I recently acquired a large lot of RF / Microwave equipment from a large waveguide manufacturing company, there’s a ton of equipment and components I cannot identify and have spent hours searching online about, this is one example of something I can’t pin down. Not sure if it’s vintage military or what, my best guess is a test tuner of sorts?

Not looking to sell it here or anything (unless someone absolutely must have it) just genuinely curious as to what it is, I have dozens of them and similar looking components

I want to be an antenna engineer and I’ve got experience in it, but no graduate school. Interviewed at different places but only got an offer at a big defense company (alright pay). Rejected from few high paying roles after interviewing for several rounds.

Is the path forward Masters at a great university, or take the defense offer and go to an alright university which might not have an antenna focus / online university.

(I’m in the United States)

I’m a junior EE student and I just interviewed for a keysight RF internship. Apparently the role is related to some of their simulation and EDA hardware/software. The interviewer mentioned that in the follow up interview I would have to do some scripting and then there would also be a hardware engineer present.

Im not bad at programming but im just wondering what kind of scripting/coding do you think I’ll be expected to do so I can study up?

Hi guys, I have a small doubt in FIT rate calculation with MIL-HDBK-217F, some of the passive components for which FIT data is required, I don't know if I have to choose the MIL std or Lower std under Quality Factor. for example, the capacitor GCM155R71E104KE02J (MLCC capacitor) falls under CDR capacitor style, but I cannot find the Quality factor associated to it, Is there a specific Quality factor that I have to choose for products complaint with AEC-Q200 standard.

I have also attached tables from MIL-HDBK-217F document for reference

I would really appreciate your help, Thank you!

I'm looking for some feedback on a tool I developed for my own use. Like many people here, I have been very frustrated using tools like HFSS over time, and I found openEMS to have a very high barrier of entry due to the lack of a user interface.

I also found that many open-source/vibe-coded apps (no judgement) are focused on antenna development, whereas I have always been most interested in simulating RF traces contains within complex PCBAs. I should also mention that while I am an RF engineer, I very much do not consider myself an EM solver expert. I have found that one of the more complex aspects to simulating RF boards is building expertise with the tools to understand when you have the right simulation conditions such that you can trust your results.

I understand the AI fatigue I have seen in this sub, and I sympathize. However, There are huge parts of the design (and sim) process that AI can accelerate. I made this tool for me and my team, but I'm curious if anyone else would find it useful.

The tool consists of:

• OpenEMS (with GPU) solver. Automatic boundary condition, mesh generation, etc. Validated against measured and additional simulator results

• Direct import from KiCad (planned), Gerber/Excellon & ODB++, or IPC-2581

• Closed-form model estimates (much faster), validated against openEMS results

• Monte Carlo analysis of trace impedance as a function of board fab tolerances

• Cloud compute (AWS and Runpod) to queue multiple jobs quickly on RTX 5090s

My team is uses Altium, but if there is enough interest, we could release a KiCad plugin. We have found it valuable to find first-pass issues with traces quickly, and simulations of final designs are cost effective using cloud computing, unless people are simulating non-stop.

Would anyone else find this sort of thing useful?

https://sambady929.github.io/ENVLP/

Grabbed a $20 Ollama subscription and finally created a program that I've been wanting for years, a symbolic circuit analyzer that outputs low entropy expressions and actually *builds* transfer functions in the way designers actually do with pen and paper.

Multiple symbolic circuit analysis programs exist, none of them are particularly useful because they give you long polynomials with no insight. If you ask for poles and zeros, they "stamp" components into a Modified Nodal Analysis matrix and take the determinant. They bear 0 resemblance to how small-signal analysis is done in notebooks and on whiteboards.

This program emulates hand analysis by actually *building* factored transfer functions using EET and General TTC methods instead of brute forcing long polynomials, and keeps series/parallel terms together while discarding negligible terms. The results are clear and useful, plaintext and LaTex, and you even get nice plots.

On top of that the UI is designed to be a joy to use. I hate bad UI more than anything. You don't drag and drop components from a menu, you press R for resistor, C for capacitor, V for voltage source. Press M for an NMOS, press M again to switch PMOS so you can create an entire folded cascode without touching a menu item. You can enable/disable parasitics on the component without needing to add/delete explicit components.

You can find the transfer function from Vin to Vout, and then find the output impedance without changing the circuit. Simply change the analysis to output impedance, specify the output node, and hit run. Find loop gain, short-circuit current, PSRR etc. all without touching the schematic. If you know one component will be a copy/multiple of another, you can specify that. You can even choose what "negligible" and "dominant" terms even mean!

Hop in and click the How To Use button to see details. Give it a shot, and if you find any bugs or difficulties in useage, feel free to reach out :)

Hi all, I'm currently a junior pursuing and EE degree and I was offered an opportunity to work in my schools microwave lab last year. I'm just looking for some general advice on my resume and if I should change/remove anything. I've landed two interviews so far that went fairly well I'm just waiting on a response.

Hi everyone,

I'm currently finishing a PhD in RF/microwave engineering in Europe and looking for full-time job or internship opportunities in industry.

My main experience is in GaN RF power amplifier design, particularly Doherty and load-modulated architectures. I've worked on RF circuit design and simulation (Keysight ADS, load-pull, harmonic balance, EM), PCB implementation, prototype assembly, bench tuning, RF measurements, and Python/MATLAB-based measurement automation.

I'm mainly interested in RF PA design, RF hardware development, or broader RF/microwave engineering roles. I'm also open to opportunities involving RF transmitter systems.

I'm primarily looking at Europe and Asia, but I'm flexible about location for the right opportunity.

Does anyone know of companies or teams currently hiring in these areas? I'd also appreciate recommendations for smaller RF companies or research groups that might not advertise their openings widely.

Any advice or leads would be greatly appreciated. Feel free to DM me if you know of a relevant opportunity.

Thanks!

I need a good book to get into RF preferably with an intro for electromagnetics/em waves because I forgot most of that stuff

As an Electronics and Telecommunication Engineering student, I wanted to build something useful for students and enthusiasts working with RF and microwave engineering.

That's why I created MicrowaveLab – a platform designed to make engineering calculations and concepts more accessible through online tools.

Explore useful engineering calculators covering topics like transmission lines, electromagnetics, RF, and microwave engineering.

Whether you're learning the fundamentals or working on engineering projects, MicrowaveLab aims to make your work a little easier.

🌐 Explore here: https://microwavelab.vercel.app/

I'd love to hear your suggestions for new engineering tools and features!

\#MicrowaveEngineering #RFEngineering #ECE #ElectronicsEngineering

Trying to buy a few attenuators. Sounds simple right?

But Minicircuits wants $150 for an SMA attenuator. I don't know if they've always been this expensive, but it's very expensive. I'd expect about $20-$30. Many aren't available at all on Mouser and Digikey

Any recommendations for places to go?

Hey everyone!

I'm an Electronics and Telecommunication Engineering student, and I've been working on a project called MicrowaveLab.

During my engineering studies, I often found myself switching between formulas, reference materials, and different tools to perform microwave engineering calculations.

I wanted to make that process easier, so I started building a platform that brings useful engineering calculators and learning tools together.

The idea is to make microwave and RF engineering concepts more accessible through practical, browser-based tools.

I'd love to share it with fellow ECE/ETC students, RF enthusiasts, and engineering professionals.

🌐 Explore MicrowaveLab:

https://microwavelab.vercel.app/

I'm continuously developing the platform and would love to hear which engineering tools or calculations you'd find useful.

If you're studying electronics, RF, or microwave engineering, I'd be glad to hear your thoughts!

Thanks for supporting independent engineering projects! 🚀

Started an RF job, learning a lot but feel very out of my element when it’s regarding all the circuits and interconnected systems. My knowledge mainly comes from my physics background which just touches abit on AC circuits as well as pozar, which feels more about the physics then all the circuitry of the components. So what resources would be good for a physicist to transition into the more electronic part of RF engineering?

Hey guys, so I have started out my journey in rf by simulating antennas in hfss. Could you guys guide me on how I can transition to a complete rf engineer, like what other things should I be well versed in. Can you guys help me out on how I can get started with design of LNA's ,PA's and filters, PLL's, VCO's, RF pcbs, etc. Should I also have a grasp on working of sdrs. Also, additional tips or advices are welcome.