Title :
Phase shifter based on DDS-driven offset-PLL
Author :
Avitabile, G. ; Cannone, F. ; Vania, A.
Author_Institution :
Dept. of Electr. & Electron., Bari Univ.
Abstract :
A new topology for phase-shift control in the transmitter module of phased array antennas is introduced. The proposed structure is based on a hybrid DDS-PLL approach. An offset-PLL evolution is proposed in order to preserve phase resolution, along with a maximum phase shift of 360deg. Experimental results obtained by a prototype are reported, validating the architecture potentialities
Keywords :
antenna accessories; antenna phased arrays; digital phase locked loops; direct digital synthesis; phase shifters; transmitting antennas; DDS-driven offset-PLL; architecture potentialities; maximum phase shift; phase resolution; phase shifter; phase-shift control; phased array antennas; topology; transmitter module;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063313
