Premium
Design of an X‐band tray‐type spatial power combiner using uniplanar quasi‐Yagi antennas
Author(s) -
Tsai FengChi E.,
Bialkowski Marek E.
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20287
Subject(s) - tray , amplifier , stack (abstract data type) , microwave , french horn , engineering , phase (matter) , power (physics) , electronic engineering , phase shift module , electrical engineering , ka band , acoustics , computer science , physics , telecommunications , mechanical engineering , cmos , quantum mechanics , programming language
The design of an X‐band tray‐type spatial power combiner, which employs uniplanar quasi‐Yagi antennas (QYAs) for receiving and transmitting signals by individual amplifiers, is presented. Passive and active varieties of a seven‐tray power‐combining structure that includes two hard horns for uniform signal launching and combining across the tray stack are developed and measured. In order to compensate for nonuniform phase across the stack, which is caused by the nonplanar wave front of the horn antennas, Schiffman phase shifters are implemented in individual trays. The experimental results show an improved performance of the investigated tray‐type power combiner when the proposed phase‐error compensation is implemented. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 307–311, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20287