Create a Band Reject Filter using Coax - OPEN STUB VERSION (049a) скачать в хорошем качестве

Create a Band Reject Filter using Coax - OPEN STUB VERSION (049a)

Here's a fun one for you! Let's build a Band Reject Filter using just coax! And we can get some pretty amazing rejection with it! Admittedly, they are not not narrow band filters by any stretch of the imagination. The only have a Q around 110 according to my bench experiments here in the shop. There are two ways to do this. In this video I will show you the easiest way to do it: with the OPEN Stub. In the next video I will show you how to do it with a SHORTED Stub. Not as easy of a task. SPEED OF LIGHT VALUES 11802.85E6 inches/sec 29979.24E6 cm/sec Here are the promised links for you: =============================================== Step-By-Step Open Stub Cheat Sheet https://drive.google.com/file/d/182zc... Smith Chart - Downloadable FREE Complete Smith Chart https://www.scribd.com/doc/57547182/S... Time Markers for Your Convenience ---------------------------- 00:05 Initial Comments 02:22 How does this thing work? 06:19 How do we design one? 06:25 Know your materials! 07:06 What is your design frequency? 08:05 DEMO: Getting rid of Channel 11 08:09 The design parameters 09:37 Calculating the lengths 10:06 Preparing for creating the assembly 11:12 The final cut lengths 11:35 How I constructed it 12:55 Performance and Tuning 14:30 The Better way ... with adjustment! 14:42 How do we do this? 16:27 Things you need to know 16:49 Two ways to approach this design 18:18 WAY #1 - Step-By-Step 21:10 WAY #2 Step-By-Step 25:09 Performance and Tuning 27:18 Final Comments and Toodle-Oots -----------------------------