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Printed dipole slot antenna

A slot antenna consists of a metal surface, usually a flat plate, with one or more holes or slots cut out. When the plate is driven as an antenna by a driving frequency, the slot radiates electromagnetic waves in a way similar to a dipole antenna. The shape and size of the slot, as well as the driving frequency, determine the radiation pattern. Often the . A dipole antenna, created by Heinrich Rudolph Hertz around , is an antenna that can be made by a simple wire, with a center-fed driven element for transmitting or receiving radio frequency energy2/5(2). In telecommunication, a microstrip antenna (also known as a printed antenna) The antenna only has a single radiation edge (equivalent slot) which lowers the directivity/gain of the antenna. The impedance bandwidth is slightly lower than a half-wavelength full patch as the coupling between radiating edges has been eliminated. Other types. .

Slot antenna

The ability to create high gain arrays in a low-profile antenna is one reason that patch arrays are common on airplanes and in other military applications. Retrieved from " https: The impedance bandwidth is slightly lower than a half-wavelength full patch as the coupling between radiating edges has been eliminated. Retrieved from " https: This may be replaced with a physical shorting plane to create a quarter-wavelength microstrip antenna.

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Microstrip antenna

In telecommunication , a microstrip antenna also known as a printed antenna usually means an antenna fabricated using microstrip techniques on a printed circuit board PCB. An individual microstrip antenna consists of a patch of metal foil of various shapes a patch antenna on the surface of a PCB, with a metal foil ground plane on the other side of the board. Most microstrip antennas consist of multiple patches in a two-dimensional array.

The antenna is usually connected to the transmitter or receiver through foil microstrip transmission lines. The radio frequency current is applied or in receiving antennas the received signal is produced between the antenna and ground plane. Microstrip antennas have become very popular in recent decades due to their thin planar profile which can be incorporated into the surfaces of consumer products, aircraft and missiles; their ease of fabrication using printed circuit techniques; the ease of integrating the antenna on the same board with the rest of the circuit, and the possibility of adding active devices such as microwave integrated circuits to the antenna itself to make active antennas.

The most common type of microstrip antenna is the patch antenna. Antennas using patches as constitutive elements in an array are also possible.

A patch antenna is a narrowband, wide- beam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board , with a continuous metal layer bonded to the opposite side of the substrate which forms a ground plane.

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