UHF antenna described in the article A. Manakova, can be improved by adding three more elements. The gain of the modified antenna has increased significantly, which gives a great advantage when used in both indoor and outdoor version.

The antenna design shown in the figure, the dimensions in the table. For making possible to use wire of copper or brass with a diameter of 3...5 mm. Wire consistently curved shape shown in the figure, the joints are soldered. For greater structural strength before brazing the joints can be pulled away a thin copper wire.

Antenna for UHF-band

The antenna cable is soldered at the points"A" and"b". At point "C" cable-connects to the material of the antenna.

Channels

W, mm

G, mm

W, mm

D, mm

Mm

P,

mm

And,

mm

B,

mm

And,

mm

To, mm

L,

mm

Sh mm

21 26

68

90

112

134

158

193

67

98

55

43

31

150

27 32

56

78

100

122

144

176

61

89

49

37

25

138

33 40

44

66

88

110

131

160

55

80

43

31

19

124

41 49

33

55

77

99

117

143

50

72

38

27

16

109

50 58

24

45

67

89

105

129

45

69

34

21

12

99

59 68

17

38

59

81

96

113

41

59

30

18

8

96

69 80

10

31

52

73

86

106

37

53

26

14

4

81

Author: W. Caturano, Gomel; Publication: N. Bolshakov, rf.atnn.ru

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