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This paper proposes an efficient transconductor structure nearly free from the serious drawback of common- mode signal amplification at its output found in the conventional Nauta-OTA widely used for the implementation of VHF filter. A newly developed method mathematically clarifies the transfer characteristic of the proposed OTA and reveals the essential features of OTA/gyrator. In order to verify...
Basic problems of the bandpass filters (BPF) synthesis at the 100-400 MHz frequency band are dealt with. The multistep synthesis procedure for the filters on discrete elements is proposed. Two versions of BPF's based on ATC's discretes are described. Results of the experimental investigation are also presented.
The emergence of new wireless communication systems is always increasing the need for smaller, lighter and cheaper components while technical issues are harder to address as higher frequencies are used. We present the design of a fully integrated microwave bandpass filter, using only lumped components and HEMTs, to fulfill the input requirements of a LMDS client. The channelized filter approach has...
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