Abstract:
In this paper, the synthesis of a passive complex filter has been described. First, a normalized real coefficient filter is transformed into a complex coefficient filter,...Show MoreMetadata
Abstract:
In this paper, the synthesis of a passive complex filter has been described. First, a normalized real coefficient filter is transformed into a complex coefficient filter, which includes imaginary-valued resistors by using a proposed frequency transformation. Second, a complex filter using passive elements is presented. The proposed circuit consists of terminating resistors, capacitors, and transformers with finite self-inductances and coupling coefficients equal to or less than unity. A third-order complex Chebyshev bandpass filter is designed using practical passive elements, and its frequency response is measured. It is shown that the experimental circuit exhibits bandpass characteristics (90-110 kHz) and an image rejection of 53 dB.
Published in: IEEE Transactions on Circuits and Systems I: Regular Papers ( Volume: 55, Issue: 7, August 2008)
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- IEEE Keywords
- Index Terms
- Passive Filter ,
- Impedance ,
- Frequency Response ,
- Coupling Coefficient ,
- Imaginary Axis ,
- Elements Of Practice ,
- Frequency Transformer ,
- Third-order Filter ,
- Experimental Circuit ,
- Low-pass ,
- Current Flow ,
- Capacitive Coupling ,
- Component Of Practice ,
- Conventional Circuit ,
- Real Circuit ,
- Ferrite Core ,
- High-order Filter
- Author Keywords
- Author Free Keywords
- passive ,
- complex ,
- filter ,
- transformer ,
- BPF
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Passive Filter ,
- Impedance ,
- Frequency Response ,
- Coupling Coefficient ,
- Imaginary Axis ,
- Elements Of Practice ,
- Frequency Transformer ,
- Third-order Filter ,
- Experimental Circuit ,
- Low-pass ,
- Current Flow ,
- Capacitive Coupling ,
- Component Of Practice ,
- Conventional Circuit ,
- Real Circuit ,
- Ferrite Core ,
- High-order Filter
- Author Keywords
- Author Free Keywords
- passive ,
- complex ,
- filter ,
- transformer ,
- BPF