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20 to 90GHz Broadband Characterization of LTCC Materials for Transceiver Modules and Integrated Antennas
Keywords: LTCC, Microwave, Packaging
Automotive radar applications demand a low cost, highly functional and reliable materials system for integrating the transceiver and antenna functions into a single module package. Low loss LTCC (Low Temperature Co-Fired Ceramic) materials are well positioned as a module and packaging solution due to its long history of use in military radar applications, as well as, use in high volume commercial applications such as Bluetooth and WLAN FEMs. The advantages of LTCC have been well documented, but electrical characterization of LTCC with Ag based conductors is not readily available for designers that are challenged with implementing 24GHz and 77GHz radar sensors into the automobile. This presentation will discuss the use and characterization of LTCC material sets with Ag conductors from 20 to 110GHz for the purpose of understanding dielectric constant and attenuation for future designs in specific frequency ranges and transitions to antenna elements over automotive reliability testing methods.
Matthew R. Walsh, Advanced Microwave Packaging Engr. Group Mngr.
Kokomo, IN

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