What is a patch array antenna?
A patch antenna is a type of antenna with a low profile, which can be mounted on a surface. Multiple patch antennas on the same substrate (see image) called microstrip antennas, can be used to make high gain array antennas, and phased arrays in which the beam can be electronically steered.
What is microstrip array antenna?
A microstrip antenna array is one of the simplest forms of antennas available. The antenna consists of a single printed circuit board with an RF connector and perhaps an absorptive load. Microstrip antennas can be flat or curved to suit the structure to which they are mounted.
What is microstrip or patch antenna?
A patch antenna or microstrip antenna is a narrowband, wide-beam antenna. It is also-called printed 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.
What is the use of microstrip patch antenna?
Microstrip antennae are also used in the fields of RFID (radio frequency identification), mobile communication and healthcare. Basically, an RFID system consists of a tag and a reader. Generally, it uses frequencies between 30 Hz and 5.8 GHz. In telemedicine application, microstrip antennae operate at 2.45 GHz.
What are the types of microstrip antenna?
There are three types in microstrip antenna: Microstrip patch antenna, Microstrip slot/travelling antenna and Printed dipole antenna. Among the above three types microstrip patch antenna can have any shape.
What are the advantages of patch antenna?
Since then, microstrip antennas are considered as the most common types of antennas due to their obvious advantages of light weight, low cost, low profile, planar configuration, easy of conformal, superior portability, suitable for arrays, easy for fabrication, and easy integration with microwave monolithic integrate …
What is microstrip patch antenna and its advantage disadvantage?
➨The spurious radiation exists in various microstrip based antennas such as microstrip patch antenna, microstrip slot antenna and printed dipole antenna. ➨It offers low efficiency due to dielectric losses and conductor losses. ➨It offers lower gain. ➨It has higher level of cross polarization radiation.
What are the different types of microstrip antennas?
Common microstrip antenna shapes are square, rectangular, circular and elliptical , but any continuous shape is possible. Some patch antennas do not use a dielectric substrate and instead are made of a metal patch mounted above a ground plane using dielectric spacers; the resulting structure is less rugged but has a wider bandwidth.
What is fringing effect in microstrip patch antenna?
Fringing effect is a non-linearity in the radiation pattern of the microstrip antenna due to the effect of the physical layout of the patch antenna. This non-linearity results in the performance of the antenna being negatively affected. The effect is also due to the geometry of the patch antenna.
How does the microstrip antenna work?
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.
What is a wifi patch antenna?
patch antenna. Share this item with your network: A patch antenna is a wafer-like directional antenna suitable for covering single-floor small offices, small stores and other indoor locations where access points cannot be placed centrally.