An antenna is a device or mechanism that is made of metallic material and absorbs or emits electromagnetic waves, also called electromagnetic radiation. Antennas are used for many types of telecommunication, a type of long-distance communication that uses radio waves to transmit messages which are ...
1. Non-directional antenna : It radiates energy in all the direction, which is also called as isotropic antenna. In fact there is nothing like ideal isotropic antenna, each antenna will have some directivity. Simple half wave dipole falls in this category. It is also called as Hertz antenna....
In this wireless principles lesson, we will cover antenna types used in wireless LANS and we will learn wireless topology types like BSS, ESS, IBSS. Wireless communication is a communication type that is done over Radio Frequency (RF) Signals. As all communication types, here there is a ...
Modulation is a term widely used in telecommunication or wireless networks. Modulation basically is used to convert information (digital bit stream or analog audio signal) in the form that can be physically transmitted over the air or cable. Information is referred as baseband or modulating signal....
Modular antennae system mounted on commercial airlines for onboard mobile telecommunication purposes, has three different types of antenna which work in two distinct frequency bandsThe antenna system comprises a Gatelink antennae (1), a Satcom Ku antennae (2), an Immarsat Satcom antennae (3) ...
Power radiated by a linear antenna is \(\begin{array}{l}P\alpha \frac{1}{{{\lambda }^{2}}}\Rightarrow Power=\frac{\ell }{{{\lambda }^{2}}}\end{array} \) Where l = Length of the antenna λ =Wavelength of the transmitting signal ...
Three legs self supporting steel pole communciation tower can be produced according to guyer's requirement, the specification can aslo be ajusted according to buyer's requirement by our engineers, and the antenna stand and platform can be installed in any position as buyer's ...
As an example, antenna aperture size restrictions limit the capabilities of smallsats in the telecommunications field. Conversely, due to the ease of downsizing the sensors, low-orbit constellations of small spacecraft are usually practical for different types of remote sensing. Small satellites are ...
The attenuator is highly used aftersignal generator circuits. It helps in attenuating or reducing the strength of high-level signals before applying them to theAntenna circuits. An attenuator is a two-port electronic device It is designed usingresistorsto weaken or attenuate a signal. Attenuators ar...
improving services, making use of new spectrum, and better integrating with other open standards using OFDMA with a cyclic prefix (CP) on the downlink (DL) and on the uplink (UL) as well as support beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation...