This is a copy of N2PK's website. Paul has decided to delete his website (See N2PK-VNA on message #5, Jan 2020) from ~Feb 2020.

Paul has made availalable a ZIP file of his entire web site, which has been uploaded as is, no changes made except for this preface. <vk3pe>

Contact Paul at

This is a Smith Chart of a 20 meter bandpass filter that I built as part of a homebrew transceiver. This filter has a passband that ranges from about 13.7 to 15.4 MHz. It is swept here from 13 to 16 Mhz in 50 kHz steps. The Smith Chart shows that the filter presents a reasonably good approximation to a 50 ohm load for the 20m transmitter output. It is also well matched at 15 MHz for WWV reception.

Bandpass Filter Smith Chart



Please feel free to contact me with any comments or questions at: see above

Paul Kiciak, N2PK

Last updated: 19 Oct. 2006
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