公开(公告)号：US20190157760A1

公开(公告)日：2019-05-23

申请号：US16194866

申请日：2018-11-19

申请人： UNIVERSITY OF NEW HAMPSHIRE

发明人： Rudra TIMSINA ,  Richard MESSNER

IPC分类号： H01Q3/38 ,  H01Q21/00

摘要： This disclosure is generally directed to a microstrip phased array antenna with a switch line phase shifter to obtain steerable beam pattern. In an embodiment, the microstrip phased array antenna includes a plurality microstrip lines disposed/patterned on a substrate to form a relatively compact phase shifter network that can switchably introduce phase shifts into an RF signal. In particular, each phase shifter of the phase shifter network may be formed from a number of equal-length RF lines that extend from a common point and “loop” to form substantially circular paths. The common point from which each of the RF lines extend may include a VIA to couple to an antenna device. A plurality of switches, e.g., PIN diodes, may be disposed along the RF lines to switchably extend the overall length of each of the phase shifters, and more particularly each transmission line, to selectively introduce a target phase shift.