Low-loss sapphire waveguides for 75-110 GHz frequency range

Dimitri Lioubtchenko, Sergey Dudorov, Juha Mallat, Jussi Tuovinen, Antti Räisänen

Research output: Contribution to journalArticleScientificpeer-review

34 Citations (Scopus)


Low-loss dielectric waveguides are promising for use instead of metal ones, but problems in transitions have to be overcome. A simple and effective structure made of a monocrystalline sapphire waveguide has been designed. Experimental results at 75-110 GHz indicate good matching with metal waveguides (VSWR /spl les/1.13) and low insertion loss (0.05-0.35 dB for 47 mm dielectric section).
Original languageEnglish
Pages (from-to)252-254
JournalIEEE Microwave and Wireless Components Letters
Issue number6
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed


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