ANTENTOP- 01- 2016 # 020

Broadband Five Elements Antenna for the 70- cm Band

By: Yuriy Skutelis, RN3DEK

Credit Line: Forum at www.cqham.ru

Broadband Five Elements Antenna (length 50- cm) designed on the base of Short Five Elements Antenna for the 70- cm Band (Antentop 01- 2016). The antenna has low SWR at the upper edge of the 70- cm Band. Antenna made of aluminum rod (or tube) in diameter 3- mm. Antenna has gain near 7.2- dBd at 439.0- MHz. F/B at the frequency is 35.3 dB.

Antenna input impedance is 50- Ohm. It allows feed the antenna directly by 50- Ohm coaxial cable. Figure 1 shows design of the antenna. Figure 2 shows Z of the antenna. Figure 3 shows SWR of the antenna. Figure 4 shows DD of the antenna.

MMANA file of the antenna mat be downloaded at: http://www.antentop.org/020/broadband_020.htm

Figure 1 Broadband Five Elements Antenna for the 70- cm Band

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