directivity वाक्य
उदाहरण वाक्य
मोबाइल
- Phased array design is, however, sometimes useful for beamsteering, or for sidelobe mitigation, but making these compromises necessarily reduces directivity.
- The directivity is shown to be a function only of the source size and shape, not of the specific type of transducer used.
- The reference antenna is usually the theoretical perfect isotropic radiator, which radiates uniformly in all directions and hence has a directivity of 1.
- As with directivity, when the gain G of an antenna is given independently of direction it refers to its maximum gain in any direction.
- As a consequence of their directivity, directional antennas also send less ( and receive less ) signal from directions other than the main beam.
- In Beverages longer than two wavelengths, directivity does not increase because the currents in the antenna cannot remain in phase with the radio wave.
- Side lobe levels can be reduced by tapering the edges of the aperture distribution ( changing from uniformity ) at the expense of reduced directivity.
- Even though an isotropic antenna cannot exist in practice, it is used as a base of comparison to calculate the directivity of actual antennas.
- A loudspeaker with a high degree of directivity ( narrow dispersion pattern ) can be said to have a high " Q ".
- For industrial noise map production, the most important thing is the description of noise sources : sound power levels, directivity, working periods.
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