Data Sheet

ISM4343 Specification
DOC-DS-20074-5.3
Inventek Systems
Page 52
15 ISM4343-WBM-L54 Mechanical Specifications
15.1 ISM4343-WBM-L54 Dimensions top view (mm)
The ISM4343-WBM-L54 module is footprint compatible with Inventek’s standard 44 pin LGA
footprint minus the extra 10 inside pads (Pins 45-54).
15.2 ISM4343-WBM-L54 Module’s Dimensions Top View (mm)
Chip Antenna Keep out Area
” Keep out” area should ideally have the antenna hanging off
the side of the PCB for best performance. If you do not
hang the antenna off the PCB, ensure no FR4 or ground
planes or traces are placed under the antenna (keep out
area). Surrounding metal will affect the antenna
performance. Inventek recommends a 9mm clearance on all
three sides. The external antenna does not require “keep out”
area.