5.8 GHz One Antenna Reflective Tag
CHR2244-QDG
Evaluation board
Important notice / design recommendations
Device slug should be connected to RF ground plane through multiples vias (>=9).
An external matching may be required to optimize RF performances on 50Ω impedance, versus
substrate height.
A RF ground plane height of 0.008” (0.203mm) under the component (evaluation board) provides the
highest RF performances thanks to low RF ground inductance and low pin to pin coupling.
Ref. :DSCHR2244-QDG9030 - 30 Jan 09
9/14
Specifications subject to change without notice
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UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
