Practical Antennas » Exercise – 1
6. An antenna with very high gain and very narrow beamwidth.
(a) helical antenna
(b) discone antenna
(c) horn antenna
(d) parabolic dish antennaSubject Name : Communication Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
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Practical Antennas » Exercise - 1 10. What is the gain of isotropic antenna ? (a) 10 (b) 1 (c) 10 (d) 100- Practical Antennas » Exercise - 1 2. Gain of a half-wave dipole antenna over isotropic. (a) 2.15 dB (b) 1.76 dB (c) 1 dB (d) 0 dB
- Practical Antennas » Exercise - 1 3. What is the polarization of a discone antenna ? (a) vertical (b) horizontal (c) circular (d) spiral
- Practical Antennas » Exercise - 1 4. What is the gain of the Hertzian dipole over isotropic antenna ? (a) 1.64 dB (b) 2.15 dB (c) 1.76 dB (d) 1.55 dB
- Practical Antennas » Exercise - 1 5. Which antenna radiates an omnidirectional pattern in the horizontal plane with vertical polarization ? (a) marconi antenna (b) discone antenna (c) horn antenna (d) helical antenna