What is the difference between dBd & dBi?
Gain can be expressed in many different ways. The two most common are dBd and dBi. Gain expressed as dBd, is a measure referenced to a half wave dipole. The dBi measure is referenced to a theoretical dimensionless point source, with a completely spherical radiation pattern. Since it has no directivity, any real antenna without excessive loss will provide some amount of gain when compared to the isotropic.
Gain can be expressed in many different ways. The two most common are dBd and dBi. Gain expressed, as dBd is a measure referenced to a half wave dipole. The dBi measure is referenced to a theoretical, dimensionless point source with a completely spherical radiation pattern. Since it has no directivity, any real antenna without excessive loss will provide some amount of gain when compared to the isotropic. E-MOBILE antennas are all rated in dBd measurements.
Related Questions
- I need to install DBI and DBD for my perl installation so that I can access a mysql database. What is the easiest way to do that?
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