User Guide

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Castellation Version Reference Design
The castellation connection for the antenna on the pre-certified version
allows the use of embedded antennas as well as removes the cost of
a cable assembly for the u.FL connector. However, the PCB design
and layer stack must follow one of the reference designs for the
certification on the HUM-900-PRO-CAS to be valid. Figure 109 shows
the PCB layer stack that should be used. Figure 110 shows the layout and
routing designs for the different antenna options. Please see the antenna
data sheets for specific ground plane counterpoise requirements.
Top Layer
Dielectric 1
Mid-Layer 1
Dielectric 2
Mid-Layer 2
Dielectric 3
Bottom Layer
Layer Name Thickness Material
1.4mil
1.4mil
1.4mil
1.4mil
14.00mil
14.00mil
28.00mil
Copper
Copper
Copper
Copper
FR-4 (Er = 4.6)
FR-4 (Er = 4.6)
FR-4 (Er = 4.6)
140
200
165
470
230
230
165
ANT-916-SP
ANT-916-PW-LP ANT-916-PW-RA
ANT-916-CW-QW ANT-916-CW-HW ANT-916-WRT-RPS
Microstrip Width = 24mil
Ground plane on Mid-Layer 1
Units are in mils
619
361
72
35
35
CONREVSMA003.062
380
320
216
Figure 110: HumPRO
TM
Series Transceiver Castellation Version Reference Design
Figure 109: HumPRO
TM
Series Transceiver Castellation Version Reference Design PCB Stack
Note: The PCB design and layer stack for the HUM-900-PRO-CAS
must follow these reference designs for the pre-certification to be valid.
The HUM-900-PRO-UFL and the HUM-900-PRO-CAS must use one of
the antennas in Figure 108 in order for the certification to be valid.
The HUM-900-PRO has not been tested and requires full compliance
testing in the end product as it will go to market.
All modules require unintentional radiator compliance testing in the end
product as it will go to market.