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Millimeter-wave holographic power splitting/combining

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2 Author(s)
Shahabadi, M. ; Arbeitsbereich Hochfrequenztech., Tech. Univ. Hamburg-Harburg, Germany ; Schunemann, K.

It is shown that holography offers a novel solution to the problem of millimeter-wave power splitting and combining. With the help of an approximate model, we demonstrate that a hologram will work as a beam-splitting element, provided that it records the holographic image of the beams to be generated. To verify this observation, a beam splitter consisting of a hologram and an antenna array is analyzed by means of a rigorous network model. This analysis serves to find the optimum structure of the beam splitter. Measurements on a realized prototype of the beam splitter prove the possibility of achieving a high splitting efficiency, a high inter-element isolation, and a relatively large bandwidth. Flexibility in the orientation and the number of outputs is another outstanding feature of this holographic approach

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:45 ,  Issue: 12 )