Basic Antenna Principles for Mobile Communications

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Figure 10: Gain via vertical beaming 1 λ/2 dipole Half power beam width Gain (ref. λ/2 dipole) 78° 0 dB 2 λ/2 dipoles 32° 3 dB 4 λ/2 dipoles 15° 6 dB 8 λ/2 dipoles 7° 9 dB – B 8 –
dB Figure 11: 9 dB Omnidirectional Gain <strong>Antenna</strong> Radiation diagrams with relative field strength 7° 10 3 10 3 dB 0 Horizontal 0 Vertical 736 347 870 – 960 MHz – B 9 –
Page 1 and 2: Basic Antenna Principles for Mobile
Page 3 and 4: 6. Car Antennas P- 13 6.1 λ/4 Ante
Page 5 and 6: 2. Theory Antennas transform wire p
Page 7 and 8: 3.5 Impedance The frequency dependa
Page 9 and 10: 4.2 Directional Antennas 4.2.1 Gain
Page 11 and 12: 5. Particular Techniques used in GS
Page 13 and 14: - If in addition the vertical path
Page 15 and 16: 6.2 Gain Antennas The reference ant
Page 17 and 18: 6.7 Train Antennas Car antennas are
Page 19 and 20: 7.3 Shortened Antennas Shortened λ
Page 21 and 22: Figure 1: Mobile communication serv
Page 23 and 24: Figure 4: Field distribution on a
Page 25 and 26: Figure 7: VSWR, Return Loss Attenua
Page 27: Figure 9: Offset omnidirectional an
Page 31 and 32: Figure 13: Yagi - and log.-per. Ant
Page 33 and 34: Figure 15: Directional antenna syst
Page 35 and 36: Figure 18: Omni Base Station R x T
Page 37 and 38: Figure 22: X-Pol Antenna System X-P
Page 39 and 40: Figure 25: Schematic of a Patch Ant
Page 41 and 42: Figure 29: Changes in radiation pat
Page 43 and 44: Figure 32: Screen surface direct mo
Page 45 and 46: Figure 35: Train Antenna at 450 MHz

Basic Antenna Principles for Mobile Communications

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