Abstract
This paper describes a lightweight high-power TE01 mode duplexer in which weight reduction is achieved by using hexagonal ferrites. This duplexer operated at 35 GHz and has been tested at 150 KW peak power. Transmitted power loss is typically less than 0.5 dB. This device is basically a ``zero dB'' coupler using circular waveguide for the primary line and ferrite loaded rectangular waveguide for the secondary line. Hexagonal ferrites in the secondary waveguide produce the desired nonreciprocal phase shift. The ferrite is a (NiCo)2W compound with Hanis=6500 Oe. The method of selecting material and configuration is discussed, along with the effects of ferrite properties, configuration and location on performance and magnetic-field requirements.
Published Version
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