Selected Links

This page contains all of the links that we have referred to on our website.

   A one page article on calculating effective dielectric constant by Dr Eric Bogatin can be found on his website, but it is only possible to view the article by registering and logging on. Uses a TDR and imperial measurements.
http://www.bethesignal.net/bogatin/feature-articles-c-23.html

   A full page listing links to software and calculators including transmission line calculators.
http://www.circuitsage.com/tline.html

   IPC give many standards and formulas on their website.
http://www.ipc.org/ContentPage.aspx?pageid=PCB-Tools-and-Calculators

   IRFANVIEW software for printing.
http://www.irfanview.com/main_download_engl.htm

   Rick Hartley gives lots of useful formulas, and we have used two of them for our Microstrip calculators.
http://www.jlab.org/accel/eecad/pdf/050rfdesign.pdf

   Four pages of  formulas and data for RF/Microwave engineers.
http://www.kathrein-scala.com/tech_bulletins/EngRef.pdf

   Detailed article on hybrid transformers used as 'directional couplers'.
http://www.members.tripod.com/michaelgellis/direct.html

Data sheet for the BFS17 transistor can be found on this excellent source of data sheets.
http://www.datasheetarchive.com/

   The engineers at Polar have done extensive measurements and calculations on PCB tracks. They have studied many types of transmission line including ones where the tracks are on layers embedded within the PCB, such as Coplanar Coupled Centered Tracks, Stripline Centered Track and Embedded Microstrip. Reliable data but you may have to pay for using the calculators.
http://www.polarinstruments.com/support/cits/IPC1999.pdf

   There is a large collection of links from this RF Cafe page to a wide variety of calculators.
http://rfcafe.com/references/spreadsheets/calculator-list.htm

   RS Components are probably the best known supplier of electronic components and they sell useful RF ferrites.
http://rswww.com/

   The Data sheets of the Sirenza SGA-7489 amplifier can  be found on this page.
https://estore.rfmd.com/RFMD_Onlinestore/Products/RFMD+Parts/PID-P_SGA-7489(Z).aspx

Soldering Tips that almost anybody can gain from. Suitable for the professional and the enthusiastic amateur alike.
http://www.solder.net/technical/tips.asp