TY - JOUR
T1 - Low conversion-loss fourth subharmonic mixers incorporating CMRC for millimeter-wave applications
AU - Xue, Quan
AU - Shum, Kam Man
AU - Chan, Chi Hou
PY - 2003/5
Y1 - 2003/5
N2 - Low conversion-loss millimeter-wave fourth sub-harmonic (SH) mixer designs are proposed in this paper. A millimeter-wave (35 GHz) fourth SH mixers with four open/shorted stubs is designed and measured. The conversion loss is less than 15 dB within a 2.4-GHz bandwidth. The minimum loss is 11.5 dB at the center frequency. By replacing two of the shunt stubs with a dual-frequency in-line stub consisting of newly developed compact microstrip resonating cells (CMRCs), the performance of the SH mixer is improved significantly. At 35 GHz, the conversion loss of this new fourth SH mixer is as low as 6.1 dB with a 3-dB bandwidth of 6 GHz. The conversion loss in the whole K a-band (26.5-40 GHz) is less than 16 dB. The proposed fourth SH mixer incorporating with CMRCs provides a low-cost high-performance solution for RF subsystem design.
AB - Low conversion-loss millimeter-wave fourth sub-harmonic (SH) mixer designs are proposed in this paper. A millimeter-wave (35 GHz) fourth SH mixers with four open/shorted stubs is designed and measured. The conversion loss is less than 15 dB within a 2.4-GHz bandwidth. The minimum loss is 11.5 dB at the center frequency. By replacing two of the shunt stubs with a dual-frequency in-line stub consisting of newly developed compact microstrip resonating cells (CMRCs), the performance of the SH mixer is improved significantly. At 35 GHz, the conversion loss of this new fourth SH mixer is as low as 6.1 dB with a 3-dB bandwidth of 6 GHz. The conversion loss in the whole K a-band (26.5-40 GHz) is less than 16 dB. The proposed fourth SH mixer incorporating with CMRCs provides a low-cost high-performance solution for RF subsystem design.
KW - Compact microstrip resonating cell (CMRC)
KW - Microstrip line mixer
KW - Quasi-lumped component
KW - Subharmonic (SH) mixer
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U2 - 10.1109/TMTT.2003.810153
DO - 10.1109/TMTT.2003.810153
M3 - RGC 21 - Publication in refereed journal
SN - 0018-9480
VL - 51
SP - 1449
EP - 1454
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 5
ER -