Products: High Performance RFI Vents & Filter Composites | VP Series
General Information
Our VP Series of honeycomb ventilation panels can be custom manufactured from steel, brass or stainless steel. When selecting the material, corrosion resistance relevant to the application environment should be considered along with the attenuation requirements.
Typical construction styles are shown in drawings VP 1 and VP 2 (other styles are available). Typical attenuation figures for the material types and thickness options are shown below. Both rectangular and circular styles are available. Various plating and gasket options are available and should be discussed at the time of ordering. The VP Series of RFI ventilation panels are manufactured to customer specification and a detailed drawing should be supplied.
Applications
The VP Series is designed for high performance applications such as screened rooms, military applications and shelters where high attenuation is required across the frequency range and particularly in the H-field. This range of ventilation panels is especially suitable for EMP and TEMPEST applications.
Specifications
| Standard Cell Sizes (Opening x Depth) | ||
|---|---|---|
| 3.2 x 6.4mm | 3.2 x 25.4mm | 4.8 x 19.2mm |
| 3.2 x 12.7mm | 4.8 x 6.4mm | 4.8 x 25.4mm |
| 3.2 x 16mm | 4.8 x 12.7mm | 6.4 x 12.7mm |
| 3.2 x 19.2mm | 4.8 x 16mm | 6.4 x 25.4mm |
Performance
| Frequency | Field | Brass 3.2mm Cell 12.7mm Thick | Brass 3.2mm Cell 25.4mm Thick | Brass 4.8mm Cell 25.4mm Thick | Steel 3.2mm Cell 12.7mm Thick | Steel 3.2mm Cell 25.4mm Thick |
|---|---|---|---|---|---|---|
| 1 KHz | H | 13 | 25 | 20 | 16 | 30 |
| 10 KHz | H | 38 | 80 | 70 | 50 | 85 |
| 100 KHz | H | 80 | 100 | 95 | 90 | 118 |
| 1 MHz | H | 105 | 110 | 110 | 110 | 118 |
| 10 Mhz | H | 105 | 110 | 110 | 110 | 118 |
| 1 KHz | E | 110 | 110 | 110 | 110 | 111 |
| 10 KHz | E | 115 | 115 | 115 | 115 | 115 |
| 100 KHz | E | 115 | 120 | 120 | 115 | 120 |
| 1 MHz | E | 115 | 120 | 120 | 115 | 120 |
| 10 MHz | E | 115 | 120 | 120 | 115 | 120 |
| 100 MHz | P | 115 | 130 | 130 | 115 | 130 |
| 400 MHz | P | 115 | 130 | 130 | 115 | 130 |
| 1 GHz | P | 105 | 120 | 120 | 105 | 120 |
| 10 GHz | P | 105 | 120 | 120 | 105 | 120 |
| Frequency | Field | Steel 4.8mm Cell 25.4mm Thick | S/Steel 3.2mm Cell 12.7mm Thick | S/Steel 3.2mm Cell 25.4mm Thick | S/Steel 4.8mm Cell 12.7mm Thick |
|---|---|---|---|---|---|
| 1 KHz | H | 29 | 16 | 30 | 29 |
| 10 KHz | H | 72 | 50 | 85 | 72 |
| 100 KHz | H | 108 | 90 | 118 | 108 |
| 1 MHz | H | 115 | 110 | 118 | 115 |
| 10 Mhz | H | 115 | 110 | 118 | 115 |
| 1 KHz | E | 111 | 110 | 111 | 111 |
| 10 KHz | E | 115 | 115 | 115 | 115 |
| 100 KHz | E | 120 | 115 | 115 | 120 |
| 1 MHz | E | 120 | 115 | 115 | 120 |
| 10 MHz | E | 120 | 115 | 115 | 120 |
| 100 MHz | P | 130 | 115 | 115 | 130 |
| 400 MHz | P | 130 | 115 | 115 | 130 |
| 1 GHz | P | 120 | 105 | 105 | 120 |
| 10 GHz | P | 120 | 105 | 105 | 120 |
Tolerances
| Overall dimensions | ± 0.8mm |
| Fixing holes/fasteners | ± 0.5mm |
| with jigs ± 0.2mm |
How to order
Produced to customer drawings
Examples / Notes
- Note:
- Performance will be affected by the type of mounting used.
- Figures based on 300mm x 300mm test pieces.

