Design of A Compact Single-Balanced Mixer for UWB Applications

The design and implementation aspects of a new single-balanced mixer for ultra-wideband (UWB) applications are presented in this study. The proposed mixer utilizes a miniaturized UWB ring coupler as a balun, consisting of a pair of in-phase and inverted-phase transitional structures. The well-balanc...

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Bibliographic Details
Published inJournal of Electromagnetic Engineering and Science Vol. 17; no. 2; pp. 65 - 70
Main Authors Mohyuddin, Wahab, Kim, In Bok, Choi, Hyun Chul, Kim, Kang Wook
Format Journal Article
LanguageKorean
Published 2017
Subjects
Ring Coupler
Planar Transitions
Ultra-Wideband
Schottky Diode
Single-Balanced Mixer
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Summary:The design and implementation aspects of a new single-balanced mixer for ultra-wideband (UWB) applications are presented in this study. The proposed mixer utilizes a miniaturized UWB ring coupler as a balun, consisting of a pair of in-phase and inverted-phase transitional structures. The well-balanced UWB performance of the ring coupler, aside from the optimized diode matching, results in improved conversion loss and inter-port isolations for a wide bandwidth. The size of the implemented single-balanced diode mixer is reduced to about 60% of the area of the conventional single-balanced ring diode mixer. The measured results of the proposed mixer exhibit an average conversion loss of 7.5 dB (minimum 6.7 dB) and a port-to-port isolation of greater than 18 dB over a UWB frequency range of 3.1-10.6 GHz. The measured results agree well with the simulated results.
Bibliography:KISTI1.1003/JNL.JAKO201717234702836
ISSN:2671-7255
2671-7263