Gain Degradation in Boresight of Aperture Coupled MS Antenna
时间：04-08
整理：3721RD
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Hello Everyone,
I have encountered with a problem while designing an aperture coupled microstrip antenna element. Although the antenna is in resonance in the band where it has been operating, there is a problem with the radiation pattern. In the boresight, for the E-plane radiation pattern, there is a reduction about 1.5-2 dB in the directivity. Firstly, I think that there is a phase increment on the smaller dimensions of the hyphotetical slots at the resonating edges of the patch. Due to this reason, the two radiating hyphothetical slots creates element patterns that are squinted. And hence there are two maximas, one is looking left due to left slot and one is to the right of the boresight due to the right hyphotetical slot, in the E-plane radiation pattern. However, in the literature I could not find such a phenomena. Anyone could help me to handle with this problem? Thanks for your interests.
I have encountered with a problem while designing an aperture coupled microstrip antenna element. Although the antenna is in resonance in the band where it has been operating, there is a problem with the radiation pattern. In the boresight, for the E-plane radiation pattern, there is a reduction about 1.5-2 dB in the directivity. Firstly, I think that there is a phase increment on the smaller dimensions of the hyphotetical slots at the resonating edges of the patch. Due to this reason, the two radiating hyphothetical slots creates element patterns that are squinted. And hence there are two maximas, one is looking left due to left slot and one is to the right of the boresight due to the right hyphotetical slot, in the E-plane radiation pattern. However, in the literature I could not find such a phenomena. Anyone could help me to handle with this problem? Thanks for your interests.
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