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Category: RF

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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A Finite Story About Differentials And Integrals

May 2, 2023May 17, 2023 GadiEngineering, FDTD, RF, Simulation, UncategorizedLeave a Comment on A Finite Story About Differentials And Integrals

There are quite a few simulation tools available today. Various methodologies, various levels of GUI usability, but there is one thing in common. They are all really expensive. Ranting aside, it is useful to know how the different simulation techniques…

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Building Bridges Pt. 3 – Time And Time Again

March 6, 2023March 8, 2023 GadiCAD, Engineering, FDTD, KiCAD, Octave, OpenEMS, Programming, RF, SimulationLeave a Comment on Building Bridges Pt. 3 – Time And Time Again

Yet another exciting episodes of issues simulating stuff in the time domain.

Building Bridges Pt. 2 – The Curse Of The Open Source

February 28, 2023April 16, 2023 GadiCAD, CEM, FDTD, KiCAD, Matlab, Octave, OpenEMS, Programming, RF, SimulationLeave a Comment on Building Bridges Pt. 2 – The Curse Of The Open Source

The adventure continues! Now with S-Parameters and pretty 3D drawings

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

Some Stuff About RADARs, pt. 1 – Range, Power And Doppler

February 5, 2023February 15, 2023 GadiOctave, Radar, RF, UncategorizedLeave a Comment on Some Stuff About RADARs, pt. 1 – Range, Power And Doppler

Just the tip of the iceberg on how RADARs work

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.

Mode Solvers – The Return Of The Ports

July 6, 2019October 14, 2019 GadiCEM, Engineering, FEM, Matlab, Octave, Programming, RFLeave a Comment on Mode Solvers – The Return Of The Ports

In the previous post, I mentioned that there are two more major aspects to discuss in designing ports: Modes Solvers (Eigenmode Solvers, Actually). How to place and design the ports. I’ll start from the first for two reasons: One, is…

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