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Why radar using the phased array?
A Phased array of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and suppressed in undesired directions. This is particularly useful in a 3D plane where the object changes co-ordinates, in different directions.
What are the differences between broadside array and end fire array?
end fire array A combination of identical and equally spaced antenna that radiate along the axis of the axis of the antenna array is known as an end fire array. the elements are fed with a current of equal magnitude but opposite in phase.due to this variation in phase ,the radiation obtained is unidirectional. broadside array when the maximum radiation of an array is directed normal to the axis of array it is known as broadside array. in a broadside array combination a number of identical antennas are set up along a line drawn perpendicular to their respective axis.
What are the applications of array?
arrays are used to store the group of data which are of same type. These arrays can be applied in student mark sheet applications,online library applications etc.
What is a broadfire array?
A broadfire array is a type of antenna configuration designed to provide a wide radiation pattern, allowing for effective signal transmission and reception over a large area. Unlike narrowband antennas, which focus energy in a specific direction, broadfire arrays can cover multiple directions simultaneously, making them ideal for applications such as broadcasting and wireless communications. This configuration often employs multiple elements working together to achieve the desired coverage and performance.
What is binomial array in antenna?
Binomial array is an array in which the amplitudes of the antenna elements in the array are arranged according to the coefficients of the binomial series... The need for a binomial array is i) In uniform linear array as the array length is increased to increase the directivity, the secondary lobes also occurs. ii) For certain applications, it is highly desirable that secondary lobes should be eliminated completely or reduced to minimum desirable level compared to main lobes. Suman Kalyan...
What has the author M W Nurnberger written?
M. W. Nurnberger has written: 'A new planar feed for slot spiral antennas' -- subject(s): Spiral antennas, Planar structures, Very high frequencies, Slot antennas, Radio antennas, Antenna feeds, Antenna design
What has the author Zhi Ning Chen written?
Zhi Ning Chen has written: 'Antennas for Portable Devices' 'Broadband planar antennas' -- subject(s): Broadband communication systems, Microstrip antennas, Equipment and supplies, Antennas (Electronics)
What are the key principles and applications of planar chemistry?
Planar chemistry involves the study of molecules and compounds that are flat or planar in shape. Key principles include understanding the structure and bonding of planar molecules, as well as their reactivity and properties. Applications of planar chemistry include the design of organic materials, pharmaceuticals, and electronic devices.
What antennas are basically a length of wire or metal?
Dipole antennas and monopole antennas are examples of antennas that are essentially a length of wire or metal. These antennas are simple in design and are effective for various communication applications.
What has the author R Acosta written?
R. Acosta has written: 'System overview on electromagnetic compensation for reflector antenna surface distortion' -- subject(s): Antennas, Reflector, Phased array antennas, Reflector Antennas 'ACTS on-orbit multibeam antenna pattern measurements' -- subject(s): ACTS, Antenna radiation patters, Cassegrain antennas, Electromagnetic measurement, Extremely high frequencies, Microwave antennas, Multibeam antennas, Satellite antennas 'Active feed array compensation for reflector antenna surface distortions' -- subject(s): Antenna arrays 'Analytical approximation of a distortred reflector surface defined by a discrete set of points' -- subject(s): Antennas, Reflector, Artificial satellites in telecommunication, Reflector Antennas 'Computation of the radiation characteristics of a generalized phased array' -- subject(s): Numerical analysis, Near fields, Phased arrays, Microwave circuits, Phased array antennas, Antenna radiation patterns, Satellite antennas, Integrated circuits, Microwave integrated circuits
Why radar using the phased array?
A Phased array of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and suppressed in undesired directions. This is particularly useful in a 3D plane where the object changes co-ordinates, in different directions.
What type of antenna used for satellite?
Satellite communications typically use parabolic dish antennas, which are highly effective for receiving and transmitting signals to and from satellites. These antennas focus incoming signals onto a receiver, enhancing signal strength and quality. Additionally, phased array antennas are increasingly used for their ability to electronically steer the beam without moving parts, making them suitable for applications requiring rapid tracking of satellites.
Applications of gauss law?
Describe Gauss's law and its application to planar symmetry
What has the author H V Cottony written?
H. V. Cottony has written: 'Gain patterns of hardened array antennas using dipoles as radiating elements' -- subject(s): Antennas, Antennas (Electronics), Shortwave radio, Radiation, Measurement
What has the author Tom Jeffrey written?
Tom Jeffrey has written: 'Phased-array radar design' -- subject(s): Radar, Phased array antennas, Design and construction
What has the author W L Stutzman written?
W. L. Stutzman has written: 'Feasibility study of a synthesis procedure for array feeds to improve radiation performance of large distorted reflector antennas' -- subject(s): Antennas, Reflector, Reflector Antennas
How many dish antennas are combined in the VLA?
The Very Large Array (VLA) located in New Mexico consists of 27 dish antennas. These antennas work together to create a combined resolution equal to that of a single dish with a diameter of 36 kilometers.
