Broadband Analysis of Holographic Power Combining Circuits |
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Authors: | Michael Höft Jochen Weinzierl and Rolf Judaschke |
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Abstract: | Holography is a promising technique for power combining applications in the frequency range of short millimeter and submillimeter waves. In this paper, quasi-optical holographic power combining circuits are investigated. An equivalent network is utilized which rigorously models horn arrays and biperiodic dielectric structures in order to design computer-generated holograms. We apply the network model to a 5-element quasi-optical power combiner and demonstrate its capability. The hologram is designed for 150 GHz and has an efficiency of 92.5 % with a 90 % bandwidth of 5.3 %. With the aid of a broadband waveguide power divider and a vector field measurement system, the circuit is analyzed. |
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Keywords: | Holography quasi-optical power combining submillimeter-wave circuits horn antennas vector near-field measurement |
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