Title :
A Broadband Waveguide-to-Microstrip Transition/Power Splitter Using Finline Arrays
Author :
Lou, Yu ; Xue, Quan ; Chan, Chi Hou
Author_Institution :
Wireless Commun. Res. Center, City Univ. of Hong Kong
fDate :
4/1/2007 12:00:00 AM
Abstract :
A broadband waveguide-to-microstrip transition/ power splitter, using a finline array for waveguide mode termination and then transferring the energy to microstrip lines with a broadband slot-to-microstrip transition, is presented. A single back-to-back and a four-element transition covering the X-band were designed, fabricated, and tested. Adapting the concept of microstrip-slot pulse inverter, another two-element array is also fabricated with wideband 180deg out-of-phase outputs. The effects of the waveguide grooves for mounting the substrate are also investigated. By using multiple finline tapers on one substrate, the proposed structure can be employed in spatial power combining/dividing applications
Keywords :
fin lines; microstrip transitions; power combiners; broadband slot-to-microstrip transition; broadband waveguide-to-microstrip transition; finline arrays; microstrip-slot pulse inverter; multiple finline tapers; phase reversal; power combining; power dividing; power splitter; substrate mounting; two-element array; waveguide grooves effect; waveguide mode termination; Finline; Microstrip antenna arrays; Millimeter wave integrated circuits; Planar transmission lines; Probes; Pulse inverters; Rectangular waveguides; Slotline; Waveguide transitions; Wideband; Finline-to-microstrip transition; phase reversal; power combining/dividing; waveguide-to-microstrip transition;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.892993