Title :
Simple noise analysis applied to power combiners
Author :
Morris, A.S. ; Trew, R.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
The advent of ultra-low-noise amplification has shifted the emphasis of low-noise design towards passive circuitry. Expressions for the noise parameters for a passive two-port are derived in terms of the scattering matrix and applied to the problem of design of power combining circuits. Simple guidelines for low-noise combiner design are presented.<>
Keywords :
random noise; waveguide components; design guidelines; guidelines for low-noise combiner design; low-noise design; noise analysis; noise parameters; passive circuitry; passive two-port; power combiners; power combining circuits design; scattering matrix; ultra-low-noise amplification; Acoustic reflection; Application software; Circuit noise; Distributed parameter circuits; Noise figure; Power combiners; Power transmission lines; Propagation losses; Scattering parameters; Temperature;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99811
