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Antennas for Mobile Communications: CDMA, GSM, and WCDMA 109
L-probe feed
Plastic screw
Sidewalls
Din-connector
Figure 3.8 Geometry of the 90° linearly polarized antenna array (without
8
slotted sidewalls) (© 2005 IEEE)
3.0
2.5
SWR 2.0
1.5
1.0
0.80 0.85 0.90 0.95 1.00
Frequency (GHz)
With cutting slots Without cutting slots
Figure 3.9 Measured standing wave ratio of the 90° linearly polarized
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antenna array (© 2005 IEEE)
