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A log-periodic antenna (LP) is a multi-element, directional antenna designed to operate over a wide band of frequencies. It was invented by John Dunlavy in 1952. The log-periodic dipole array, or LPDA, is the most common type of log-periodic antenna. The LPDA consists of a number of half-wave dipole driven elements of gradually increasing length, each consisting of a pair of metal rods. The dipoles are mounted close together in a line, connected in parallel to the feedline with alternating phase. Electrically, it simulates a series of two or three-element Yagi antennas connected together, each set tuned to a different frequency.

NOPart No.Frequency (GHz)Typical Gain (dBi)Typical VSWRConnectorRadomeCategoryPolarisationData Sheet
1 LPD-0.03-0.4-SL-NF0.03 to 0.4-10 to 6< 3.5:1 above 0.05GHzN FemaleNoLog Periodic Dipole ArraySingle Linear

2 LPD-0.03-1-SL-NF0.03 to 1-10 to 6< 3.5:1 above 0.05GHzN FemaleNoLog Periodic Dipole ArraySingle Linear

3 LPD-0.03-2-SL-NF0.03 to 2-10 to 6< 3.5:1 above 0.05GHzN FemaleNoLog Periodic Dipole ArraySingle Linear

4 LPD-0.03-3-SL-NF0.03 to 3-10 to 6< 3.5:1 above 0.05GHzN FemaleNoLog Periodic Dipole ArraySingle Linear

5 LPD-0.04-3-SL-NF0.04 to 3-10 to 6< 3.5:1 above 0.05GHzN FemaleNoLog Periodic Dipole ArraySingle Linear

6 LPD-0.1-1-SL-NF0.1 to 12 to 8< 2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

7 LPD-0.1-2-SL-NF0.1 to 22 to 8< 2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

8 LPD-0.1-3-SL-NF0.1 to 32 to 8< 2.2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

9 LPD-0.1-4-SL-NF0.1 to 42 to 8< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

10 LPD-0.1-6-SL-NF0.1 to 60 to 6< 3:1N FemaleNoLog Periodic Dipole ArraySingle Linear

11 LPD-0.2-1-SL-NF0.2 to 12 to 7< 2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

12 LPD-0.2-2-SL-NF0.2 to 22 to 7< 2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

13 LPD-0.2-3-SL-NF0.2 to 32 to 7< 2.2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

14 LPD-0-2-4-SL-NF0.2 to 42 to 7< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

15 LPD-0.2-6-SL-NF0.2 to 60 to 7< 3:1N FemaleNoLog Periodic Dipole ArraySingle Linear

16 LPD-0.5-2-SL-NF0.5 to 24 to 8< 2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

17 LPD-0.5-3-SL-NF0.5 to 34 to 8< 2.2:1N FemaleNoLog Periodic Dipole ArraySingle Linear

18 LPD-0.5-4-SL-NF0.5 to 43 to 8< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

19 LPD-0.5-6-SL-NF0.5 to 62 to 8< 3:1N FemaleNoLog Periodic Dipole ArraySingle Linear

20 LPD-0.5-8-SL-NF0.5 to 82 to 8< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

21 LPD-1-3-SL-NF1 to 34 to 8< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

22 LPD-1-6-SL-NF1 to 64 to 8< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

23 LPD-1-8-SL-NF1 to 82 to 8< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

24 LPD-2-8-SL-NF2 to 84 to 9< 2.5:1N FemaleNoLog Periodic Dipole ArraySingle Linear

25 LPD-0.03-1-DL-NF0.03 to 0.4-10 to 6< 3.5:1 above 0.05GHz2 x N FemaleNoLog Periodic Dipole ArrayDual Linear

26 LPD-0.03-1-DL-NF0.03 to 1-10 to 6< 3.5:1 above 0.05GHz2 x N FemaleNoLog Periodic Dipole ArrayDual Linear

27 LPD-0-03-2-DL-NF0.03 to 2-10 to 6< 3.5:1 above 0.05GHz2 x N FemaleNoLog Periodic Dipole ArrayDual Linear

28 LPD-0.03-3-DL-NF0.03 to 3-10 to 6< 3.5:1 above 0.05GHz2 x N FemaleNoLog Periodic Dipole ArrayDual Linear

29 LPD-0.04-3-DL-NF0.04 to 3-10 to 6< 3.5:1 above 0.05GHz2 x N FemaleNoLog Periodic Dipole ArrayDual Linear

30 LPD-0.1-1-DL-NF0.1 to 10 to 8< 2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

31 LPD-0.1-2-DL-NF0.1 to 20 to 8< 2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

32 LPD-0.1-3-DL-NF0.1 to 30 to 8< 2.2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

33 LPD-0.1-4-DL-NF0.1 to 40 to 8< 2.5:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

35 LPD-0.2-1-DL-NF0.2 to 11 to 7< 2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

36 LPD-0.2-2-DL-NF0.2 to 21 to 7< 2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

37 LPD-0.2-3-DL-NF0.2 to 31 to 7< 2.2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

38 LPD-0.2-4-DL-NF0.2 to 41 to 7< 2.5:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

40 LPD-0.5-2-DL-NF0.5 to 22 to 8< 2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

41 LPD-0.5-3-DL-NF0.5 to 32 to 8< 2.2:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

42 LPD-0-5-4-DL-NF0.5 to 42 to 8< 2.5:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear

43 LPD-1-3-DL-NF1 to 34 to 8< 2.5:12 x N FemaleNoLog Periodic Dipole ArrayDual Linear