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http://dx.doi.org/10.5515/KJKIEES.2008.19.4.397

60 GHz Band Non-Radiative Dielectric Waveguide Mixer having the Waveguide Directional Coupler  

Yoo, Young-Geun (School of Electrical Engineering, University of Ulsan)
Choi, Jae-Ha (School of Electrical Engineering, University of Ulsan)
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Abstract
In this paper, the mixer was implemented in the non-radiative dielectric waveguide that is the main component of 60 GHz band radio telecommunications equipment which a demand increases for the purpose of point-to-point communication network. As to the manufacture of the non-radiative dielectric waveguide mixer, it was the implementation of the dielectric line combiner to be most difficult. The thing which that gives shape to the curvature which is the dielectric line determined and the to place in the exact interval thing are easy. For this reason, it was very difficult to make in order to have the regular performance in the case of the mixer having the dielectric line combiner. In this paper, since the dielectric line combiner was replaced with the waveguide directional coupler and the manufacture was possible through a processing it had the characteristic that a combiner is fixed. In result, the productivity of a mixer was innovatively improved. The design frequency of the mixer implemented through this paper RF and LO are $51{\sim}64\;GHz$. IF Is $DC{\sim}\;GHz2$. The down conversion loss toward the RF input of $60{\sim}62\;GHz$ was measured by $10{\pm}1\;dB$ in the condition that LO is 10 dBm, 60 GHz.
Keywords
60 GHz Mixer; NRD Waveguide; Waveguide Directional Coupler; High Dielectric Sheet;
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