GATE Electromagnetics: Waveguides and Optical Fibers – Previous Year Questions
9 GATE previous year questions on Waveguides and Optical Fibers (Electromagnetics, Electronics and Communication Engineering) with answers and explanations, from every paper.
- GATE 2017 EC Q63 – An optical fiber is kept along the z direction. The refractive indices for the electric fields along x and y directions in the fiber are n x = 1.5000…
- GATE 2015 EC Q63 – The longitudinal component of the magnetic field inside an air-filled rectangular waveguide made of a perfect electric conductor is given by the…
- GATE 2018 EC Q58 – The cutoff frequency of TE 01 mode of an air filled rectangular waveguide having inner dimensions a cm b cm (a>b) is twice that of the dominant TE 10…
- GATE 2019 EC Q47 – The dispersion equation of a waveguide, which relates the wavenumber k to the frequency , is k()=(1/c)2- 02 where the speed of light c=3108 m/s, and 0…
- GATE 2019 EC Q61 – A rectangular waveguide of width w and height h has cut-off frequencies for TE 10 and TE 11 modes in the ratio 1 : 2. The aspect ratio w/h, rounded…
- GATE 2021 EC Q35 – The refractive indices of the core and cladding of an optical fiber are 1.50 and 1.48, respectively. The critical propagation angle, which is defined…
- GATE 2021 EC Q64 – A standard air-filled rectangular waveguide with dimensions a=8 cm, b=4 cm, operates at 3.4 GHz. For the dominant mode of wave propagation, the phase…
- GATE 2022 EC Q52 – A waveguide consists of two infinite parallel plates (perfect conductors) at a separation of 10-4 cm, with air as the dielectric. Assume the speed of…
- GATE 2026 EC Q33 – The cutoff frequency (in GHz) for the dominant TE 10 mode of an air-filled rectangular waveguide of inner dimension 0.28 inch 0.14 inch is . (rounded…