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| Abstract |
This paper presents a posted T-monopole antenna with two parasitic inverted-L elements. Its impedance bandwidth is enhanced up to 24% (S11<-10dB) by asymmetrical placing of the parasitic elements. Quasi omni-directional radiation pattern with the horizontal pattern degradation of 2dB is also confirmed. These results are obtained by using the method of moment, and the validity of them are confirmed by experiments. |