Master Thesis

Similarly the gain plot in elevation plane is shown in the figure below. It shows a peak gain of
7.7 dB and around 4.5 at ±35 o .
Cross Polarization
Figure 5.13 Gain in Elevation
The cross polarization is shown in the figure below for both azimuth and elevation planes,
which proves good circular polarization.
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5.4 Conclusion
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0
-­‐50 -­‐40 -­‐30 -­‐20 -­‐10 0 10 20 30 40 50
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(a) (b)
Figure 5.14 Cross Polarization in azimuth (a) and Elevation (b) plane
The antenna has shown very nice results i.e. high gain, good return loss and circular
polarization. Also the gain within ±35 o is very nice. The drawback is that the size is slightly
large and also to achieve probe feeding in volume production. Both this antenna and the
antenna in chapter 4 are very similar, there is just the difference in the feeding technique,
however this antenna has shown better gain results. The beam width is more wide which
helps to achieve better gain within ±35 o .
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