِيل ; هَبِيط ; هَزِيل ; هَلْهَل ; واهٍ ; واهِن
The thinned-array curse (sometimes, sparse-array curse) is a theorem in electromagnetic theory of antennas. It states that a transmitting antenna which is synthesized from a coherent phased array of smaller antenna apertures that are spaced apart will have a smaller minimum beam spot size, but the amount of power that is beamed into this main lobe is reduced by an exactly proportional amount, so that the total power density in the beam is constant.
The origin of the term is not clear. Robert L. Forward cites use of the term in unpublished Hughes Research Laboratories reports dating from 1976.