Modelling of Antenna Open Half Lamda using Automatic Antenna Plotter Detector Testing at UHF Broadcast Frequency

Author

Budi Herdiana, S.T., M.T.

Abstrak

Dipole antennas are quite popular in various research in the field of antenna technology. Many models and modifications have been made to obtain optimal performance according to the application field. Of the many models of this antenna, it turns out that not many of this type of antenna has the same function as a transmitting and receiving antenna. Therefore, the aim to be achieved in this research is to model a half-wavelength open UHF dipole antenna to work well on UHF broadcast frequency allocation. The method to realize this is using a comparative test approach, which begins with designing a physical model of the antenna, then it is tested by an antenna plotter detector automatically, the result is a visualization of the shape of the antenna radiation pattern. From this radiation pattern, the gain angle area, transmit power, receiving power, and Return Loss will be seen. Based on the test results, the maximum transmit power of each antenna is 121 mWatt and the received power is 97 mWatt with a return loss value of -18.78 dB at the broadcast UHF frequency of 428.5 MHz.