Mixer-Preamp Design Using MMICAD
نویسنده
چکیده
The microwave circuit simulator MMICAD can be used to analyze and optimize the small-signal conversion and noise performance of a mixer-preamplifier. The mixer is represented as a noisy five-frequency five-port network using imported conversion and noise correlation matrices, with MMICAD’s NCSCOR5 element which contains five correlated noise sources.
منابع مشابه
Mixer-Preamp to Receiver Interface Considerations for ALMA Band 6
The NRAO CDL is preparing to construct test receivers for use in production of the Band-6 mixer-preamps for ALMA. The discussion below applies primarily to the mixer-preamp to test receiver interface, but should also be useful as a guide to the mixer-preamp interface with the cartridges all the listed connections will be available on the mixer-preamp and can be used as desired by the cartridg...
متن کاملA Fixed-Tuned SIS Mixer with Ultra-Wide-Band IF and Quantum-Limited Sensitivity for ALMA Band 3 (84-116 GHz) Receivers
This paper describes an 84-116 GHz Nb/Al-oxide/Nb SIS mixer with multi-octave IF bandwidth and quantum-limited sensitivity. The mixer can be integrated with a three-stage 4-12 GHz HFET preamplifier or fitted with a coaxial connector for operation with an external isolator and IF amplifier. An 84-116 GHz receiver using the mixer with an integrated 4-12 GHz HFET preamplifier has a double sideband...
متن کاملWaveguide Quadrature Hybrids for ALMA Receivers
This memo describes the design of a set of waveguide quadrature hybrids suitable for use in balanced and sideband-separating mixers, balanced amplifiers, and power combiners and dividers. The hybrids are of the branchline type, which can be machined in a split block configuration on a CNC milling machine. The prototype designs are for the WR-10 band (75–110 GHz), but the dimensions are chosen t...
متن کاملUWB Mixer improvement with Regulated Voltage Source
This paper presents a design of an UWB downconversion integrated CMOS resistive ring mixer with Linear Voltage Regulator (LVR), to supply required biasing voltages for the mixer section. The designed mixer circuit has been optimized for using in heart rate extraction system with microwave Doppler radar at 2.4GHz frequency. This mixer needs 2 DC bias voltages equal to 0.5 and 1 volts for its bes...
متن کاملEvaluation of bias associated with high-multiplex, target-specific pre-amplification
We developed a novel PCR-based pre-amplification (PreAmp) technology that can increase the abundance of over 350 target genes one million-fold. To assess potential bias introduced by PreAmp we utilized ERCC RNA reference standards, a model system that quantifies measurement error in RNA analysis. We assessed three types of bias: amplification bias, dynamic range bias and fold-change bias. We sh...
متن کامل