A 79-GHz LTCC RF-Frontend for Short-Range Applications

Description

An RF-frontend based on low temperature co-fired ceramic (LTCC) technology is presented in this paper. The frontend is designed for the 76 − 81 GHz frequency band, using high-permittivity material (ǫr = 7.4) and a 4-channel transceiver chip based on SiGe technology. A bond matching structure was designed with two-stage quarter-wavelength transformer, and a laminated waveguide (LWG) was chosen as transmission line in LTCC. A transition transfers energy from the differential microstrip lines into the LWG. An LWG-fed patch array antenna acts as transmit and receive antenna. A frequency-modulated continuous-wave radar sensor was built with the frontend in combination with a baseband board. The functionally of the RFfrontend was verified by distance measurements. This compact, low-cost LTCC frontend is suitable for short-range applications.

Period	09 Jun 2011
Event title	International Microwave Symposium 2011 (IMS 2011)
Event type	Conference
Location	United StatesShow on map