I was wondering why a meter I bought that was capped at 8ghz wouldn't read out for a frequency around 100ghz. I know barely anything about meters.
What type of equipment would be able to detect that high of a frequency? I'm wondering if anyone knows a public or private meter that I'd be able to use for scanning an object emitting a frequency in that range.
At 100 GHz three things become serious problems that have to be addressed:
1. Bends in wire cause and inductance which acts like a resistance to an RF frequency and that increases with the frequency.
2. Capacitance to nearby conductors will cause those to act as more of a filter and absorb signal.
3. Diodes and transistors can only "switch" up to a certain frequency.
By the way, ordinary red light is about 430 THz (terahertz) and blue light about 770 THz, or 430000 GHz and 770000 GHz, respectively. And it is the "same sort of thing" as radio, that is, electromagnetic waves/photons. Accordingly, as the frequency gets very high, the electromagnet waves start to behave more like optical (light). (But sound of course is entirely something different and not electromagnetic waves/photons though many people seem to confuse that.)