Tag: RF Design
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 […]
What parameters impact the EVM of transmitter chain ?
The error vector magnitude or EVM is a measure used to quantify the performance of a digital radio transmitter or receiver. A signal sent by an ideal transmitter or received by a receiver would have all constellation […]
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 […]
LTE Reference Sensitivity Calculation, How it depends on SNR, why throughput decrease at the Cell edge?
The LTE reference sensitivity power level is the minimum mean power received at the antenna connector at which a throughput shall be ≥ 95% of the maximum throughput for a […]
What is Active Antenna System (AAS) and its 3D Aspect, Why AAS for 5G ?
An active antenna is an antenna that contains active electronic components like antenna-integrated radio designs place the RF module next to the passive antenna to reduce cable losses. Active Antenna does not […]