منابع مشابه
A Low Noise Cascode Amplifier
A low noise amplifier has been designed using a 2SK117 N channel J-FET as the input device in a cascode [1] configuration. Noise measurements on this amplifier yield a low frequency noise current of 0.25 fA/Yfu and a voltage noise of less than 1.2 n V NHz in the 500 Hz to 50 kHz region. Bloyet et al. [2] suggest a figure of merit of the product of the noise voltage and current as being appropri...
متن کاملA 2.4GHz Cascode CMOS Low Noise Amplifier
A cascode CMOS low noise amplifier (LNA) is presented along with the used design methodology and measurement results. The LNA works at 2.4 GHz with 14.5 dB voltage gain and 2.8 dB simulated noise figure (NF). Powered from a 1.8 V supply, the core measured current consumption is 2.76 mA. An output buffer was designed to match a 50 Ω load and its current consumption is 5.5 mA. The technology used...
متن کاملAdjustable Gain Cascode Low Noise Amplifier
Tower mounted amplifiers (TMA) serve to lower the system noise figure (NF) in cellular base-stations. For performance reasons, the TMA is located as near to the receiving aerial as practical and has to be connected to the rest of the radio at the tower’s base by a long run of coaxial cable. The parameters critical to TMA performance are low NF for reasons of optimizing coverage area, high gain ...
متن کاملA Concurrent Dual-Band Low Noise Amplifier for GNSS Receivers
In this paper, a new design of concurrent dual-band Low Noise Amplifier (LNA) for multi-band single-channel Global Navigation Satellite System (GNSS) receivers is proposed. This new structure is able to operate concurrently at frequency of 1.2 and 1.57 GHz. Parallel and series resonance parts are employed in the input matching in order to achieve concurrent performance. With respect to used pse...
متن کاملParameter Estimation of a High Frequency Cascode Low Noise Amplifier Model
A Low Noise Amplifier (LNA) is an important building block in the RF receiver chain. Typically the LNA should provide acceptable gain and high linearity while maintaining low noise and power consumption. To optimize these conflicting goals the so-called Cascode topology is widely used in industry. Here the gain cell is comprised of two transistors, one in common-source and the other in common g...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1987
ISSN: 0160-1741
DOI: 10.6028/jres.092.039