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Short Five Elements Antenna for the 70- cm Band

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ANTENTOP- 01- 2016 # 020

Short Five Elements Antenna for the 70- cm Band

 

By: Yuriy Skutelis, RN3DEK

 

Credit Line: Forum at www.cqham.ru

 

 

Short Five Elements Antenna (length 50- cm) made of aluminum rod (or tube) in diameter 5- mm. Antenna designed for repeater sub- band. Antenna has gain near 7.4- dBd at 439.0- MHz. F/B at the frequency is 35.9 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 may be downloaded at: http://www.antentop.org/020/short_020.htm

 

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

 

 

 

 

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July 22, 2016 21:48

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