Plates and panels
UHF Antenna Assembly
- Bounding box
- 25.0 × 30.5 × 13.2 mm
- Engine
- Precision B-rep
- Parameters
- 20
- Published
- October 23, 2026
Download
Free to download and use. See the terms.
The prompt
Generate a 3D CAD model of a UHF antenna assembly: - Base: circular disc, 25mm diameter, 1mm thick, with 12mm concentric hole - Top surface: circular copper patch, 20mm diameter, 0.018mm thick, centered - Bottom surface: full copper ground plane, 0.018mm thick, with 12mm hole - Two rectangular copper legs: 7mm × 12mm × 0.2mm thick, positioned vertically on top surface at opposite sides of patch (at ±8mm from center on X-axis), base soldered to PCB - Top ring: annular disc, 12mm OD, 8mm ID, 0.2mm thick, horizontal, positioned 12mm above PCB, connecting tops of both legs - Legs and ring are a single continuous copper sheet part - Small SMA connector at PCB edge (X=0, Y=-12.5mm) Export as STEP file with material assignments: Alumina (εr=9.8) for substrate, Copper for all metal parts.
Parameters
| Name | Value | Range |
|---|---|---|
| Substrate Diameter | 25 mm | 10 – 60 |
| Substrate Thickness | 1 mm | 0.2 – 5 |
| Substrate Center Hole | 12 mm | 0.5 – 30 |
| Top Patch Diameter | 20 mm | 5 – 50 |
| Patch Thickness | 0.02 mm | 0.005 – 0.2 |
| Ground Plane Diameter | 25 mm | 5 – 60 |
| Ground Plane Thickness | 0.02 mm | 0.005 – 0.2 |
| Ground Plane Center Hole | 12 mm | 0.5 – 30 |
| Leg Width (X) | 7 mm | 1 – 20 |
| Leg Height | 12 mm | 2 – 40 |
| Leg Offset from Center | 8 mm | 0 – 25 |
| Copper Sheet Thickness | 0.2 mm | 0.05 – 2 |
| Top Ring OD | 12 mm | 4 – 40 |
| Top Ring ID | 8 mm | 1 – 38 |
| Ring Height Above PCB | 12 mm | 2 – 40 |
| SMA Body Width (X) | 6 mm | 2 – 15 |
| SMA Body Length (Y) | 10 mm | 3 – 25 |
| SMA Body Height (Z) | 6 mm | 2 – 15 |
| SMA Dielectric Bore | 3 mm | 1 – 5 |
| SMA Center Pin Dia | 0.9 mm | 0.3 – 2 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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