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disclosed in whole or in part without prior written permission of AzureWave.
2.3 Antenna Installation Guide
The AW-CU427-USB includes an integrated omnidirectional antenna. Hence, the dongle can be
seen as an antenna.
Objects close to the antenna (the dongle) become new sources for radiation from far field
perspective. This can be a problem if those objects are electrically large. Recommended
minimum clearance is 20mm for conductive materials and 10mm for non-conductive materials.
Failing to meet the clearance requirements will detune the antenna and the radiation pattern may
not be omnidirectional.
Use AT command
AT+WIFI_On
and
AT+WIFI_Scan
to check if the RSSI (Received Signal
Strength Indication) is good (>-65dBm) or not. If not, adjust the setup until the RSSI >-65dBm.
The examples below are antenna radiation patterns with different setups:
Steel Desk & Chair + Horizontal Position
Steel Desk & Chair + Horizontal Po Close to Desk Edge
