The path difference given by two-ray model is ___(a) \(\frac{4πh_t h_r}{λd^2}\)(b) \(\frac{4πh_t h_r}{d}\)(c) \(\frac{4h_t h_r}{d}\)(d) \(\frac{2h_t h_r}{d}\)The question was asked in a job interview.My doubt is from Radio Wave Propagation topic in section Radio Wave Propagation of Antennas

The path difference given by two-ray model is ___(a) \(\frac{4πh_t h_

1.	The path difference given by two-ray model is ___(a) \(\frac{4πh_t h_r}{λd^2}\)(b) \(\frac{4πh_t h_r}{d}\)(c) \(\frac{4h_t h_r}{d}\)(d) \(\frac{2h_t h_r}{d}\)The question was asked in a job interview.My doubt is from Radio Wave Propagation topic in section Radio Wave Propagation of Antennas
Answer» The CORRECT answer is (d) \(\frac{2h_t h_r}{d}\) To ELABORATE: The path difference GIVEN by two-ray MODEL is \(\frac{2h_t h_r}{d}.\) and its phase difference is given as \(∅=\frac{2π}{λ} ∆x=\frac{4πh_t h_r}{d}.\)

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The path difference given by two-ray model is ___(a) \(\frac{4πh_t h_r}{λd^2}\)(b) \(\frac{4πh_t h_r}{d}\)(c) \(\frac{4h_t h_r}{d}\)(d) \(\frac{2h_t h_r}{d}\)The question was asked in a job interview.My doubt is from Radio Wave Propagation topic in section Radio Wave Propagation of Antennas

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