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Category: Electronics

How To Make A Cactus – Multi Band Antennas

June 5, 2023June 5, 2023 GadiAntenna, CAD, Electronics, Engineering, FEM, RF, SimulationLeave a Comment on How To Make A Cactus – Multi Band Antennas

In the previous post, I discussed the fact that an Antenna should be designed from its stem, namely, its feeding point. I wouldn’t go as far as to say it’s easier to design this way, but it’s definitely better. I…

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Grounded, Again

May 30, 2023May 30, 2023 GadiAntenna, CEM, Electronics, Engineering, RF, SimulationLeave a Comment on Grounded, Again

There are a lot of weird articles out there. Out of respect, I’m not going to reference anything now, but if you’ve been around a bit, you know what I’m talking about. Specifically, in the field of Antennas, some person…

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Building Bridges Pt. 1 – How Would You Solve This?

February 21, 2023February 21, 2023 GadiCAD, CEM, Computational Geometry, Electronics, Engineering, FDTD, KiCAD, RFLeave a Comment on Building Bridges Pt. 1 – How Would You Solve This?

Trouble with computational geometry. How would you solve it?

RADAR Pt. 2 – A Practical Explanation

February 13, 2023February 14, 2023 GadiElectronics, Engineering, Matlab, Octave, Radar, RFLeave a Comment on RADAR Pt. 2 – A Practical Explanation

A practical example of how pulses are transmitted and received. A bit about modulation, demodulation and avoiding everything that is mildly complicated

Short Excerpt About Open Subjects In De-Embedding

Short Excerpt About Open Subjects In De-Embedding

November 16, 2019February 8, 2023 GadiDe-embedding, Electronics, Engineering, RFLeave a Comment on Short Excerpt About Open Subjects In De-Embedding

Just a bit about the underlying assumptions of de-embedding schemes.

Ports – From 3D to 0D

June 1, 2019October 14, 2019 GadiCEM, Eigenmode, Electronics, Engineering, FEM, KiCAD, Octave, Programming, RFLeave a Comment on Ports – From 3D to 0D

Disclaimer: This issue is boring. Not only because it has nothing to do with Cyber, AI, machine learning, etc. (nor do most of the things I do and write about). It’s boring because it has to do with only one…

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DXF Import In Octave

March 9, 2019October 14, 2019 GadiCAD, Electronics, Engineering, FEM, KiCAD, Octave, ProgrammingLeave a Comment on DXF Import In Octave

Nothing fancy, but I programmed a tool to import DXFs into GNU octave. Should be simple enough to convert to MATLAB, if necessary. Mainly I did it in order to integrate some of the work I do in KiCAD to…

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QUCS-S: Return Of The OpenSouce!

January 25, 2019October 14, 2019 GadiCAD, Electronics, Engineering, QUCSLeave a Comment on QUCS-S: Return Of The OpenSouce!

Another Linux user open wound: For ages I have been stuck without proper circuit simulation in Linux. I don’t define myself a power-user (only as a super user, but only when I run sudo) as I run Ubuntu, but that…

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Obsessive, Compulsive, Yet Hardly a Disorder

May 25, 2018October 14, 2019 GadiAudio, Electronics, EngineeringLeave a Comment on Obsessive, Compulsive, Yet Hardly a Disorder

So this has happened to me more times than I can remember. Somebody tosses a piece of junk or another out on the street. I pick it up, hoping that this time it will work “out of the box”. Sometimes…

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The Perils of Port Extensions

April 23, 2018October 14, 2019 GadiCAD, Electronics, Engineering, KiCAD, QUCS, RFLeave a Comment on The Perils of Port Extensions

This post concerns a much more simplified version of the previous one. Last time we dealt with an arbitrary length line, with an unknown characteristic impedance. For that matter, a double length line de-embedding structure was suggested. In this post,…

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