Question:
The standard reference antenna for the directive gain is the
The standard reference antenna for the directive gain is the
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Gain is always measured relative to isotropic radiator.
Updated On: Jul 2, 2026
- half wave dipole
- isotropic antenna
- infinitesimal dipole
- elementary doublet
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The Correct Option is B
Solution and Explanation
Concept:
Directive gain compares antenna radiation with a reference antenna.
Step 1: Definition of gain Gain is ratio of power radiated in a direction to reference.
Step 2: Standard reference Isotropic antenna radiates equally in all directions.
Step 3: Importance Provides uniform baseline for comparison.
Step 4: Practical antennas Dipole antennas are compared against isotropic source.
Step 5: Conclusion \[ \boxed{\text{Isotropic antenna}} \]
Final Answer: \[ \boxed{(B)} \]
Step 1: Definition of gain Gain is ratio of power radiated in a direction to reference.
Step 2: Standard reference Isotropic antenna radiates equally in all directions.
Step 3: Importance Provides uniform baseline for comparison.
Step 4: Practical antennas Dipole antennas are compared against isotropic source.
Step 5: Conclusion \[ \boxed{\text{Isotropic antenna}} \]
Final Answer: \[ \boxed{(B)} \]
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