Basic Antenna Principles for Mobile Communications
Basic Antenna Principles for Mobile Communications
Basic Antenna Principles for Mobile Communications
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Figure 30: Horizontal diagram of rear-mounted antennas<br />
10<br />
3<br />
dB<br />
Car antenna mounted on the car roof<br />
with 4 dB gain,<br />
mounting point: left wing, 453 MHz<br />
0<br />
10<br />
3<br />
0<br />
dB<br />
Car antenna mounted on the car roof<br />
length 900 mm,<br />
mounting point: left wing, 453 MHz<br />
Figure 31: 900 MHz rear mounted antennas<br />
λ /2<br />
890 – 960 MHz<br />
Phase Converter<br />
λ /2<br />
10<br />
3<br />
dB<br />
Coaxial<br />
cable<br />
0<br />
900 MHz rear-mounted antenna with elevated<br />
radiator base, mounted on the left<br />
wing<br />
– B 22 –
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