[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5515/JKIEES.2017.17.2.65

Design of A Compact Single-Balanced Mixer for UWB Applications

Mohyuddin, Wahab (School of Electronics Engineering, Kyungpook National University)
Kim, In Bok (LIGNex1 Co. Ltd.)
Choi, Hyun Chul (School of Electronics Engineering, Kyungpook National University)
Kim, Kang Wook (School of Electronics Engineering, Kyungpook National University)

Publication Information

Journal of electromagnetic engineering and science / v.17, no.2, 2017 , pp. 65-70 More about this Journal

Abstract

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.

Keywords

Planar Transitions; Ring Coupler; Schottky Diode; Single-Balanced Mixer; Ultra-Wideband;

Citations & Related Records

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