77 GHz center-fed differential microstrip antenna array

Description

A differential microstrip antenna array design for millimeter-wave applications is presented. The antenna is fed by coupled microstrip lines, which facilitates the integration of antennas and differential circuits in RF-front systems. In this work, such an antenna array was designed for an autonomous cruise control application at 77 GHz. The antenna array has a bandwidth of 2 GHz at -10 dB return loss. The radiation patterns of co-polarization are stable over the bandwidth due to the center-fed structure. The 3 dB beam widths are 28 degrees and 78 degrees in the E-plane and the H-plane, respectively, and cross-polarization is very low. The measurement results are in good agreement with the simulation results.

Period	12 Apr 2011
Event title	5th European Conference on Antennas and Propagation (EUCAP), 2011
Event type	Conference
Location	ItalyShow on map