What are the types of patch antenna?
The commonly available shapes of patch antenna are rectangular, circular, dipole, triangular, square and elliptical with rectangular and circular shapes the most common.
What are the advantages of patch antenna?
Advantages of Micro-strip patch antennas
- Light weight and low volume.
- Low creation cost, subsequently can be produced in substantial amounts.
- linear and circular polarization, supports both,.
- Can be effectively coordinated with microwave integrated circuits (MICs).
- Capable of double and triple frequency operations.
How does patch antenna improve return loss?
For improving the return loss, you have to change the design parameters of your antenna. For example , change the length, breadth, height, thickness of the substrate etc., Even check the imepance matching part also.
What is antenna theory?
A transmitting antenna is one, which converts electrical signals into electromagnetic waves and radiates them. A receiving antenna is one, which converts electromagnetic waves from the received beam into electrical signals. In two-way communication, the same antenna can be used for both transmission and reception.
What are the advantages and disadvantages of the patch antenna?
➨It has higher level of cross polarization radiation. ➨It has lower power handling capability. ➨It has inherently lower impedance bandwidth. ➨The microstrip antenna structure radiates from feeds and other junction points.
What is the radiation pattern of patch antenna?
The radiation pattern of microstrip or patch antenna is broad. It has low radiation power and narrow frequency bandwidth. To have a greater directivity, an array can be formed by using these patch antennas.
What is beamwidth of patch antenna?
For typical patch construction, the –3 dB beamwidth is about 65 degrees, or ±32.5 degrees from boresight. The radiation pattern is relatively narrow for a simple antenna, which makes patch antennas desirable for assembly into arrays.
How can I improve my antenna s11?
If s11 is near about -6dB , what are different methods to improve s11….you can try the below methods to increase antennas bandwidth.
- Increase substrate height.
- Include partial grounds.
- Include round shapes.
- Include slots.
- DRAs can also be used to enhance BW.
What is meant by patch antenna?
A patch antenna is a type of antenna with a low profile, which can be mounted on a surface. In this antenna, one corner of the patch (or sometimes one edge) is grounded with a ground pin. This variant has better matching than the standard patch.