21
Appendix C Built-in antenna
The HP 425 AP has a built-in dual-band MIMO antenna. Built-in cables connect the MIMO antenna to
the 2.4 GHz and 5 GHz antenna ports of the AP.
Table 4
Specifications
Item Specification
Standard
IEEE 802.11n and 802.11 a/b/g
Frequency range
•
2.4 to 2.49 GHz
•
4.9 to 5.9 GHz
Peak gain
•
4 dBi @ 2.4 GHz
•
5 dBi @ 5.2 GHz
VSWR 2:1
Feed impedance
50
Ω
Power handling
30 dBm
Dimensions
90 x 90 x 14.7 mm (3.54 x 3.54 x 0.58 ft)
Weight
19 g (0.67 oz)
Temperature range
•
Operating: –40° C to +75° C (–40° F to +167° F)
•
Storage: –40° C to +85° C (–40° F to +185° F)
Humidity range
0% to 95%, non-condensing
The following figures show the radiation patterns of the antenna.
Figure 18
2.4 GHz radiation pattern in the horizontal plane
