What is directivity in a coupler ?

Directional couplers are four-port circuits where a defined amount of the electromagnetic power fed at the input port in a transmission line is coupled to a port (known as coupled […]

How to get better ACLR in TX chain ?

If you are trying to debug the bad ACLR in TX Chain or you are designing a TX for your system, then you must take care following points with regards […]

How to choose an Antenna for your application ?

Choosing an antenna can be a difficult task, there are several parameters that need to be taken into consideration. Although It is important to examine several physical, electrical, and economical […]

What is VBW, how it is different from RBW ?

VBW stands for Video Bandwidth; helps improve resolution of very weak signals in the presence of the noise signal. It is post detection filter bandwidth which just smooths out signal of interest. […]

What are E-UTRA Test Models (E-TM) in LTE ?

The E-UTRA test models (E-TM) are set of signals defined by 3GPP for the radio frequecy standard testing of LTE device (it may be eNodeB or UE) transmitter chain. The […]