Design of a ten-way conical transmission line power Combiner
Date
2007
Authors
De Villiers D.I.L.
Van Der Walt P.W.
Meyer P.
Journal Title
Journal ISSN
Volume Title
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Abstract
Axially symmetric power combiners, such as radial line and conical line combiners, are very effective in combining the output signals from a large number of power amplifiers over a wide band with low losses. The main problem with radial lines is the behavior of the characteristic impedance against radial distance, which makes design of radial combiners difficult and normally optimization based. In this paper, a step-by-step design procedure is presented for the design of a conical line combiner. The design strategy relies on the transverse electromagnetic properties of the conical line to eliminate the need for complex full-wave optimization in the design process. Circuit models are instead employed and optimized to achieve a wide matched bandwidth. A ten-way proto-type was developed at X-band, which displayed more than an octave matched bandwidth with low insertion loss. © 2007 IEEE.
Description
Keywords
Bandwidth, Electric connectors, Electric impedance, Electric lines, Electromagnetism, Optimization, Combiners, Conical combiners, Conical transmission lines, N-way splitters, Passive components, Radial combiners, Power amplifiers
Citation
IEEE Transactions on Microwave Theory and Techniques
55
2
55
2