Title :
Compact folded line rat-race hybrid couplers
Author :
Settaluri, Raghu K. ; Sundberg, G. ; Weisshaar, A. ; Tripathi, V.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
A new, compact folded line configuration for rat-race hybrid couplers is proposed. Simple design equations are presented for the single and double C-section folded line structures. The new configuration exhibits a four- to fivefold reduction in footprint as compared to the conventional rat-race configuration. The design is validated both by using the full-wave electromagnetic simulator and with measurement.
Keywords :
S-parameters; coupled transmission lines; waveguide couplers; design equations; double C-section; folded line rat-race hybrid couplers; full-wave electromagnetic simulator; single C-section; Couplers; Couplings; Electromagnetic measurements; Equations; Geometry; Power transmission lines; Radio frequency; Scattering parameters; Strips; Transmission line measurements;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
