What is the antenna?
An antenna is a device that radiates into space or receives electromagnetic waves from a space in a radio transceiver system.
Development history of base station antennas
What is a radio wave?
Radio waves are a form of signal and energy propagation. During propagation, the electric and magnetic fields are perpendicular to each other in space and are perpendicular to the direction of propagation.
Direction of propagation of radio waves
Relationship between radio wave wavelength and frequency
Wavelength λ = C / f (C is the speed of light, f is the operating frequency, λ is the wavelength)
What is an antenna polarized wave?
When electromagnetic waves propagate in space, if the direction of the electric field vector remains fixed or rotates according to a certain law, the electromagnetic wave is called a polarized wave.
What is a dual polarized antenna?
The antenna consists of two orthogonal polarization directions of +45° and -45°, and simultaneously operates in the duplex mode.
What is an antenna half-wave oscillator?
The half-wave oscillator is the basic radiating element of the antenna. The longer the wavelength, the larger the antenna half-wave oscillator.
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