Microwave Active Network Synthesis
Final rept. 13 Oct 69-27 Dec 71,
STANFORD RESEARCH INST MENLO PARK CA
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The report describes the application of meander lines to impedance transformers, and discusses two types of negative-impedance circuits and two slot-line topics. It is demonstrated that meander lines constitute a class of impedance transformers of which stepped-impedance transformers are a special case. Two types of negative-impedance-converter NIC circuits were designed and constructed 1 a high-power NUNIC, and 2 a FET-NIC filter. A high- power NUNIC circuit intended for operation at 200 to 500 MHz was built and produced negative resistance from below 80 MHz to above 680 MHz. A lossless one-pole filter incorporating the NUNIC was built for operation at 230 MHz and exhibited a 3-dB filter bandwidth of 2.7 MHz.
- Electrical and Electronic Equipment