Download this article in PDF format. Directional couplers are used in a wide variety of applications to sense RF power, and they may appear at multiple points in a signal chain. In this article, we ...

Automatic Gain Control (AGC) circuitry is an important building block in modern wireless communication systems. In a receiver (RX), it is desirable to maintain the same input level for the A/D ...

In this exclusive series, Chipworks, one of the world's leading IC reverse-engineering houses, provides detailed functional and circuit analysis of significant new integrated circuits. Coupling actual ...

The LMV221 RF power detector from National Semiconductor Corp., Santa Clara, Calif., targets mobile-phone power controls in current and emerging cellular standards, including GSM, CDMA, UMTS and ...

CMOS mixers are integral components in modern radio frequency (RF) circuit design, enabling frequency conversion in wireless systems while prioritising low power consumption. Recent progress in ...

Fujitsu Laboratories today announced that it has developed a CMOS power detector with built-in temperature compensation, featuring a compact design and low power consumption suitable for use in ...

If the Wireless LAN market is still growing, Wireless LAN solutions are already in a cost reduction phase. Conceiving WLAN solutions nowadays requires a high-level approach where the final chipset may ...

Complementary metal oxide (CMOS) detectors have revolutionized spark optical emission spectrometer (OES) analysis. This technology offers an alternative to the photomultiplier tube (PMT), a fully ...

One of the few non-CMOS circuits left in wireless devices like cell phones these days is the power amplifier (PA). Most wireless radios use gallium-arsenide (GaAs) bipolar PAs, which up to now have ...

The cost and performance of commercial spark optical emission spectrometer (OES) instruments depends on many things, including the type of detector technology employed in the instrument. Recently, ...