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This paper presents a compact GPS/BT/WiFi triple-band triple-mode RF front-end module (FEM) with Si-based embedded actives and LTCC-based embedded passives. The proposed RF FEM consists of a triplexer, baluns, matching circuits in the LTCC substrate, and a PA, an LNA, a SAW filter on the LTCC substrate. Furthermore, the proposed FEM has a silicon module on top of the LTCC substrate in which three...
In this paper, a novel integrated dual-mode RF FEM for Wireless Fidelity (Wi-Fi) and Bluetooth application is realized by low temperature co-fired ceramic (LTCC) technology. The proposed dual-mode RF FEM has 4 ports and consists of a novel selectable filter, which are fully embedded in the LTCC substrate, and 3 PIN diodes at each port except antenna port for shortening to the ground or not. This selectable...
A compact BT/WiFi dual-band dual-mode RF front-end module (FEM) with LTCC-based embedded passives is presented in this paper. The proposed RF FEM is composed of a diplexer, three baluns, and a matching network, which are realized in the LTCC substrate. Furthermore, an SPDT, an SP3T, a dual-band power amplifier, and low noise amplifiers are placed on top of the substrate. The compact and low-profile...
In this paper, a compact Wi-Fi/WiMAX RF quad-band front-end module (FEM) is designed and implemented in order to meet this multi-mode trend. A quad-band FEM consists of 2- and 5-GHz Wi-Fi bandpass filters (BPFs), a 3-GHz WiMAX BPF, and two diplexers based on LTCC technology. In addition, a 5-GHz film bulk acoustic wave resonator (FBAR) filter, a single pole double throw (SPDT), and a single pole 4...
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