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Negative gain in CST antenna design
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Hello,
1.Can anyone help me regarding the gain parameter in CST Microwave Studio? How do we check it using the radiation pattern?
2. When I plot the maximum gain vs frequency graph when I use a 42mmx28mm patch (85 mm x 85 mm ground plane) I get a positive gain. But as soon as I change it to a 60 mm x 60 mm patch (90 mm x 90 mm ground plane) the gain starts becoming negative (-3 dB to -7 dB) at the resonant frequencies.
Thanks in advance.
1.Can anyone help me regarding the gain parameter in CST Microwave Studio? How do we check it using the radiation pattern?
2. When I plot the maximum gain vs frequency graph when I use a 42mmx28mm patch (85 mm x 85 mm ground plane) I get a positive gain. But as soon as I change it to a 60 mm x 60 mm patch (90 mm x 90 mm ground plane) the gain starts becoming negative (-3 dB to -7 dB) at the resonant frequencies.
Thanks in advance.
申明:网友回复良莠不齐,仅供参考。如需专业解答,请学习易迪拓培训专家讲授的CST视频培训教程。
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