a

4. What is the nature of radiation pattern of an isotropic antenna?
6. In a non-isotropic directional antenna, which radiating lobe axis makes an angle of 180° w.r.t. major beam of an antenna?
7. In flared transmission line, the radiation phenomenon increases due to in flaring
9. If an observation point is closely located to the source, then the field is termed as
10. Which ionization layer exists during day time & usually vanishes at night due to highest recombination rate?
12. Which pattern is generated due to plotting of square of amplitude of an electric field?
13. If the tower antenna is not grounded, which method of excitation is/are applicable for it?
14. On which factor/s do/does the radiation field of a small loop depend?
15. F2 layer of appleton region acts as a significant reflecting medium for

1. The knowledge of which parameter is sufficient for deriving the timevarying electromagnetic field?
2. Wave front is basically a locus of points acquiring similar Phase
3. Power density is basically termed as power per unit area
5. From the radiation point of view, small loops are radiators
8. In which kind of waveform is the phase velocity defined
9. Which mode of propagation is adopted in HF antennas?
11. Which waveform plays a crucial role in determining the radiation pattern of the dipole/wire antennas?