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Leaky coaxial cables
Category: Communication cable  Publish Time: 2010-04-03 14:55 
Leaky coaxial cables are used whenever normal radio communication is difficult or impossible in particular in communication systems where a discrete antenna would not provide adequate coverage.A radiating cable functions both as a transmission line and as an antenna. Leaky coaxial cable series are manufactured by abrading the peaks of corrugation along the cable axis with the imported multi-directional slotting machine.The evenly-distributed relatively strong radiating signal in the close vicinity of the cable along its axis makes it possible the signal-transmission across long distance in the uncovered area by the discrete antenna

Construction

Item

1-5/8”

1-1/4”

7/8”

1/2”

3/8”

-1

-2

-1

-2

Inner Conductor(mm)

Corrugated Cu-tube

Smooth Cu-tube

CCA

17.3

17.3

13.10

9.05

4.80

4.80

3.15

Braid Shield(mm)

46.5

46.5

35.8

24.9

13.8

13.8

9.5

Jacket(mm)

50.0

50.0

39.4

27.5

15.8

15.8

11.2

Mechanical Characteristics

Minimum Bending Radius(10)(mm)

510

510

400

280

125

125

95

Max.Pulling Strength(N)

3630

3630

5900

1470

1130

1130

800

Electrical Characteristics

DC Resisitance≦
(Ω/km)(20℃)

Inner conductor

0.83

0.83

0.72

1.05

1.48

1.48

3.48

Outer conductor

0.70

0.60

0.62

1.36

2.20

2.30

3.30

Capacitance(pF/m)

76.0

76.0

75.0

76.1

75.8

75.8

75.0

Impedance(Ω)

50±2

50±2

50±2

50±2

50±2

50±2

50±2

Velocity Ratio(%)

88

88

89

89

88

88

88

Attenuation

Attenuation(20℃)(dB/100m)Max

150MHz

0.8

1.0

1.3

1.8

3.3

3.6

4.9

450MHz

2.0

2.5

3.0

3.6

6.6

8.2

8.5

900MHz

2.7

3.3

4.0

5.1

9.5

11.8

12.1

1800MHz

4.4

5.1

5.6

7.6

13.1

16.1

17.4

2400MHz

5.6

6.4

6.9

9.2

15.7

19.0

/

Coupling Loss(2m)(dB±10dB)

150MHz

71

60

64

62

58

52

56

450MHz

80

67

75

72

63

57

61

900MHz

79

68

77

72

68

63

68

1800MHz

89

78

84

84

73

69

74

2400MHz

89

84

76

76

73

69

/

VSWR

0.01GHz-3GHz


1.25