Abstract
Nowadays CDMA and GSM modem technology are still widely used by the community, especially in rural areas and small towns that are quite far from the BTS location. This paper designs the Yagi-Uda antenna for CDMA modems on the 800 MHz frequency. The number of elements used is 1 driven, 1 reflector and 16 directors. The antenna design simulation uses NEC-Win Pro 1.6 and Ansoft HFSS 13.0 software. Simulations using NEC-Win get VSWR values 1.59 and S11 -13 dB (uses Matlab). Next, the simulation using Ansoft HFSS obtained the results of VSWR 200000 and S11 -9 dB. The simulation results also show that antenna design already has a directional radiation pattern.
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