2) Effect of antenna distance from GND on gain

This shows how the distance between the antenna and the GND influences antenna performance.

 

・ Both bandwidth and average antenna gain of V-polarization in YZ-plane tended to improve by increasing the of distance G1 as shown in Fig.2-1 and Fig.2-2.
・ When G1 is lengthened from 2.5mm to 15mm the bandwidth and average antenna gain improved by 2.49MHz and 2.53dB.
・ G2 distance in Fig. 2-3 and Fig. 2-4 has a similar effect on bandwidth and gain. It improved 2.59MHz and 2.62dB.

 

 

 

 

 

 

 

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