Title :
Broadband waveguide-based spatial combiners
Author :
Alexanian, A. ; York, R.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
An array of tapered slotlines is inserted between rectangular waveguides. Results for a 2/spl times/4 active array at X-band are presented, indicating good combining efficiency and thermal properties as well as excellent bandwidth. To increase the device packing density and remove the lower cutoff frequency of the rectangular waveguide a coaxial combiner is also proposed. A radial arrangement of tapered slotlines is placed between two flared coaxial lines. 64 elements are combined with low combining loss over the 5 to 20 GHz band.
Keywords :
coaxial waveguides; power combiners; rectangular waveguides; slot line components; 5 to 20 GHz; X-band; active array; coaxial combiner; combining efficiency; combining loss; cutoff frequency; device packing density; flared coaxial lines; rectangular waveguides; tapered slotlines; thermal properties; waveguide-based spatial combiners; Bandwidth; Coaxial components; Cutoff frequency; Gain; Insertion loss; Microstrip antenna arrays; Rectangular waveguides; Slotline; Solid state circuits; Thermal management;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.596528
