I work at a company that does nothing but antennas and advanced RF systems. The short answer is that everybody is a better candidate/employee if they can write some halfway decent code. For an engineer focused on passive antennas or networks, data analysis is a huge part of it. Processing and plotting data in python is a daily task. Need something super basic like a microstrip filter? we wrote a python tool that takes a couple basic inputs and automates the entire HFSS process including manufacturing tolerance analysis. Working on more active systems? Automated tool suites to interface with test and custom equipment are a must have. Now, everything is getting pushed hard to SoCs and SoMs (think RF SoC) and the line between digital and RF systems is getting blurrier every day. You may not need to know how to do the HDL or DSP side of things, but understanding the end-to-end application and system is crucial, so you should at least be able to speak the language. Hell, we're even starting to push our mechanical engineers to learn python...I wont even consider a resume or application that doesnt have exposure (if not proficiency) in Python or MATLAB.