Help - polar charts
dredlord
Member Posts: 172
Dear all,
I am trying to study for the CWNA (starting to suspect this is harder than originally anticipated), I am well versed in networking having multiple cisco certs under my belt, but WiFI I always avoided as if it was the plague for one reason or another. I am trying to decipher the polar charts and beam width section of the official study guide and must say I am failing to grasp the concept. Can anyone shed some words of wisdom on how to read the charts? or point in the direction of alternative study materials as my googling for other CWNA books has been a bit dry
I am trying to study for the CWNA (starting to suspect this is harder than originally anticipated), I am well versed in networking having multiple cisco certs under my belt, but WiFI I always avoided as if it was the plague for one reason or another. I am trying to decipher the polar charts and beam width section of the official study guide and must say I am failing to grasp the concept. Can anyone shed some words of wisdom on how to read the charts? or point in the direction of alternative study materials as my googling for other CWNA books has been a bit dry
Comments
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JDMurray
Admin Posts: 13,090 Admin
Polar diagrams are the RF radiation pattern from an antenna. The common 2D diagrams are the pattern as seen from above the antenna. There are 3D polar diagrams that show the pattern from different angles.
There are a bunch of amateur radio Web pages that describe polar diagrams, such as Dipole Radiation Patterns | Antenna Polar Diagram | Tutorial