Some considerations for optimal efficiency and low noise in large power combiners

@article{citeulike:2776282, abstract = {This paper examines some relationships between important design parameters in large combiner systems and key performance objectives such as power, efficiency, noise, and graceful degradation. Results are derived for the combining efficiency of general combiner systems, and used to contrast spatial and corporate combiners and identify optimum combiner topology for a given device technology. The influence of array size on excess phase noise is quantified and shown to decrease with increase numbers of devices. Results are also presented for the degradation in combining efficiency due to statistical variations in amplifier characteristics, appropriate to large combiners, showing that phase errors are the dominant factor in power degradation}, author = {York, R. A. }, booktitle = {Microwave Theory and Techniques, IEEE Transactions on}, citeulike-article-id = {2776282}, doi = {10.1109/22.939929}, journal = {Microwave Theory and Techniques, IEEE Transactions on}, keywords = {microwave, noise, power}, number = {8}, pages = {1477--1482}, posted-at = {2008-05-09 17:42:55}, priority = {2}, title = {Some considerations for optimal efficiency and low noise in large power combiners}, url = {http://dx.doi.org/10.1109/22.939929}, volume = {49}, year = {2001} }

TY - JOUR ID - citeulike:2776282 TI - Some considerations for optimal efficiency and low noise in large power combiners T2 - Microwave Theory and Techniques, IEEE Transactions on JF - Microwave Theory and Techniques, IEEE Transactions on VL - 49 IS - 8 SP - 1477 EP - 1482 N2 - This paper examines some relationships between important design parameters in large combiner systems and key performance objectives such as power, efficiency, noise, and graceful degradation. Results are derived for the combining efficiency of general combiner systems, and used to contrast spatial and corporate combiners and identify optimum combiner topology for a given device technology. The influence of array size on excess phase noise is quantified and shown to decrease with increase numbers of devices. Results are also presented for the degradation in combining efficiency due to statistical variations in amplifier characteristics, appropriate to large combiners, showing that phase errors are the dominant factor in power degradation KW - microwave KW - noise KW - power AU - York, RA PY - 2001/// UR - http://dx.doi.org/10.1109/22.939929 ER -