12.2 Printed PCB Antenna Performance of ATWILC1000-MR110PB
The printed PCB antenna on the ATWILC1000-MR110PB is a meandered Inverted F Antenna
(IFA). The antenna is fed via matching network, which is matched for the module
installed on 1.5 mm thick main board. Main board thickness deviation by ±1 mm changes
RX/TX performance by ±1 dB maximum referring to the RX/TX performance with the default
antenna-matching network and installed on 1.5 mm thick main board (FR-4 substrate).
Measured antenna gain is -0.3 dBi.
Antenna Radiation Pattern
The following figures illustrate the antenna radiation pattern. During the measurement,
the printed antenna is placed in the XZ plane with the Y axis being perpendicular to the
module and pointing to the back of the module. Figure 12-3. Antenna Radiation Pattern when
Phi = 0 Degree
Figure 12-4. Antenna Radiation Pattern when Phi
= 90 Degree
Figure 12-5. Antenna Radiation Pattern when
Theta = 90 Degree
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