NDLI: Design of an LTCC switch diplexer front-end module for GSM/DCS/PCS applications

Content Provider	IEEE Xplore Digital Library
Author	Lucero, R. Qutteneh, W. Pavio, A. Meyers, D. Estes, J.
Copyright Year	2001
Description	Author affiliation: Integrated RF Ceramics Center/Solid State Res. Center, Motorola Labs., Tempe, AZ, USA (Lucero, R.)
Abstract	This paper presents the results of an antenna switch/filter module integrating GSM/DCS/PCS diplexer functions and Rx/Tx antenna switching on a low temperature co-fired ceramic (LTCC) substrate. Although the RF front-end module (FEM) was configured for dual-band (GSM/DCS) applications, the high pass filter function was designed to operate in the PCS band as well. Harmonic filtering was included in the diplexer design, which reduced the filtering requirements for the power amplifier. The 50-ohm in/out FEM utilized GaAs PHEMT switches and associated bias passives surface mounted on the LTCC substrate. S-parameter characterization of the FEM demonstrated excellent insertion and return loss characteristics. For GSM, the return and insertion losses measured at 912 MHz were better than 28 dB and less than 1.7 dB, respectively. Similarly, for DCS applications, the return and insertion losses at 1.77 GHz were better than 19 dB and less than 1.5 dB, respectively. In both cases, the design approach yielded excellent agreement between measured and simulated results.
Starting Page	213
Ending Page	216
File Size	380436
Page Count	4
File Format	PDF
ISBN	0780366018
ISSN	15292517
DOI	10.1109/RFIC.2001.935678
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Switches GSM Distributed control Personal communication networks Band pass filters Power harmonic filters Insertion loss Filtering Temperature Ceramics
Content Type	Text
Resource Type	Article

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