Compact And High Gain Wire-Structured Pentagonal Antenna For Hf Communication

A novel V-shape wire-structured pentagonal HF antenna is developed. The parasitic guys and convex pentagon-shape arms are used to reduce the VSWR of the antenna at lower band. A computer model of the antenna is established to simulate the VSWR, gain and radiation pattern. The simulated and measured results show that the VSWR of this antenna is within 2.55:1 over 3 similar to 30 MHz and the average power gain is about 11 dBi.