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Register a new userDesign of Linear periodic antenna array with desired sectoral pattern using Fourier transform and Woodward method
تصميم هوائي مصفوفي خطي بنموذج إشعاعي قطاعي باستخدام طريقة تحويل فورييه و طريقة WOODWARD
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فؤاد غانم( باحث )
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تم في هذا البحث تقديم طريقتين للحصول على نموذج إشعاعي قطاعي مرغوب باستخدام عملية تركيب المصفوفات، حيث سنقوم بحساب معاملات التغذية للمصفوف المدروس باستخدام طريقتي تحويل فورييه و طريقة "وودوارد"، و اعتماداً عليهما سندرس تأثير زيادة عدد عناصر المصفوف على شكل النموذج الإشعاعي و على سوية الوريقات الثانوية عند مسافة بينية ثابتة، ثم سنقارن بين شكل المخطط الإشعاعي لمعامل المصفوف المحسوب وفق الطريقتين المذكورتين مع بيان محاسن و عيوب كل منهما.
this paper illustrates two methods of having a desired sectoral pattern using the techniques of antenna synthesizing ,we will calculate the array excitation coefficients by using Fourier transform and Woodward method , beside studying the effect of increasing the array elements on the desired radiation pattern and the side loop level at a constant distance. Finally we will compare the results of the two methods showing their advantages and disadvantages.
References used
BALANIS,C.A."Antenna Theory Analysis And Design".3thedition, John Wiley & Sons, Inc New Work, 2005, 790
ORFANIDIS ,S. J. "Electromagnetic Waves And Antenna ".5th.ed, Rutgers University ,2006, 819
WEN ,Y; GAN,W ؛ YANG, G. "Nonlinear Least-square Solution to flat-top pattern Synthesis Using Arbitrary Linear Array". Signal Processing U.S.A, Vol.85, No.3, 2005, 1869 –1874
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