The antennas which offer high operational bandwidth and the antenna parameters are maintained over a wide range of antennas are called:

Related MCQs

• A rectangular horn antenna has an aperture area of 3λ × 2λ. If the aperture efficiency of an antenna is 90%, then the directivity of the antenna is:
• The electrical size of antenna is increased by antenna array to avoid size lobes compared to single antenna.
•              antennas have gain less than reflector antennas but have more lenient tolerance on surfaces.
• Based on the size of the loops, loop antennas are classified as small and large loops. This is the only classification of loop antenna.
•                    antennas consist of a regular arrangement of antenna elements with a feed network
• Lens antennas are classified into two types. One being fast antenna, the other one is:
• If the beam width of an antenna in two orthogonal planes are 300 and 600. Then the directivity of the antenna is:
• If the power input to an antenna is 100 mW and if the radiated power is measured to be 90 mW, then the efficiency of the antenna is:
• If an antenna has a directivity of 16 and radiation efficiency of 0.9, then the gain of the antenna is:
• An antenna has a field pattern of E (θ) = cos2 θ, θ varies between 0 and 900. Half power beam width of the antenna is: