.3 Mm Of Ltcc Transceiver Components Research

Low-Temperature Co-fired Ceramic (LTCC) technology is one type of co-fired ceramic Multi-Chip Module (MCM), which is a high-integrated and multilayer-printed packaging. Its three-dimension (3D) structure can improve performances and decrease volume of microwave and millimeter-wave circuits and systems.The main work in this thesis is to find an effective way to design some key components for the system at W-band, such as waveguide to microstrip transitions, power dividers and filters. Finally, we make a reliable W-band transceiver using the above techniques.Firstly, it lays a good foundation for later system implement and tune work, by introducing some related domestic and foreign LTCC technology development. Then, to the acknowledge of the author, Waveguide-SIW-Microstrip transition, and a novel probe transition of Waveguide to Microstrip are proposed at W-band with LTCC technology, which illustrate an effective bandwidth ranging from 93 to 100GHz with insertion loss -2dB and return loss -10dB and satisfy the demand of 3mm LTCC transceiver. The proposed construction can be also readily applied at Ka-band. What is more, to pump the LOs to transceiver and transmitter respectively, two broadband power dividers at W-band are designed by microstrip and SIW respectively which can get an effective bandwidth wider than 15GHz; then several bandpass filters at some target frequencies are designed. These filters occupy very small volume and can be realized easily with LTCC technology. The multi-layer structures ask for an intensive EMC (Electro Magnetic Compatibility) consideration, thus this thesis also tries to analyze some aspects in this issue, in order to prevent some potential problems from engineering prospective. Finally, a W-band transceiver using the above techniques is designed.