Analysis of the Electrical Performance of Multituned VLF Thirteen-Tower Umbrella Antennas

Figure 2

Electrical connection of different tuning modes of thirteen-tower umbrella antenna. (a) Single-tuned thirteen-tower umbrella antenna. (b) “One main and five deputy” multituned antenna, one unit is fed, and the other five are grounded through tuning coils. (c) “One main and two deputy” multituned antenna, one unit is fed, and the other two are grounded through tuning coils. (d) “One main and one deputy” multituned antenna, one unit is fed, and the other one is grounded through the tuning coil.

(a)

(b)

(c)

(d)