Design and characterization of sideband-separating SIS mixer RF hybrids for the Band 3 receiver (84-116 GHz)
Design and characterization of sideband-separating SIS mixer RF hybrids for the Band 3 receiver (84-116 GHz)
复制标题
用于频段 3 接收器 (84-116 GHz) 的边带分离 SIS 混频器 RF 混合器的设计和表征
DOI:
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发表时间:
2005
期刊:
影响因子:
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通讯作者:
S. Pan
中科院分区:
文献类型:
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作者:
P. Dindo;S. Claude;D. Derdall;D. Henke;D. Erickson;G. Rodrigues;A. Lichtenberger;S. Pan
The Band3 ALMA front end receiver incorporates sideband-separating (2SB) superconductor-insulator-superconductor (SIS) RF hybrid assemblies to achieve low noise temperatures. The 2SB RF hybrid assembly consists of a feedhorn to direct the RF signals, RF and IF quadrature hybrids for separating the USB and LSB signals, and two SIS mixers to down convert the 100 GHz RF signals to 4-8 GHz IF signals. These assemblies require careful matching of the phase and amplitude of the signals in the USB and LSB pathways to minimize receiver noise. The individual components undergo careful characterization and tests to build suitable 2SB RF hybrids assemblies.