Relation between beam solid angle Ω, horizontal half-power beam width ∅A, vertical half-power beam width ∅E is __________(a) Ω≈∅A.∅E(b) Ω≈∅A+∅E(c) Ω≈∅A/∅E(d) Ω≈∅A-∅EThe question was posed to me in unit test.My question is taken from Antenna Characteristics topic in division Antenna Parameters of Antennas

Relation between beam solid angle Ω, horizontal half-power beam width

1.	Relation between beam solid angle Ω, horizontal half-power beam width ∅A, vertical half-power beam width ∅E is __________(a) Ω≈∅A.∅E(b) Ω≈∅A+∅E(c) Ω≈∅A/∅E(d) Ω≈∅A-∅EThe question was posed to me in unit test.My question is taken from Antenna Characteristics topic in division Antenna Parameters of Antennas
Answer» Right choice is (a) Ω≈∅A.∅E The EXPLANATION is: HALF-power beam width is the ANGULAR RANGE of antenna pattern in which half power is RADIATED. The relation between Ω, ∅A, ∅E is given by Ω≈∅ A.∅E.

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