Radio Frequency (RF) & Wireless Design

Recently I have uploaded two different forms of RF switches (https://en.wikipedia.org/wiki/RF_switch ) 

They are :

• Solid State RF Switches
• Electromechanical RF Switches

Solid State (absorptive) switches operate based upon electronic semiconductor means using PIN diodes (https://en.wikipedia.org/wiki/PIN_diode) and have extremely fast speeds into the nanoseconds (ns), but suffer the problem of RF power absorption as part of the switching process.

If timing is of paramount concern rather than power loss, then an absorptive PIN diode based solution using semiconductors is the better choice.

Electro-Mechanical switches operate similar to electro-mechanical relays and may in fact contain either a traditional mechanical switch (https://en.wikipedia.org/wiki/Relay) or a reed switch (https://en.wikipedia.org/wiki/Reed_switch).

A mechanical relay has much lower losses but suffers from very slow switching times, typically in milliseconds (ms) which is about a million times slower. If power loss is more of a concern than timing, then a mechanical RF switch is the better choice.

Also check out my other RF relays as they are the simplest form of RF switches with low power losses, but do suffer from slower electro-mechanical delays.