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How does a microstrip antenna work?

Last Updated: 28th May, 2020

A patch antenna or microstrip antenna is anarrowband, wide-beam antenna. It is also-called printedantenna. It has two dimensional physical geometry. Thesimplest patch antenna uses a patch which is one-halfwavelength long, so that the metal surface acts as a resonatorsimilarly to the half-wave dipole antennas.

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Hereof, how does a microstrip patch antenna work?

It consists of a rectangular metal patch on adielectric substrate and is excited by a voltage source across themetal patch and the bottom ground plane of the substrate.The microstrip antenna produces maximum radiation in thebroadside direction (θ = 0), with ideally no radiation alongthe substrate edges (θ = 90°).

Subsequently, question is, what are patch antennas used for? It is widely used in portable wireless devicesbecause 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 highgain array antennas, and phased arrays in which the beam canbe electronically steered.

In this regard, what is meant by microstrip antenna?

In telecommunication, a microstrip antenna (alsoknown as a printed antenna) usually means anantenna fabricated using microstrip techniques on aprinted circuit board (PCB). It is a kind of internalantenna. Most microstrip antennas consist of multiplepatches in a two-dimensional array.

Who invented microstrip antenna?

With the wireless technology becoming ubiquitous, manyengineers will be taking advantage of Bob's invention -microstrip patch antenna, in one form or the other. Likemany great people, Bob will be remembered through hisinvention for generations to come !!

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