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ANTENTOP- 02- 2004, # 006  

Multirange  Trap Antennas




Current Distribution at 10 meters


Current Distribution at 15 meters



Figure 2 Antenna WA1LNQ



Diagram Directivity and Input Impedance at 10 meters W1LNQ Antenna




MMANA (MININEC based). Section A has diameter of 24 millimeters, section B has diameter of 18 millimeters.

Antenna input impedance. Vertical Trap antenna: You can see that only first antenna part, it is section A at Figure 1, has length in lambda/4. So, the input

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