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What is dBic? How is it measured? Reference : Low-Profile, Low-Cost, Broadband Millimeter-Wave Antenna Array for...

What is dBic? How is it measured?

Reference : Low-Profile, Low-Cost, Broadband Millimeter-Wave Antenna Array for High-Data-Rate WPAN Systems Byungje Lee and Yonghyun Yoon

Engineering   Electrical-Engineering   
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dBic stands for the circularly polarized isotropic antenna gain that is referenced by decibel. It actually defines the forward antenna gain which can be compared to a circularly polarized isotropic antenna. The gain measurement is dependent on the aperture are of the receiving antenna and the polarization of the field.
Typically, the gain of antenna is measured by the ratio of the power generated from a far-field antenna to the power generated by a lossless isotropic antenna. Now, in case of dBic measurement, in place of lossless isotropic antenna, we need to obtain the power generated by a circularly polarized isotropic antenna. This ratio would be the dBic.

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