ANTENTOP- 01- 2013 # 017

All- Metal Three Element Antennas for the 145- MHz Band

Figure 2 Antenna Mast with the All- Metal Three Element Antenna

Figure 3 Close View of the All- Metal Three Element Antenna on the Mast

UA0SNM states that in his case the antenna has input impedance close to 50- Ohm. It allows feed the antenna with 50- Ohm coaxial cable. Gain of the antenna was 11- dB. Antenna radiates radio wave with both vertical and horizontal polarization. It allows make QSOs with radio stations where used to antennas with vertical or horizontal polarization.

Igor, RW4HFN, made a file MMANA for the antenna. The file was simulated in the MMANA. Figure 4 shows input impedance of the All- Metal Three Element Antenna. Figure 5 shows SWR of the All- Metal Three Element Antenna. Figure 6 shows DD of the All- Metal Three Element Antenna.

Figure 4 Input Impedance of the All- Metal Three Element Antenna

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