Page 252 - Antennas for Base Stations in Wireless Communications
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New Unidirectional Antennas for Various Wireless Base Stations 225
0
0 330 30 Eco
Hco
−10
300 60
−20
−30 270 90
−20
240 120 Conventional dipole
−10
0 210 150
180
0
0 330 30 Eco
Hco
−10
300 60
−20
−30 270 90
−20
240 120 Planar flat dipole
−10
0 210 150
180
0
0 330 30 Eco
Hco
−10
300 60
−20
−30 270 90
−20
240 120 Unidirectional
−10 complementary
antenna
0 210 150
180
Figure 6.18 Radiation patterns for conventional dipole, planar dipole,
and unidirectional complementary antenna at the center frequency of
2.5 GHz 41
