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Comparison of different feeding techniques for a patch antenna at an X frequency band to evaluate its quantitative impact on the antenna’s parameters

In this paper, the comparison of different feeding techniques for a patch antenna, at X frequency band, to evaluate its quantitative impact on the different antenna parameters is presented. When different feeding techniques are applied at the X band spectrum to improve the impedance matching the performance of various characteristics parameters such as radiation pattern, gain, beam width etc are influenced. To find how much these are influenced a comparative analysis is carried out and results are presented in this paper. For investigation purpose, the patch antenna and the various feeding techniques were designed on Roger (RT5880) substrate at 8 GHz resonating frequency.