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Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an
Special page devoted to
UR0GT Super- J Antenna for the 438 MHz
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ANTENTOP-
01- 2019, # 023
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UR0GT Super- J Antenna for the 438 MHz |
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The publication is devoted to the memory
UR0GT. |
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Credit Line: Forum from: www.cqham.ru
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By: Nikolay
Kudryavchenko, UR0GT |
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Super J antenna is very popular
on UHF bands. Here it is present two design of the antenna. First
design of the antenna has input impedance of 200- Ohm so it is
possible match the antenna with 50- Ohm coaxial cable with help
of 4:1 transformer. Design of Super-
J Antenna for the 438 MHz with 200 Ohm input impedance is shown in Figure
1. |
Figure 2 shows Z
of the UR0GT Super- J Antenna for the 438 MHz with 200 Ohm
input impedance. Figure 3 shows SWR of the UR0GT Super- J Antenna for the 438 MHz with 200 Ohm
input impedance. Figure 4 shows DD of the UR0GT
Super- J Antenna for the 438 MHz with 200 Ohm input impedance |
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Figure 1 Design of UR0GT
Super- J Antenna for the 438 MHz with 200 Ohm Input Impedance |
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The MMANA model of the UR0GT Super- J Antenna for the
438 MHz with 200 Ohm Input Impedance may be loaded: http: // www.antentop.org/023/UR0GT_023.htm |
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Last Updated:
December 30, 2019 21:51
