IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
Design of a millimeter-wave third-harmonic mixer using substrate integrated waveguide balun
Jian GuoJie XuYang ChenCheng Qian
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2017 Volume 14 Issue 21 Pages 20170980


A planar millimeter-wave third-harmonic mixer with low conversion loss is proposed. The mixing circuit consists of a substrate-integrated waveguide (SIW) balun, a pair of diodes, a diplexer and microstrip matching circuit. The mixer is ideal for use as down-converter and up-converter. For a fixed intermediate frequency (IF) of 2 GHz, the mixer has an up-conversion loss of 14.5–15.6 dB and a down-conversion loss of 14–15.6 dB over the radio frequency (RF) band of 38–47 GHz. For a fixed local oscillation (LO) frequency of 13 GHz, the mixer has a conversion loss of 10–15.8 dB over the IF frequency band of DC-6.4 GHz. The proposed mixer offers an effective and low-cost solution for millimeter-wave applications.

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© 2017 by The Institute of Electronics, Information and Communication Engineers
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