- Patch Antenna Array Calculator Online
- Patch Antenna Array Calculator
- Patch Array Antenna Gain Calculator
- Patch Antenna Array Calculator Instructions
A patch antenna is a type of antenna with a low profile, which can be mounted on a surface. It consists of a planar rectangular, circular, triangular, or any geometrical sheet or 'patch' of metal, mounted over a larger sheet of metal called a ground plane. They are the original type of microstrip antenna described by Howell in 1972;[1] the two metal sheets together form a resonant piece of microstriptransmission line with a length of approximately one-half wavelength of the radio waves. The radiation mechanism arises from fringing fields along the radiating edges.[2] The radiation at the edges causes the antenna to act slightly larger electrically than its physical dimensions, so in order for the antenna to be resonant, a length of microstrip transmission line slightly shorter than one-half the wavelength at the frequency is 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. Multiple patch antennas on the same substrate (see image) called microstrip antennas, can be used to make high gainarray antennas, and phased arrays in which the beam can be electronically steered.
Design and implementation of patch antenna 5 designs, and very versatile in terms of resonant frequency, polarization, pattern, and impedance. These antennas can be mounted on the surface of high-performance aircraft, spacecraft, satellites, missiles, cars, and even handheld mobile telephones. This is a GUI for calculating the design parameters and plotting the radiation characteristics of a Rectangular Patch Antenna. For more information visit my blog.
A variant of the patch antenna commonly used in mobile phones is the shorted patch antenna, or planar inverted-F antenna (PIFA). 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.Another variant of patch antenna with the partially etched ground plane, also known as printed monopole antenna, is a very versatile antenna for dual-band operations.[3]
See also[edit]
- Microwave Radiometer (Juno) (Space probe instrument, uses patch array antennas)
Patch Antenna Array Calculator Online
References[edit]
Patch Antenna Array Calculator
- ^'Microstrip Antennas,' IEEE International Symposium on Antennas and Propagation, Williamsburg Virginia, 1972 pp. 177-180
- ^'Radiation from Microstrip Radiators,' IEEE Transactions on Microwave Theory and Techniques, April 1969, Vol. 17, No. 4 pp.235-236
- ^J. R. Panda, Rakhesh Singh Kshetrimayum, 'A Printed 2.4 GHz/5.8 GHz Dual-band Monopole Antenna with a Protruding Stub in the Ground Plane for WLAN and RFID Applications, ' Progress In Electromagnetics Research, vol. 117, pp. 425-434, 2011
External links[edit]
Patch Array Antenna Gain Calculator
- Patch Antenna Tutorial EM Talk
