CST – Computer Simulation Technology

Use of Nano-Grids in a Waveguide
Jan Zehentner, Jan Machac, Pavel Zabloudil
Proceedings of the 36th European Microwave Conference
Sept. 2006
Power dividers, power combiners, power control, waveguide attenuators, waveguide T-junctions
A new concept of passive waveguide circuits is presented. It is based on a combination of the standard rectangular waveguide with a metal uniform linear polarization grid of nano thickness. The grid is deposited on a polymer foil and inserted into the waveguide, allowing it to rotate between two opposite flanges. The concept is demonstrated on a T-junction with an adjustable ratio of the output powers, and on a variable reflection attenuator. The two circuits were designed, manufactured and tested. The measured characteristics compare well with the computer simulations, and have confirmed the expected behavior of the two circuits.

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