CST – Computer Simulation Technology

Circular Disc Monopole

Image of the Circular disc monopole. Image of the Circular disc monopole.

Wireless communication systems have significantly increased the demand for low cost, ultra-broadband antennas that are capable of supporting high data speeds and multiband operation.

A planar monopole antenna that meets this requirement is the Circular disc monopole (CDM). By replacing the wire of a basic monopole with a circular conducting disk, a CDM with extraordinary impedance bandwidth (1:8 or more) can be achieved.

The performance graphs below show the 3D patterns vs frequency and the typical ultra-wideband reflection coefficient performance vs normalized frequency.

Typical 3D radiation patterns vs frequency. Typical 3D radiation patterns vs frequency. Typical reflection coefficient [|S11|] vs frequency. Typical reflection coefficient [|S11|] vs frequency.

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