Motorola 5440SM - Canopy 5.4 GHz Subscriber Module Guía de usuario descargar pdf (Pagina 42)

Release 9.4.2 Release Notes

Issue 1, May 2009 Page 42

Variable

Band

Antenna

(calcu-

lated)

Recom-

mended

Separation

Distance

Power

Compliance

Margin

external

0.4 W

(26 dBm)

10.0

(10 dB)

6 W/m

23 cm

60 cm

(24 in)

integrated

0.25 W

(24 dBm)

15.8

(12 dB)

6 W/m

23 cm

60 cm

(24 in)

900 MHz

indoor, integrated

Simulation model used to estimate Specific

Absorption Rate (SAR) levels

10 cm

(4 in)

integrated

0.34 W

(25 dBm)

6.3

(8 dB)

W/m

13 cm

20 cm

(8 in)

2.3

2.4 GHz

integrated

plus reflector

0.34 W

(25 dBm)

79.4

(19 dB)

W/m

46 cm

1.5 m

(5 ft)

integrated

0.2 W

(23 dBm)

5.0

(7 dB)

W/m

9 cm

20 cm

(8 in)

integrated plus

reflector

0.0032 W

(5 dBm)

316

(25 dB)

W/m

9 cm

1.5 m

(5 ft)

279

5.2 GHz

integrated plus

LENS

0.025 W

(14 dBm)

(16 dB)

W/m

9 cm

50 cm

(12 in)

integrated

0.2 W

(23 dBm)

5.0

(7 dB)

W/m

9 cm

20 cm

(8 in)

integrated plus

reflector

0.0032 W

(5 dBm)

316

(25 dB)

W/m

9 cm

1.5 m

(5 ft)

279

5.4 GHz

integrated plus

LENS

0.020 W

(13 dBm)

(17 dB)

W/m

9 cm

50 cm

(12 in)

integrated

0.2 W

(23 dBm)

5.0

(7 dB)

W/m

9 cm

20 cm

(8 in)

integrated plus

reflector

0.2 W

(23 dBm)

316

(25 dB)

W/m

71 cm

1.5 m

(5 ft)

4.5

5.7 GHz

Integrated plus

LENS

0.2 W

(23 dBm)

(17 dB)

W/m

28 cm

50 cm

(12 in)

3.13

The Recommended Separation Distance is chosen to give significant compliance margin in all

cases. It is also chosen so that a given item (bare module, reflector, or LENS) always has the

same distance, regardless of frequency band, to simplify following exposure distances in the field.

These are conservative distances:

 They are along the beam direction (the direction of greatest energy).

Exposure to the sides and back of the module is significantly less.

 They meet sustained exposure limits for the general population (not just

short-term occupational exposure limits), with considerable margin.

 In the reflector cases, the calculated compliance distance d is greatly

overestimated because the far-field equation models the reflector as a point

source and neglects the physical dimension of the reflector.

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