caa a22 4500 445305800 CHVBK 20180317142612.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10762-011-9777-6 doi (NATIONALLICENCE)springer-10.1007/s10762-011-9777-6 Design of a Compact Ka-band Balanced Mixer Based on a Novel Wide-band Equivalent Circuit of the Schottky Diode [Elektronische Daten] [Jinchao Mou, Weihua Yu, Yong Yuan, Xin Lv] A compact Ka-band balanced mixer based on a novel Schottky diode model is presented in this paper. According to its physical structure, a novel 3D electromagnetic model of the Schottky diode is proposed. Meanwhile, a wide-band equivalent circuit is built, which takes all high frequency effects existing in the diode into account. All the parasitic reactances are extracted from the electromagnetic model-based S-parameters up to 110GHz. Based on the proposed equivalent circuit, a Ka-band balanced mixer is designed and optimized, where bandpass filters with open stubs and a lowpass filter based on defected ground structure cells are used. The measured results show that the conversion loss is below 9dB from 30GHz to 40GHz with the minimum of 6.7dB at 35GHz. The normalized size of the mixer is only 3.3λ g  × 3.3λ g , whereλ g is the wavelength at 35GHz. Springer Science+Business Media, LLC, 2011 Schottky diode nationallicence Balanced mixer nationallicence Wide-band equivalent circuit nationallicence Defected ground structure nationallicence Mou Jinchao Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut Yu Weihua Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut Yuan Yong Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut Lv Xin Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/4(2011-04-01), 466-481 1866-6892 32:4<466 2011 32 10762 https://doi.org/10.1007/s10762-011-9777-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10762-011-9777-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mou Jinchao Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Yu Weihua Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Yuan Yong Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut NATIONALLICENCE 700 1- Lv Xin Laboratory of Microwave Communication and Electronic Systems, Beijing Institute of Technology, 100081, Beijing, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Infrared, Millimeter, and Terahertz Waves Springer US; http://www.springer-ny.com 32/4(2011-04-01), 466-481 1866-6892 32:4<466 2011 32 10762 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer