Compact LTCC module for WLAN RF front-end

In this paper, a low-temperature co-fired ceramic (LTCC) module for Wireless Local Area Network (WLAN) RF front-end is proposed. The module integrates an embedded band pass filter, an embedded lumped element Wilkinson power divider, and embedded LTCC inductors and capacitors, in a single LTCC package. The circuit is separated into low-frequency circuit part and high frequency circuit part. By integrating these miniature passive component designs, using the three-dimensional multichip module multichip module (3D-MCM) technique, the proposed module features a compact size of 20mm×20mm×5mm. The measurement results show that the application meets the current electrical specification requirements of the wireless communication system compatible with IEEE802.11b/g.