Fringing Field In Microstrip Patch Antenna
- Fringing Field In Microstrip Patch Antenna Calculator
- Microstrip Patch Antenna Calculator
- Fringing Field In Microstrip Patch Antenna
Fringing effect is the magnetic characteristic caused by theshape around directly opposing the magnetic surfaces.
What is fringing effect in magnetic field?
How do you reduce magnetic fringing effect?
Rectangular microstrip antenna Fringing fields have a great effect on the performance of a microstrip antenna. In microstrip antennas the electric filed in the center of the patch is zero. The radiation is due to the fringing field between the periphery of the patch and the ground plane. For the substrate will be increase the fringing field of the patch and thus the radiated power. A high loss tangent (tan increases the dielectric loss and therefore reduce the antenna performance.
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Fringing Field In Microstrip Patch Antenna Calculator
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Micro strip antennas are low-profile antennas. A metal patch mounted at a ground level with a di-electric material in-between constitutes a Micro strip or Patch Antenna. These are very low size antennas having low radiation.
Frequency Range
The patch antennas are popular for low profile applications at frequencies above 100MHz.
Microstrip Patch Antenna Calculator
Construction & Working of Micro strip Antennas
Micro strip antenna consists of a very thin metallic strip placed on a ground plane with a di-electric material in-between. The radiating element and feed lines are placed by the process of photo-etching on the di-electric material. Usually, the patch or micro-strip is choosen to be square, circular or rectangular in shape for the ease of analysis and fabrication. The following image shows a micro-strip or patch antenna.
The length of the metal patch is 位/2. When the antenna is excited, the waves generated within the di-electric undergo reflections and the energyis radiated from the edges of the metal patch,which is very low.
Radiation Pattern
Fringing Field In Microstrip Patch Antenna
The radiation pattern of microstrip or patch antenna is broad. It has low radiation power and narrow frequency bandwidth.
The radiation pattern of a microstrip or patch antenna is shown above. It has lesser directivity. To have a greater directivity, an array can be formed by using these patch antennas.
Advantages
The following are the advantages of Micro strip antenna −
- Lighteweight
- Low cost
- Ease of installation
Disadvantages
The following are the disadvantages of Micro strip antenna −
- Inefficient radiation
- Narrow frequency bandwidth
Applications
The following are the applications of Micro strip antenna −
- Used in Space craft applications
- Used in Air craft applications
- Used in Low profile antenna applications