Effective Aperture Online Exam Quiz
Effective Aperture GK Quiz. Question and Answers related to Effective Aperture. MCQ (Multiple Choice Questions with answers about Effective Aperture
Free space loss factor is given by ___
Options
A : \frac{\lambda}{4\pi R}
B : (\frac{\lambda}{4\pi R})^2
C : \frac{4\pi R}{\lambda}
D : (\frac{4\pi R}{\lambda})^2
Friss transmission is applicable when same antenna is used for both transmission and reception.
Options
A : TRUE
B : FALSE
C : -
D : -
If the operating frequency increases, powers received by the receiving antenna __
Options
A : will decrease
B : will Increase
C : is Independent of frequency
D : is not predictable
The physical aperture of an isotropic radiator is ___
Options
A : \frac{4\pi \eta}{\lambda^2}
B : \frac{4\pi}{\lambda^2 \eta}
C : \frac{\lambda^2}{4\pi \eta}
D : \frac{\lambda^2\eta}{4\pi}
What is the distance between antennas to apply the Friss transmission equation in terms of antennas largest dimension?
Options
A : R ? 2D2/?
B : R ? 2D2/?
C : R ? 2?2/D
D : R ? 2?2/D
Which of the following is the Friss transmission equation for the matched polarization of antennas?
Options
A : \frac{P_r}{P_t} = \frac{G_t G_r\lambda^2}{(4?R)^2}
B : \frac{P_t}{P_r} = \frac{G_t G_r\lambda^2}{(4?R)^2}
C : \frac{P_r}{P_t} = \frac{G_t G_r\lambda^2}{4?R^2}
D : \frac{P_t}{P_r} = \frac{G_t G_r\lambda^2}{4?R^2}