Nanusens has demonstrated a mems digitally-tuneable capacitor for 5G and 6G RF front-ends, that is compatible with CMOS IC processing and can be integrated with circuitry. The Q-factor is above 100 at ...

A tuned circuit formed by a capacitor and an inductor is a familiar enough circuit, and it’s understood that it will resonate at a particular frequency. As that frequency increases, so the size ...

The need for what’s called antenna tuning—either by adjusting the antenna itself or via a matching circuit between power-amplifier output and the antenna—is almost as old as wireless itself. Even in ...

What is impedance matching? Applications of impedance matching. Impedance matching and design considerations. Impedance (Z) matching is an essential part of most RF circuit design. Regardless of ...

Poor Z matching results in weak signal reception. This problem is easily solved by inserting an antenna tuner between the transmitter and antenna. This is an LC circuit usually consisting of a fixed ...

TRF and Reflex A step up from the crystal radio is the TRF or tuned radio frequency architecture. With TRF, you basically have a crystal radio with some amplifiers ahead of the detector that ...

Figure 6 Create LM386 shortwave regenerative receivers using high gain and RF envelope detector modes. Building a tank circuit from 8 turns on a 3-inch ferrite rod and both gangs of a standard MW ...

The role of capacitors in electronics is to keep things steady — converting the fluctuation of an alternating current into the smooth flow of a direct current; absorbing excessive electric current or ...