Abstract

This paper presents the results of a low-temperature co-fired ceramic (LTCC) module for tri-band GPRS mobile applications. The proposed transceiver module integrates the tri-band (EGSM/DCS/PCS) antenna switch, surface acoustic wave (SAW) filters for band selection, and a fully integrated tri-band transceiver IC into one LTCC package. Integrated passive devices include the diplexer, low-pass filters for harmonic rejection, transmission lines, and circuit elements for wiring/impedance matching. The module size is 13.8 mm/spl times/8.1 mm, with a packaged height of 1.8 mm. The module is compliant with the ETSI regulations and is currently working on commercially available mobile phones.

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