03.21.13 -- Built-In Wireless Sensor Can Diagnose 'Stressed' Machines Remotely
Considerations In RF/Microwave Relay Performance By Karl Kitts, director of development engineering for high-performance relays, TE Connectivity
The hardware designer has unique performance requirements to consider when specifying RF/microwave relays and switches. Signal-level DC and low-frequency AC relays are typically characterized using different specifications than those used for RF/microwave. But the attributes can be compared. One reason for the difference is that the characteristics of microwave relays are frequency-dependent.
The SKY74073 SPR module combines all of the circuitry required to design a dual-band EGSM900 and DCS1800 radio into a small single package radio module. The SKY74073 can save handset designers significant space and design-cycle time while providing a roadmap for future multi-band and 3G applications.
RFMD's RFDA0047 is a dual channel digital controlled variable gain amplifier featuring high linearity over the entire gain control range with noise figure less than 6.5 dB in its maximum gain state. The gains of two 6-bit digital step attenuators are programmed with a serial mode control interface (SPI).