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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Bavisi, A. Yun, W. Sundaram, V. Swaminathan, M. |
| Copyright Year | 2005 |
| Description | Author affiliation: Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA (Bavisi, A.; Yun, W.; Sundaram, V.; Swaminathan, M.) |
| Abstract | In the recent past, fully packaged RF modules suitable for integration in wireless handsets have been fabricated on organic packaging technology that uses a single sheet liquid crystalline polymer (LCP) substrate. This paper demonstrates the RF characterization of inductors that were fabricated on two different stack-ups utilizing different configurations of the LCP substrate. The paper, then, shows the implementations of the embedded LC passives in RF front-end modules such as voltage controlled oscillators (VCOs) and tunable filters. The first application is the design and implementation of a 1.8 GHz feedback oscillator in a novel multilayer laminate-type process technology that uses three layers of LCP substrate. The microstrip type oscillator measures a phase noise of -117 dBc/Hz at 100 KHz offset at 10 mW of power consumption. The oscillator meets the stringent phase noise specifications of cellular systems for both mobile-station and base-stations. The final application of the high quality factor (Q) passives is in the design and implementation of voltage tunable filters useful for WLAN applications. The filters were fabricated on a completely different stack-up that uses two layers of LCP substrate. The filter prototype is tunable from 1.75 to 2.03 GHz with an insertion loss of 2.5 dB using lossy surface-mount varactor diodes. |
| File Size | 3757764 |
| File Format | |
| ISBN | 078039433X |
| DOI | 10.1109/APMC.2005.1606519 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-12-04 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Liquid crystal devices Crystallization Liquid crystal polymers Telephone sets Filters Radio frequency Voltage-controlled oscillators Packaging Phase noise Inductors |
| Content Type | Text |
| Resource Type | Article |
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