Method for measuring noise parameters of microwave two-port
نویسندگان
چکیده
منابع مشابه
Method for measuring noise parameters of microwave two-port - Electronics Letters
Introduction; The measurement of the four noise parameters ("s) NPs of a two-port in the microwave frequency range is usually performed by measuring the two-port device noise figure F for a minimum of four source reflection-coefficients r,, produced with a tuner connected at the two-port input (reflection-type tuner) [I ~ 61. The equation relating F and rs, ( i = 1, ..., N) is expressed in line...
متن کاملTwo-port microwave calibration at millikelvin temperatures.
In this work we introduce a system for 2-port microwave calibration at millikelvin temperatures operating at the coldest stage of a dilution refrigerator by use of an adapted thru-reflect-line algorithm. We show that this can be an effective tool for characterizing common 50 Ω microwave components with better than 0.1 dB accuracy at temperatures that are relevant to many current experiments in ...
متن کاملA five-port deembedding method for floating two-port networks
Radio frequency (RF) high-power bipolar transistors are often constructed with the collector accessible at the bottom of the device. Characterization is carried out on substrate mounted devices. The classical methods developed for the “on wafer” capacitance–voltage (CV) and alternating current (ac) measurement of grounded devices are then no longer applicable. A (general) deembedding algorithm ...
متن کاملchemical recycling of polycarbonate waste using conventional heating and microwave assisted method
پلی کربنات یکی از پلاستیکهای مهمی است که به صورت گسترده در تولید لوحهای فشرده، قطعات رایانه، مواد ساختمانی و غیره مورد استفاده قرار می گیرد. این پلیمر بصورت عمده از تراکم مونومر بیس فنولa (bpa) و کربنیل کلرید یا دی متیل کربنات ها بدست می آید. در سالهای اخیر بازیافت شیمیایی پلی کربنات بیشتر مورد توجه بوده است. بازیافت شیمیایی پلی کربنات برای بدست آوردن مواد اولیه آن با روشهای متفاوتی مانند تجزی...
Measuring cosmological parameters with cosmic microwave background experiments.
The cosmic microwave background anisotropy is sensitive to the slope and amplitude of primordial energy density and gravitational wave fluctuations, the baryon density, the Hubble constant, the cosmological constant, the ionization history, etc. In this Letter, we examine the degree to which these factors can be separately resolved from combined smalland large-angular scale anisotropy observati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Electronics Letters
سال: 1998
ISSN: 0013-5194
DOI: 10.1049/el:19980942