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所属单位：电子信息工程学院
发表刊物：IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
关键字：Broadband dual band frequency-dependent complex loads (FDCLs) multiband impedance matching networks (MBIMNs) optimal matching networks triband
摘要：In this paper, broad multiband impedance matching networks (MBIMNs) are synthesized for frequency-dependent complex loads. The MBIMNs are derived from a multiband bandpass topology that is obtained by conducting multiple low-pass-bandpass transformations and by sharing one topology for all matching bands. The concept of a frequency-dependent voltage transformer is then used for generating a frequency-dependent load conductance, while the load susceptance is borrowed from the nearest susceptance unit of the topology. The resulted MBIMN contains several multimode resonators that are practically realized by parallel connections of series LCs and series connections of parallel LCs, and iterative methods are used for extracting the circuit parameters. Three dual-band examples and one triband example are designed and simulated, and two of them are fabricated and measured, with compared results sufficiently demonstrating the feasibility of the topologies and theories. Broad bandwidths referring to low reflection coefficients are observed. The topologies and methods can also be expected to realize more than three matching bands provided with enough convenience in circuit implementation. Multiband bandpass filtering is another important function of the matching networks.
ISSN号：0018-9480
是否译文：否
发表时间：2018-10-01
通讯作者：刘云