Compact Waveguide-to-Microstrip Transition with Embedded Power Divider for mmWave Antenna Array Applications
Journal
2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings
Pages
1687-1688
Date Issued
2018
Author(s)
Abstract
This paper presents a novel waveguide-to-microstrip transition with an embedded 1:4 power divider for millimeter-wave antenna array applications. The proposed transition design consists of a machined spacer and a coupling patch printed on a single layer PCB substrate. Additionally, a 1:4 power divider is embedded in the coupling patch design, making the total transition area very compact. The power divider incorporates differential ports that eliminate the extra delay line and facilitate the symmetry of the feeding layout about the center of a 2D antenna array structure. The center-feeding scheme is desirable for a large antenna array as it enhances the mechanical robustness and reduces the feeding line loss simultaneously. The resultant transmission loss of the proposed transition is only 0.8 dB at 24GHz.
SDGs
Type
conference paper