Are fractal antennas still used?
Fractals have been used in antennas since 1988 and their advantages are good multiband performance, wide bandwidth, and small area and that reference showed that the gain with small size results from constructive interference with multiple current maxima, afforded by the electrically long structure in a small area.
Where are patch antennas used?
The patch antenna is mainly practical at microwave frequencies, at which wavelengths are short enough that the patches are conveniently small. It is widely used in portable wireless devices because of the ease of fabricating it on printed circuit boards.
What is meant by microstrip patch antenna?
It is a kind of internal antenna. They are mostly used at microwave frequencies. An individual microstrip antenna consists of a patch of metal foil of various shapes (a patch antenna) on the surface of a PCB (printed circuit board), with a metal foil ground plane on the other side of the board.
How do we use fractals in everyday life?
Not only that: fractal images are actually being used nowadays to create special effects. Utilized in shows such as Star Trek and Star Wars, fractals are used to create landscapes that are otherwise impossible with conventional technology. On a related note, fractals are also used in creating some computer graphics.
How do patch antennas work?
Working of Patch Antenna. A microstrip or patch antenna operates in a way that when current though a feed line reaches the strip of the antenna, then electromagnetic waves are generated. The waves from the patch start getting radiated from the width side.
What is the difference between patch antenna and microstrip antenna?
Patch Antenna or Microstrip Antenna. A patch antenna or microstrip antenna is a narrowband, wide-beam antenna. Some patch antennas do not use a dielectric substrate and instead made of a metal patch mounted above a ground plane using dielectric spacers. The resulting structure is less rugged but has a wider bandwidth.
Why do we use microstrip antenna?
In global positioning satellite (GPS) systems, circularly polarised microstrip antennae are used. They are very compact in size and quite expensive due to their positioning. Microstrip antennae are also used in the fields of RFID (radio frequency identification), mobile communication and healthcare.