Slot antenna - PowerPoint PPT Presentation

About This Presentation
Title:

Slot antenna

Description:

Slot antenna A slot antenna is a radiator made by cutting a one-half wavelength slot in a conducting sheet of metal or into the side or top of a waveguide. – PowerPoint PPT presentation

Number of Views:5150
Avg rating:3.0/5.0
Slides: 16
Provided by: GEC63
Category:
Tags: antenna | slot

less

Transcript and Presenter's Notes

Title: Slot antenna


1
Slot antenna
2
Slot antenna
  • A slot antenna is a radiator made by cutting a
    one-half wavelength slot in a conducting sheet of
    metal or into the side or top of a waveguide.

3
Slot antenna
  • The slot antenna has the same characteristics as
    a standard dipole antenna, as long as the metal
    sheet is very large compared to ? at the
    operating frequency.
  • Slot antennas are widely used on high-speed
    aircraft where the antenna can be integrated into
    the metallic skin of the aircraft.

4
Slot antenna
5
Radiation pattern of Slot antenna
Far Field Components of Slot Radiation
6
Horn Antennas
  • flared waveguides that produce a nearly uniform
    phase front larger than the waveguide itself
  • constructed in a variety of shapes such as
    sectoral E-plane, sectoral H-plane, pyramidal,
    conical, etc.

7
E- and H-Plane Patterns of the E-Plane Sectoral
Horn
E-Plane
H-Plane
8
E- and H-Plane Patterns of the H-Plane Sectoral
Horn
E-Plane
H-Plane
9
E and H-Plane Patterns
E-Plane
H-Plane
)
10

E- and H-Plane Patterns of The Conical Horn
Antenna
E-Plane
H-Plane
11
Pyramidal Horn
  • combination of the E-plane and H-plane horns and
    as such is flared in both directions

12

13
Other horn antenna types
  • Multimode Horns
  • Corrugated Horns
  • Hog Horns
  • Biconical Horns
  • Dielectric Loaded Horns
  • etc.

14
Application Areas
  • used as a feed element for large radio astronomy,
    satellite tracking and communication dishes
  • A common element of phased arrays
  • used in the calibration, other high-gain antennas
  • used for making electromagnetic interference
    measurements

15
(No Transcript)
Write a Comment
User Comments (0)
About PowerShow.com