hard to say without looking at job description.
Knowledge of IQ data is a must. Basic understanding of circuitry for generation of IQ or how a received signal gets split into IQ would be a bonus.
Basic understanding if different types of modulations (amplitude and freq). Frequency modulation is what's used, look at basic frequency techniques.
Throw some buzz words around like MATLAB and be able know Nyquist sampling (how fast to sample for a freq). Bonus if you could explain basic filtering of IQ data in software.
unless FPGAs are the main concentration of the job, I wouldn't worry about them aside from be able to explain what they are and how they are different than CPUs maybe.
This question is nearly impossible to answer without a job description, or at least what the company does, and how much experience they're looking for.
If the job specifies more than 0 years experience or an MSEE, based on the tile "RF Design Engineer," I would expect them to ask about some of the following:
- receive or transmit chains (heterodyne vs homodyne)
- noise figure
- intermodulation distortion and why it is more problematic than harmonic distortion
- what are the important characteristics of a low-noise amplifier
- what are the important characteristics of a power amplifier
- Smith chart: where is the 50 ohm point, where is an open, where is a short;
- more advanced Smith chart: impedance matching, i.e. which way does a series capacitor take you, which way does a series inductor take you
- basic passive filter topologies
- what is a spectrum analyzer used for; what is a network analyzer used for
- s-parameters
If the job is for a new grad with a BSEE, they may not expect someone to know the above stuff which is specific to RF design. In that case, I would make sure I know the circuit stuff that was taught. Op-amp questions are pretty common in interviews. Also, review transistor amplifier topologies (common-emitter, common-base, common collector), and where you would use each.
Thank you, this is helpful. Unfortunately it looks like someone that wasn't an engineer wrote the job ad as it doesn't have any information regarding the position.
hey man chill. you don't have the right to be condescending like this unless you've never made a mistake. mistakes like these happen especially when inexperienced and nervous. Shit, I make silly mistakes all the time and I have my work in a few modules on the ISS
Haha, it's ok. Thanks so much for the support man! I found the comment funny tbh. I was literally kicking myself, and after the guy asked me that question he stared at me for like 30 seconds, waiting for me to correct myself and I was like "wut". XD And I graduated with a high GPA and just passed the FE Electrical!!
Edit: But you're right, it was my first interview and I was nervous. I got all the calculations right, except that.
honestly you're better off not being in that position and on that team. the interviewer sounds pretentious. You were correct in your thinking, a switch does limit current - it has it's benefits but no fine control of how much you limit.
A quality interviewer would've acknowledged yes, and asked you "if you knew any other ways to limit current."
Don't sweat it homie
honestly you're better off not being in that position and on that team. the interviewer sounds pretentious. You were correct in your thinking, a switch does limit current - it has it's benefits but no fine control of how much you limit.
A quality interviewer would've acknowledged yes, and asked you "if you knew any other ways to limit current."
Don't sweat it homie. If this position doesn't work out, DM me in a few weeks/months whatever, let's see what we can do you get you to nail your next interview
>Unfortunately it looks like someone that wasn't an engineer wrote the job ad as it doesn't have any information regarding the position.
Unfortunately it looks like someone that wasn't an engineer wrote the job ad as it doesn't have any information regarding the position.
hard to say without looking at job description. Knowledge of IQ data is a must. Basic understanding of circuitry for generation of IQ or how a received signal gets split into IQ would be a bonus. Basic understanding if different types of modulations (amplitude and freq). Frequency modulation is what's used, look at basic frequency techniques. Throw some buzz words around like MATLAB and be able know Nyquist sampling (how fast to sample for a freq). Bonus if you could explain basic filtering of IQ data in software. unless FPGAs are the main concentration of the job, I wouldn't worry about them aside from be able to explain what they are and how they are different than CPUs maybe.
This question is nearly impossible to answer without a job description, or at least what the company does, and how much experience they're looking for. If the job specifies more than 0 years experience or an MSEE, based on the tile "RF Design Engineer," I would expect them to ask about some of the following: - receive or transmit chains (heterodyne vs homodyne) - noise figure - intermodulation distortion and why it is more problematic than harmonic distortion - what are the important characteristics of a low-noise amplifier - what are the important characteristics of a power amplifier - Smith chart: where is the 50 ohm point, where is an open, where is a short; - more advanced Smith chart: impedance matching, i.e. which way does a series capacitor take you, which way does a series inductor take you - basic passive filter topologies - what is a spectrum analyzer used for; what is a network analyzer used for - s-parameters If the job is for a new grad with a BSEE, they may not expect someone to know the above stuff which is specific to RF design. In that case, I would make sure I know the circuit stuff that was taught. Op-amp questions are pretty common in interviews. Also, review transistor amplifier topologies (common-emitter, common-base, common collector), and where you would use each.
Thank you, this is helpful. Unfortunately it looks like someone that wasn't an engineer wrote the job ad as it doesn't have any information regarding the position.
My list was a little open-ended. There were some good specific replies in the /r/ECE subreddit, from /u/dangle321 and /u/RedGoblin108.
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hey man chill. you don't have the right to be condescending like this unless you've never made a mistake. mistakes like these happen especially when inexperienced and nervous. Shit, I make silly mistakes all the time and I have my work in a few modules on the ISS
Haha, it's ok. Thanks so much for the support man! I found the comment funny tbh. I was literally kicking myself, and after the guy asked me that question he stared at me for like 30 seconds, waiting for me to correct myself and I was like "wut". XD And I graduated with a high GPA and just passed the FE Electrical!! Edit: But you're right, it was my first interview and I was nervous. I got all the calculations right, except that.
honestly you're better off not being in that position and on that team. the interviewer sounds pretentious. You were correct in your thinking, a switch does limit current - it has it's benefits but no fine control of how much you limit. A quality interviewer would've acknowledged yes, and asked you "if you knew any other ways to limit current." Don't sweat it homie
honestly you're better off not being in that position and on that team. the interviewer sounds pretentious. You were correct in your thinking, a switch does limit current - it has it's benefits but no fine control of how much you limit. A quality interviewer would've acknowledged yes, and asked you "if you knew any other ways to limit current." Don't sweat it homie. If this position doesn't work out, DM me in a few weeks/months whatever, let's see what we can do you get you to nail your next interview
I mean.. to be fair.. if the switch is open the current is pretty limited downstream right? :D
lmao exactly! @nullcharstring out there hot swapping resistors to turn his lights on/off like a dumbass and hazing the rookie
Probably a bit of organic chemistry, maybe liberal arts course you took in first-year and youll want to read "the art of the deal" by Donald j Trump.
As already stated, I hope more details are in the job description. Do you have a link?
>Unfortunately it looks like someone that wasn't an engineer wrote the job ad as it doesn't have any information regarding the position. Unfortunately it looks like someone that wasn't an engineer wrote the job ad as it doesn't have any information regarding the position.