2) Antenna properties and the distance between the chip antenna and the GND

This experiment investigated how the distance between antenna and GND influences the antenna performance.


・Both bandwidth and average antenna gain of V-polarization in YZ-plane tended to improve by increasing the of distance of G1 as shown in Fig.2-1 and Fig.2-2, respectively.
・When G1 is enlarged from 2.5mm to 15mm , bandwidth and average antenna gain were improved by 2.49MHz and 2.53dB, respectively.
・As shown in Fig.2-3 and Fig.2-4 it was found that distance G2 has similar effect on the bandwidth and gain properties. The improvements were 2.59MHz and 2.62dB, respectively.








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