Tools

Microstrip Patch Antenna Calculator

Substrate Parameters   Dielectric Constant (εr): Dielectric Height (h): mm mil

Resonant Frequency   fr: GHz       Physical Parameters   Length (L): mm mil Width (W): mm mil

Input Impedance (Edge): Ohm

Description

The microstrip patch antenna calculator determines the length (L) and width (W) of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. The substrate parameters (ε_r and h) are required. If the ratio (L/W) is close to unity, the radiation pattern will be symmetric but may not provide a resonable input impedance. Therefore, this calculator also suggests a value for W. The radiation edge input impedance is also calculated and is based on W.

Synthesize

Enter the desired resonant frequency (f_r)to determine the physical length (L) and width (W) of the microstrip line. The input impedance at the radiation edge is also computed. Press Synthesize to see the results.

Analyze

Enter values for L and W for the microstrip patch to determine its f_r. The input impedance at the radiation edge is also computed. Press Analyze to see the results.