Is patch antenna monopole?

Monopole antenna comes under the category of wired antennas while microstrip patch comes under the patch antennas category. Monopole antennas generally used at low frequency while microstrip antennas used at microwave frequency.

What are patch antenna used for?

What Does Patch Antenna Mean? A patch antenna is a low-profile directional radio antenna that is used for indoor locations covering single-floor offices, stores and small studios. It is mounted on a small, rectangular, flat surface and consists of two metallic plates placed upon each other.

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.

What are the advantages of patch antenna?

Compared with conventional antennas, microstrip patch antennas have more advantages and better prospects. They are lighter in weight, low volume, low cost, low profile, smaller in dimension and ease of fabrication and conformity.

How does a monopole antenna work?

Like a vertically suspended dipole antenna, a monopole has an omnidirectional radiation pattern: It radiates with equal power in all azimuthal directions perpendicular to the antenna. The radiated power varies with elevation angle, with the radiation dropping off to zero at the zenith on the antenna axis.

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.

Why do we use microstrip patch antenna?

Microstrip patch antennae radiate primarily because of the fringing fields between the patch edge and the ground plane. For good antenna performance, a thick dielectric substrate having a low dielectric constant (<6) is desirable since it provides higher efficiency, larger bandwidth and better radiation.

What are the drawbacks of patch antennas?

However, as applications move to higher frequencies, conventional patch antenna designs encounter severe limitations such as narrow bandwidth, low gain and surface wave losses. There is always the demand of increasing the bandwidth and data rate of the wireless communication systems.

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.

Where is monopole antenna used?

Applications – Cellular and cordless telephones, walkie-talkies, CB radios, etc. As Ground Plane Radius R increases, the gain maxima shifts towards lower resonance frequency. Gain and radiation pattern of a monopole antenna on small ground plane (< λ) are similar to that of dipole antenna.

What is the gain of monopole antenna?

The vertical dipole—or its electromagnetic equivalent, the monopole—could be considered one of the best antennas for LMR applications. It is omnidirectional (in azimuth) and, if it is a half-wavelength long, has a gain of 1.64 (or G = 2.15 dBi) in the horizontal plane.

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.