2019
DOI: 10.1109/access.2019.2925897
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mm-Wave Waveguide Traveling-Wave Power Combiner Design Using an Equivalent Circuit Model

Abstract: The waveguide traveling-wave power combiner (WTWPC) falls into the category of asymmetrical non-isolated power combiners, and, therefore, the active load modulation occurring within the combiner was investigated. Proper manipulation of active load modulation gave rise to a two-step design method for the combiner. The first step formulated the specifications of the combiner in terms of active load impedance at its input ports, which determined the objective scattering parameters of the combiner, as well as the … Show more

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Cited by 3 publications
(3 citation statements)
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References 37 publications
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“…the  r axis. We consider that the distance between two constant Q-circles is given by the distance between their intersections with  i axis (7), then the distance between two consecutives circles is given in Table I. Fig.…”
Section: A Constant Q Circle Arcs On the 2d Smith Chartequationsmentioning
confidence: 99%
See 1 more Smart Citation
“…the  r axis. We consider that the distance between two constant Q-circles is given by the distance between their intersections with  i axis (7), then the distance between two consecutives circles is given in Table I. Fig.…”
Section: A Constant Q Circle Arcs On the 2d Smith Chartequationsmentioning
confidence: 99%
“…The Smith chart [1][2], which, was invented by Philip Hagar Smith in 1939, has survived the passing of years, becoming an icon of microwave engineering [3]. It is still being used in the design and measurement stage of various radio frequency or microwave range devices [4][5][6][7], for plotting a variety of frequency dependent parameters. Constant quality factor (Q) representations on the Smith chart are a visual way to determine the quality factor of various passive microwave circuits, being mostly known in the microwave frequency range community [8][9][10][11][12][13][14][15][16][17].…”
Section: Introductionmentioning
confidence: 99%
“…More compact combiners have been proposed [6][7][8], based on parallel or series combination, but their operation is restricted by factors such as impedance variation with number of elements, narrow bandwidth and limited impedance transformation. Waveguidebased power combiners were presented in [9][10][11][12][13][14][15][16]. An important advantage of this type of structures, with respect to Wilkinson or transformer based combiners, is that the insertion losses do not increase with the number of feeds, thus resulting in efficient power combiners if a large number of PAs is needed to meet the required output power.…”
Section: Introductionmentioning
confidence: 99%