Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)


 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Antenna & wave propagation PPT
Post: #1

Antenna & wave propagation



.pptx  1Antenna.pptx (Size: 530.27 KB / Downloads: 31)


Antenna Arrays

Antennas with a given radiation pattern may be arranged in such a way that the pattern yield a different radiation pattern. Like:
Linear array
Circular array
Planar array {rectangular array}
Conformal array {aircraft skin}

Pattern multiplication theorem

Array pattern = array element pattern
array factor [AF].
Array element pattern - the pattern of the individual array element. Array factor - a function dependent only on the geometry of the array
and the excitation (amplitude, phase) of the elements.

Antenna arrays types:

Broadside array
End fire array
Collinear array
Parasitic array

Broadside array is one in which a number of identical parallel antennas are set up along a line drawn perpendicular to their respective axis as shown in figure. In broadside array individual elements are equally spaced along a line and each element is fed with current of equal magnitude.
End fire array An end-fire array looks similar to a broadside array. The currents in the elements of the end-fire array, however, are usually 180 degrees out of phase with each other as indicated by the arrows.
Collinear array is usually mounted vertically, in order to increase overall gain and directivity in the horizontal direction.
Parasitic arrays represent another method of achieving high antenna gains. A parasitic array consists of one or more parasitic elements placed in parallel with each other and, in most cases, at the same line-of-sight level. The parasitic element is fed inductively by radiated energy coming from the driven element connected to the transmitter.
 

Marked Categories : antennas and wave propagation seminar, seminar topics for ece in antenna and wave propagation, propagation wave ppt, download ppt of wave propagation, antenna pattern multiplication ppt, antenna wave and propogation ppt, download ppt and pdf of antenna wave propagarion, antennas and wave propagation seminar topics, antennas and wave propagation pdf seminar topics, antennas and wave propagation ppt download, antenna and wave propagation powerpoint, ppt on antenna and wave propagation, antennas and wave propagation ppt, seminar topics on wave propagation with ppts, ppts on antenna and wave propagation, antenna and wave propagation ppt, wave propagation ppt,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
Thumbs Up a project report on college alumni assosition in php ppt Guest 0 0 23-07-2017 03:43 PM
Last Post: Guest
  seminar report high rise buildings ppt Guest 0 0 22-07-2017 12:25 PM
Last Post: Guest
  what is 7 qc tools in hindi ppt Guest 4 2,248 21-07-2017 05:24 PM
Last Post: Guest
  gear hobs project report and ppt Guest 0 0 20-07-2017 03:08 PM
Last Post: Guest
  polytronics free ppt download Guest 0 0 16-07-2017 04:43 PM
Last Post: Guest
Smile advance technology in automobiles ppt Guest 0 201 16-07-2017 12:20 AM
Last Post: Guest
  harnessing light of possibilities and challenges ppt Guest 0 1,101 16-07-2017 12:20 AM
Last Post: Guest
  download ppt for ieee paper efficient authentication for mobile n pervasive computing Guest 0 253 16-07-2017 12:20 AM
Last Post: Guest
  seminar ppt on internet time theft Guest 0 168 16-07-2017 12:20 AM
Last Post: Guest
Smile laser broadband from nasa semin ppt Guest 0 280 16-07-2017 12:20 AM
Last Post: Guest
This Page May Contain What is Antenna & wave propagation PPT And Latest Information/News About Antenna & wave propagation PPT,If Not ...Use Search to get more info about Antenna & wave propagation PPT Or Ask Here

Options: