For each real number λ∈ [0, 1], λ-power distributional chaos has been in- troduced and studied via Furstenberg families recently. The chaoticity gets stronger and stronger as A varies from 1 to 0, where 1-power dis...For each real number λ∈ [0, 1], λ-power distributional chaos has been in- troduced and studied via Furstenberg families recently. The chaoticity gets stronger and stronger as A varies from 1 to 0, where 1-power distributional chaos is exactly the usual distributional chaos. As a generalization of distributional n-chaos,λ-power distributional n-chaos is defined similarly. Lots of classic results on distributional chaos can be improved to be the versions of λ-power distributional n-chaos accordingly. A practical method for distinguishing 0-power distributional n-chaos is given. A transitive system is constructed to be 0-power distributionally n-chaotic but without any distributionally （n ＋ 1）-scrambled tuples. For each λ∈ [0, 1], ）,-power distributional n-chaos can still appear in minimal systems with zero topological entropy.展开更多
本文介绍一种新型的宽带大功率合成器/分配器。在这种功率合成器中用同轴线Balun阻抗变换器和假负载代替传统的W ilk inson功率合成器中隔离电阻;使得其工作带宽是传统的功率合成器的三倍左右。本文回顾了展宽W ilk inson功率合成器工...本文介绍一种新型的宽带大功率合成器/分配器。在这种功率合成器中用同轴线Balun阻抗变换器和假负载代替传统的W ilk inson功率合成器中隔离电阻;使得其工作带宽是传统的功率合成器的三倍左右。本文回顾了展宽W ilk inson功率合成器工作带宽的方法,然后分析这种新型的的功率合成器的特性,最后给出仿真结果并与传统功率合成器、双节级联功率合成器的仿真结果作比较。展开更多
基金supported by the National Natural Science Foundation of China(Nos.11071084,11201157,11471125)the Natural Science Foundation of Guangdong Province(No.S2013040013857)
文摘For each real number λ∈ [0, 1], λ-power distributional chaos has been in- troduced and studied via Furstenberg families recently. The chaoticity gets stronger and stronger as A varies from 1 to 0, where 1-power distributional chaos is exactly the usual distributional chaos. As a generalization of distributional n-chaos,λ-power distributional n-chaos is defined similarly. Lots of classic results on distributional chaos can be improved to be the versions of λ-power distributional n-chaos accordingly. A practical method for distinguishing 0-power distributional n-chaos is given. A transitive system is constructed to be 0-power distributionally n-chaotic but without any distributionally （n ＋ 1）-scrambled tuples. For each λ∈ [0, 1], ）,-power distributional n-chaos can still appear in minimal systems with zero topological entropy.
文摘本文介绍一种新型的宽带大功率合成器/分配器。在这种功率合成器中用同轴线Balun阻抗变换器和假负载代替传统的W ilk inson功率合成器中隔离电阻;使得其工作带宽是传统的功率合成器的三倍左右。本文回顾了展宽W ilk inson功率合成器工作带宽的方法,然后分析这种新型的的功率合成器的特性,最后给出仿真结果并与传统功率合成器、双节级联功率合成器的仿真结果作比较。
