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| Parameter | Value | |-----------|-------| | Frequency | 2.45 GHz | | εᵣ (FR4) | 4.4 | | h | 1.6 mm | | | ~37.3 mm | | εᵣₑff | ~3.37 | | ΔL | ~0.71 mm | | Calculated L | ~28.4 mm | | 50Ω feed line width (on same FR4) | ~3.1 mm | | Approx. inset distance (from edge) | ~9–10 mm |
The width of the patch influences the radiation efficiency and the antenna's input impedance. It is calculated using the target resonant frequency ( ) and the substrate's dielectric constant ( ϵrepsilon sub r
) reduces the overall physical footprint of your antenna but shrinks the operating bandwidth and radiation efficiency. 5. Feed Line Matching Techniques Once the patch dimensions ( patch antenna calculator
): The thickness of the dielectric layer separating the conductive patch from the continuous ground plane underneath. 2. Mathematical Step-by-Step Design Procedure
The actual resonant length of the microstrip patch is slightly less than a half-wavelength in the effective medium due to the field extensions ( ΔLcap delta cap L ) on both sides: | Parameter | Value | |-----------|-------| | Frequency | 2
| Tool | Type | Best for | |------|------|-----------| | | Online | Quick rectangular patch | | Pasternack’s calculator | Online | Basic dimension checks | | QucsStudio | Desktop | Schematic + EM simulation | | Python with scikit-rf | Script | Automated design sweeps | | OpenEMS | FDTD simulator | Accurate final verification |
[ \varepsilon_reff = \frac\varepsilon_r + 12 + \frac\varepsilon_r - 12\left(1 + \frac12hW\right)^-1/2 ] patch antenna calculator
A consists of a flat rectangular (or circular) conductive patch on a dielectric substrate (circuit board material), with a ground plane on the opposite side.
| Parameter | Value | |-----------|-------| | Frequency | 2.45 GHz | | εᵣ (FR4) | 4.4 | | h | 1.6 mm | | | ~37.3 mm | | εᵣₑff | ~3.37 | | ΔL | ~0.71 mm | | Calculated L | ~28.4 mm | | 50Ω feed line width (on same FR4) | ~3.1 mm | | Approx. inset distance (from edge) | ~9–10 mm |
The width of the patch influences the radiation efficiency and the antenna's input impedance. It is calculated using the target resonant frequency ( ) and the substrate's dielectric constant ( ϵrepsilon sub r
) reduces the overall physical footprint of your antenna but shrinks the operating bandwidth and radiation efficiency. 5. Feed Line Matching Techniques Once the patch dimensions (
): The thickness of the dielectric layer separating the conductive patch from the continuous ground plane underneath. 2. Mathematical Step-by-Step Design Procedure
The actual resonant length of the microstrip patch is slightly less than a half-wavelength in the effective medium due to the field extensions ( ΔLcap delta cap L ) on both sides:
| Tool | Type | Best for | |------|------|-----------| | | Online | Quick rectangular patch | | Pasternack’s calculator | Online | Basic dimension checks | | QucsStudio | Desktop | Schematic + EM simulation | | Python with scikit-rf | Script | Automated design sweeps | | OpenEMS | FDTD simulator | Accurate final verification |
[ \varepsilon_reff = \frac\varepsilon_r + 12 + \frac\varepsilon_r - 12\left(1 + \frac12hW\right)^-1/2 ]
A consists of a flat rectangular (or circular) conductive patch on a dielectric substrate (circuit board material), with a ground plane on the opposite side.
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