Microstrip band-pass filters without source/load inverters

作者：Xiao, Fei^*

来源：International Journal of Circuit Theory and Applications, 2018, 46(3): 415-426.

DOI：10.1002/cta.2427

• complex general Chebyshev filter
• direct synthesis technique (DST)
• distributed- to lumped-element equivalence (DLEE)
• full-resonance filter
• resonance

In radio frequency/microwave or even higher frequency range, various transmission-line filters have been proposed for frequency selection. Specifically, there is a kind of transmission-line filters not having source/load inverters. To design them is somewhat difficult, if their physical mechanism is not fully understood. In this paper, the concept of the distributed- to lumped-element equivalence is applied in the synthesis of several microstrip band-pass filters without source/load inverters. As demonstrated, it can help to reveal the physical mechanism of the filters such as how the resonances are created and coupled. In addition, the distributed- to lumped-element equivalence relations between filter specifications and structural parameters are presented and good initial dimensions are calculated, which will facilitate filter design. Several examples are presented for demonstration.

• 出版日期2018-3
• 单位电子科技大学