Patch Antenna Array Calculator

Microstrip Patch Antenna calculator | Patch Antenna Formula

For a frequency of 300MHz with a wavelength 1 metre, 0.5 metre antenna is required. Figure (1.1) Equivalent electric and magnetic surface current densities of a dipole antenna 1.2. Simple Dipole Antenna To understand the function of the antenna we consider the antenna to be enclosed by a surface volume and radiate in homogenous space (free space). 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. Figure 4: Patch Antenna Array in use for Wi-Fi communications Refer to Appendix A for the single patch antenna design procedure. Patch Antenna Array In order to increase main beam gain, reduce side lobe radiation, and increase directivity, the patch antenna design was expanded to a four element array. The design layout is shown in Figure 5. 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.

This Microstrip Patch Antenna calculator calculates patch length and width.This patch antenna calculator uses microstrip dielectric, height and frequency for calculation.

Microstrip line is most popular for antenna designs due to due to its Smaller size, Ease in fabrication andeasier troubleshooting. Hence microstrip patch antenna found its place in mobile phones and other rf circuit designsrequiring constained antenna devices.The patch antenna calculator calculates length and width as outputs and requires inputs such as RFcenter frequency, dielectric constant and height of substrate.

Example of Microstrip patch antenna calculator:
INPUTS :
Centre frequency (Fo)=1800MHz
Dielectric Constant (er)=11.9
Height of substrate (h)=1.5mm
OUTPUTS:
Patch width= 32.81 mm
Patch Length= 24.05 mm
Ground Plane Lg= 33.05 mm
Ground Plane Wg= 41.81mm

Microstrip Patch Antenna Calculator Formula

Following equations or formula are used for this microstrip patch antenna calculator.

Microstrip patch antenna is used in mobile handset due to simple look, lower cost, small size and light in weight.This antenna does not take any much extra size and can be etched on the same mobile PCB itself.It covers microstrip based DCS band design example of mobile patch antenna.Refer article >> on design of microstrip patch antenna used in the mobile phone.

Article on Microstrip Lines

Fig.1 : microstrip line

Microstrip line is used to carry Electro-Magnetic Waves (EM waves) or microwave frequency signals.It consists of 3 layers, conducting strip, dielectric and Ground plane.It is used to design and fabricate RF and microwave components such as directional coupler, power divider/combiner, filter, microstrip patch antenna, MMIC etc.Refer Microstrip line basics >> andMicrostrip line types >>.