Title :
An ultrawideband microwave phase shifter
Author :
Russat, J. ; Nicolaï, J.P. ; Morvan, P. ; Fel, N.
Author_Institution :
Centre de Bruyeres-le-Chate, CEA, France
Abstract :
In this paper, we present a new kind of high-frequency analog phase shifter suitable for ultrawide-band operation. Phase tuning is obtained with a local oscillator (LO) producing two coherent phase-shifted signals which are mixed with the incident radio-frequency (RF) signal. Measurements on a prototype exhibit a 20:1 operational bandwidth. We discuss system design rules and bandwidth limitations
Keywords :
analogue integrated circuits; circuit tuning; microwave circuits; microwave phase shifters; varactors; bandwidth limitations; coherent phase-shifted signals; high-frequency analog phase shifter; incident radio-frequency signal; local oscillator; operational bandwidth; phase tuning; system design rules; ultrawideband microwave phase shifter; Bandwidth; Local oscillators; Microwave devices; P-i-n diodes; Phase shifters; Prototypes; RF signals; Radar antennas; Radio frequency; Switching circuits;
Conference_Titel :
Microwave and Optoelectronics Conference, 1997. Linking to the Next Century. Proceedings., 1997 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
0-7803-4165-1
DOI :
10.1109/SBMOMO.1997.648787
