Kd Prasad Google Books Link Free: Antenna And Wave Propagation By

You can find the book Antenna and Wave Propagation K.D. Prasad Google Books

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• Radiation pattern: Angular distribution of radiated power; main lobe, side lobes, and nulls characterize directional behavior.
• Directivity and gain: Directivity measures concentration of radiation in a direction; gain includes losses (radiation efficiency) and feeding/network effects.
• Bandwidth and Q-factor: Antennas resonate; bandwidth inversely relates to quality factor Q. Electrically small antennas typically exhibit narrow bandwidths.
• Polarization: Orientation of the electric field (linear, circular, elliptical); matching polarization between transmitter and receiver maximizes received power.
• Arrays and beamforming: Combining multiple elements with amplitude and phase control creates array factors enabling beam steering, sidelobe control, and increased directivity.

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