Title :
A high performance analogue time shifter for wideband phased array antennas
Author :
Lucyszyn, S. ; Robertson, I.D. ; Aghvami, A.H.
Author_Institution :
Dept. of Electron. & Electr. Eng., King´´s Coll., London Univ., UK
Abstract :
A purely analogue reflection-type time shifter is presented. Quick design equations are given that enable a traditional reflection-type phase shifter topology to emulate a true time shifter. Simulated results for an X-band design demonstrate that a high performance can be achieved over at least a 40% bandwidth, when a 3 dB Lange coupler is employed. This novel time shifter offers considerable advantages over conventional classes of time shifter, which makes it ideally suitable for high performance applications
Keywords :
MMIC; antenna accessories; antenna phased arrays; linear integrated circuits; microwave antenna arrays; microwave integrated circuits; phase shifters; Lange coupler; MMIC implementation; X-band; design equations; high performance analogue time shifter; hybrid MIC implementation; wideband phased array antennas;
Conference_Titel :
Recent Advances in Microwave Sub-Systems for Space and Satellite Applications, IEE Colloquium on
Conference_Location :
London
