يستخدم العاكس القطعي المكافئ في الأنظمة الصوتية الموجهة، و ذلك بهدف الحصول
على التوجيهية، إضافة إلى زيادة الربح في الإرسال و الاستقبال. لذلك فقد تم إجراء دراسة
نظرية لتوصيف العوامل التي تؤثر على ربح الطبق القطعي المكافئ في المجال
الصوتي، كما تم الحصول تجريبياً على علاقة الربح بالتردد باستخدام طبق قطعي مكافئ
ذي فتحة إهليليجية، إضافة لتحليل العوامل التي أدت إلى انحراف العلاقة التجريبية عن
العلاقة النظرية.
The parabolic reflector is used in directed acoustic systems, with the aim of
gettingdirectivity, as well as increasing the gain in transmission and reception.
Therefore, a theoretical study was carried out to describe the factors that affect the gain
of the parabolic dish in the acoustic field. The frequency-gain relationship was
experimentally obtained using a parabolic dish with an elliptical aperture, in addition to
the analysis of the factors that led to the deviation of the experimental relationship from
the theoretical relationship.
References used
(Zohair Mohammed Elhassan Hussein, Abdelrasoulgabbarkizar elzibaidi. "Design and implementation of a controlled gain parabolic antenna", IOSR Journal of Engineering (IOSRJEN), ISSN (e): 2250- 3021, ISSN (p): 2278-8719, Vol. 04, Issue 11 (2014
(Akshay Behl, Akash Bhatia, Avril Puri. "Parabolic Antennas And Its Applications", INTERNATONAL JOURNAL OF INNOVATIVE RESEARCH IN TECHNOLOGY (IJIRT), ISSN : 2349-6002, Vol. 1, Issue 6 (2014
Stutzman, Warren L., and Gary A. Thiele. Antenna theory and design. John Wiley & Sons, 2012
Usually, a reflector dish with a loudspeaker or a microphone placed at
its focal point is used in directed acoustic systems to determine the
direction in which the acoustic wave is transmitted or received, in
addition to improve the gain in the ac
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The Arabic Alphabet is considered the first linguistic lesson
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