Fully Embedded High Q Passives and Band Pass Filters for Low Cost Organic RF SOP (System on Package) Applications

Lee, S.J.; Lee, H.H.; Park, J.Y.

doi:10.1109/ectc.2007.374080

Cited by 13 publications

(2 citation statements)

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“…To overcome some drawbacks of LTCC packaging technology, the designed passive circuit was fully embedded into a multilayered organic packaging substrate. To improve their performance characteristics and reduce its size/volume, vertically stacked spiral high Q inductors and high dielectric BaTiO3 MIM composite capacitors were newly applied [7,8]. Finally, passive quintplexer module has been demonstrated by assembling fabricated passive triplexer with DCN and PCS duplexers onto PCB evaluation board.…”

Section: Acknowledgmentsmentioning

confidence: 99%

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High‐level integrated passive triplexer and quintplexer module in organic SOP technology

Lim

Park

2009

Micro & Optical Tech Letters

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In this letter, fully embedded passive triplexer and quintplexer module into organic packaging substrate were presented for US CDMA handset applications. First, the passive triplexer was implemented by embedding all passive elements and circuits into multilayered organic packaging substrate. The passive triplexer circuit with eight passive elements was comprised of a diplexer, parallel resonator, and matching network. The size of the fabricated triplexer was 3 mm × 4 mm. The compact CDMA quintplexer module was fabricated by assembling the embedded passive triplexer with DCN and PCS duplexers on FR‐4 evaluation board. A fabricated quintplexer module exhibited an insertion loss of −2.2 dB/−2.9 dB at DCN Tx/Rx band, −3 dB/−2.7 dB at PCS Tx/Rx band, and −2.4 dB at GPS Rx band, respectively. In addition, the stop‐band attenuation is −40 dB/−44 dB at DCN Tx/Rx band, −55 dB/−45 dB at PCS Tx/Rx band, and −37 dB at GPS Rx band, respectively. Measured isolations in each Tx band are −62 dB/−58 dB at GPS/PCS of DCN band, −30 dB/−36 dB at DCN/PCS of GPS band, and −45 dB/−38 dB at DCN/GPS of PCS band. It is comparatively much higher than the matching circuit type quintplexer module, which indicates that the embedded triplexer is strongly applicable for improving the interferer blocking. The simulated performance characteristics were agreed with the simulated ones. ©2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 302–306, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24923

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Section: Acknowledgmentsmentioning

confidence: 99%

“…The 2nd and 3rd layers are utilized for making MIM capacitors with high capacitance density. Embedded circular inductors are formed onto the 1st and 3rd layer [7]. Figure 6 shows photomicrograph of fully embedded passive triplexer into eight-layered organic packaging substrate.…”

Section: Design and Fabricationmentioning

confidence: 99%