Passive Inter-modulation (PIM)
Passive Inter-modulation (PIM) is the generation of interfering signals caused by non-linearities that occurs in passive components such as antennas, cables,...
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1dB Compression Point (P1dB Point)
1dB Compression Point When operating in the linear region of a device (such as power amplifier, mixer etc.), gain through...
VSWR
Impedance mismatches in a radio-frequency (RF) electrical transmission line cause reflection of rf power and thus power loss. VSWR is...
Signal Generator
A signal generator is an electronic device that generates repeating or non-repeating electronic signals in either the analog or the digital domain. The most...
Spectrum Analyzer
A spectrum analyzer is a laboratory instrument used for analyzing the frequency spectrum of radio frequency, RF and audio signals....
Error Vector Magnitude (EVM)
The error vector magnitude (EVM) is a measure of modulation quality of a digital radio transmitter or receiver. A signal sent by an ideal...
Mobile Phone Architecture
When we say a mobile, it is not just a piece of plastic/metallic body, as it looks from outside, there...
Noise Figure
Noise figure (NF) Noise figure (NF) and noise factor (F) are measures of degradation of the signal-to-noise ratio (SNR), caused by components in a radio-frequency (RF) signal chain. It...
CPRI – A High Speed Link
CPRI – Common Personal Radio Interface Today’s wireless operators face competitive pressure to reduce the rising cost of base stations,...
ACLR / ACPR
Adjacent Channel Power Ratio ACLR stands for Adjacent Channel Leakage Ratio ACPR stands for Adjacent Channel Power Ratio and ACLR...