Chicken Dots
microwaves101.com
microwaves101.com
Related and in the same manner is to make PCB antennas slightly longer than what you think you need, then tune by shortening (ie cut it with a knife) mm by mm and measure. When you get the desired freq response, this length is what you'd use in the next/final revision of the hw.
But that's probably only the most low-cost designs - I think most use a pi matching network: https://coil32.net/online-calculators/pi-matching-network-ca... since it gives more flexibility and can cope with more severe impedance mismatches.
(this is on sub-/2.4 GHz, don't know how it works for much lower or higher f)
https://blog.mozilla.org/security/2018/10/15/removing-old-ve...
https://security.googleblog.com/2018/10/modernizing-transpor...
https://webkit.org/blog/8462/deprecation-of-legacy-tls-1-0-a...
The other path is for certain users who have shut off various TLS options after encountering a “security” guide. Those users also often end up with TLS 1.3 disabled, because those security guides are rarely competent.
This site is a very good example of how not to do it: https://www.ssllabs.com/ssltest/analyze.html?d=www.microwave... You've got SSLv3, RC4 and even SSLv2.