FREQUENCY
0.4–8 GHz
TYP. PEAK GAIN
8 dBi
TYP. VSWR
< 2.5:1
POLARIZATION
Linear
20:1 bandwidth
One directional antenna spanning 400 MHz to 8 GHz.
Thin & lightweight
FR-4 board, 13 × 13.8 in and under 0.25 in thick.
Designed in the USA
Designed, assembled, and tested in California.
Product Details
The UWB400-D is an antipodal Vivaldi antenna covering 400 MHz to 8 GHz, a 20:1 bandwidth, in a single thin panel. It delivers directional radiation patterns and typical gain up to 8 dBi from a lightweight FR-4 board under a quarter-inch thick, making it an easy, low-cost addition to a test bench, mast, or enclosure. It is well suited to software-defined radio, wideband sensing and monitoring, electronic warfare and signals intelligence, direction finding, and university research.
- Antipodal Vivaldi covering 400 MHz to 8 GHz (a 20:1 bandwidth) in a single directional antenna.
- Typical gain up to 8 dBi with directional radiation patterns; VSWR typically below 2:1 across most of the band.
- Thin, lightweight FR-4 board (13 × 13.8 in, under 0.25 in thick including the SMA connector).
- Linearly polarized, 50 Ω, SMA female, ideal for SDR, monitoring, and direction finding.
- Versatile across SDR, EW and SIGINT, direction finding, cellular / WiFi / LoRa / IoT, and radar and university research.
- Typical performance data (.txt) available for download.
Specifications
General
| Design | Antipodal Vivaldi |
| Polarization | Linear (H/V by orientation) |
| Connector | SMA female |
| Impedance | 50 Ω |
| Maximum input power | 10 dBm (10 mW) |
| Construction | FR-4 printed circuit board |
| Mounting | 8 mm holes, 50 mm spacing |
| Dimensions (L × W × H) | 331 × 350 × 6.35 mm (13.0 × 13.8 × 0.25 in) |
Performance over frequency
| PARAMETER | FREQUENCY | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| VSWR | 0.40 – 0.65 GHz | 2.0 | 2.3 | 3.0 | – |
| 0.65 – 3.8 GHz | 1.1 | 1.5 | 2.0 | ||
| 3.8 – 8.0 GHz | 1.2 | 2.0 | 2.9 | ||
| Gain | 0.4 – 8.0 GHz | 3.1 | 8.0 | 9.6 | dBi |
| HPBW, E-plane | 0.4 – 8.0 GHz | 25 | 50 | 84 | deg |
| HPBW, H-plane | 0.4 – 8.0 GHz | 27 | 40 | 129 |
Specifications are typical and subject to change without notice. Height includes the SMA connector (board is 1.2 mm thick).
