Standard Gain Horn Antenna-Built-in Connector
Standard Gain Horn Antenna provides stable gain, predictable radiation patterns and wide frequency coverage for antenna measurements and RF calibration. Widely used in radar systems, satellite communication, antenna testing laboratories, EMC measurements, RF chambers and microwave research environments.
Standard Gain Horn Antennas with Integrated Coaxial Connectors
AO Microwave’s high-precision standard gain horn antennas with built-in connectors are designed to provide direct coaxial connection for microwave and millimeter-wave radiation with a predictable gain and linear polarization. By machining the waveguide-to-coaxial adapter transition directly into the back-short cavity of the horn, we eliminate the need for a separate transition adapter. Fabricated from premium aluminum alloys via CNC milling, these antennas incorporate gold-plated coaxial pins (SMA, 2.92mm, or 2.4mm) to maintain low electrical resistance. Operating up to 50 GHz, our built-in connector horns deliver standard gain values of 10, 15, 20, or 25 dBi, a low typical input VSWR of < 1.25:1, and low insertion loss.
These integrated antennas are engineered to provide a compact, lightweight routing solution. By eliminating the bulky physical flange interface, they enable direct coaxial connection, making them highly suited for compact anechoic chamber testing, portable field strength monitoring, and radar cross-section (RCS) setups.
| Part No | Frequency/GHz | VSWR (Max) | Gain/dB (Avg) | E Plane 3dB Beamwidth (Typ) | H Plane 3dB Beamwidth (Typ) | Polarization | Interface Type |
|---|---|---|---|---|---|---|---|
| AO2300-SGAH10NK | 0.32-0.49 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO2100-SGAH10NK | 0.35-0.53 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO1800-SGAH10NK | 0.41-0.62 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO1500-SGAH10NK | 0.49-0.75 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO1150-SGAH10NK | 0.64-0.98 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO975-SGAH10NK | 0.75-1.15 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO770-SGAH10NK | 0.96-1.46 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO650-SGAH10NK | 1.13-1.73 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO510-SGAH10NK | 1.45-2.20 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO430-SGAH10NK | 1.72-2.61 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO340-SGAH10NK | 2.17-3.30 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO284-SGAH10NK | 2.60-3.95 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO229-SGAH10NK | 3.22-4.90 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO187-SGAH10NK | 3.94-5.99 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO159-SGAH10NK | 4.64-7.05 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO137-SGAH10NK | 5.38-8.17 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO112-SGAH10NK | 6.57-9.99 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO90-SGAH10NK | 8.20-12.5 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO75-SGAH10NK | 9.84-15.0 | 1.5 | 10 | 50° | 50° | Linear | N Female |
| AO62-SGAH10SK | 11.9-18.0 | 1.5 | 10 | 50° | 50° | Linear | SMA Female |
| AO51-SGAH10SK | 14.5-22.0 | 1.5 | 10 | 50° | 50° | Linear | SMA Female |
| AO42-SGAH102.92K | 17.6-26.7 | 1.5 | 10 | 50° | 50° | Linear | 2.92mm Female |
| AO34-SGAH102.92K | 21.7-33.0 | 1.5 | 10 | 50° | 50° | Linear | 2.92mm Female |
| AO28-SGAH102.92K | 26.5-40.0 | 1.5 | 10 | 50° | 50° | Linear | 2.92mm Female |
| AO975-SGAH15NK | 0.75-1.15 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO770-SGAH15NK | 0.96-1.46 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO650-SGAH15NK | 1.13-1.73 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO510-SGAH15NK | 1.45-2.20 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO430-SGAH15NK | 1.72-2.61 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO340-SGAH15NK | 2.17-3.30 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO284-SGAH15NK | 2.60-3.95 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO229-SGAH15NK | 3.22-4.90 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO187-SGAH15NK | 3.94-5.99 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO159-SGAH15NK | 4.64-7.05 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO137-SGAH15NK | 5.38-8.17 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO112-SGAH15NK | 6.57-9.99 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO90-SGAH15NK | 8.20-12.5 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO75-SGAH15NK | 9.84-15.0 | 1.5 | 15 | 30° | 30° | Linear | N Female |
| AO62-SGAH15SK | 11.9-18.0 | 1.5 | 15 | 30° | 30° | Linear | SMA Female |
| AO51-SGAH15SK | 14.5-22.0 | 1.5 | 15 | 30° | 30° | Linear | SMA Female |
| AO42-SGAH152.92K | 17.6-26.7 | 1.5 | 15 | 30° | 30° | Linear | 2.92mm Female |
| AO34-SGAH152.92K | 21.7-33.0 | 1.5 | 15 | 30° | 30° | Linear | 2.92mm Female |
| AO28-SGAH152.92K | 26.5-40.0 | 1.5 | 15 | 30° | 30° | Linear | 2.92mm Female |
| AO284-SGAH20NK | 2.60-3.95 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO229-SGAH20NK | 3.22-4.90 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO187-SGAH20NK | 3.94-5.99 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO159-SGAH20NK | 4.64-7.05 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO137-SGAH20NK | 5.38-8.17 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO112-SGAH20NK | 6.57-9.99 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO90-SGAH20NK | 8.20-12.5 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO75-SGAH20NK | 9.84-15.0 | 1.5 | 20 | 18° | 18° | Linear | N Female |
| AO62-SGAH20SK | 11.9-18.0 | 1.5 | 20 | 18° | 18° | Linear | SMA Female |
| AO51-SGAH20SK | 14.5-22.0 | 1.5 | 20 | 18° | 18° | Linear | SMA Female |
| AO42-SGAH202.92K | 17.6-26.7 | 1.5 | 20 | 18° | 18° | Linear | 2.92mm Female |
| AO34-SGAH202.92K | 21.7-33.0 | 1.5 | 20 | 18° | 18° | Linear | 2.92mm Female |
| AO28-SGAH202.92K | 26.5-40.0 | 1.5 | 20 | 18° | 18° | Linear | 2.92mm Female |
| AO90-SGAH25NK | 8.20-12.5 | 1.5 | 25 | 10° | 10° | Linear | N Female |
| AO75-SGAH25NK | 9.84-15.0 | 1.5 | 25 | 10° | 10° | Linear | N Female |
| AO62-SGAH25SK | 11.9-18.0 | 1.5 | 25 | 10° | 10° | Linear | SMA Female |
| AO51-SGAH25SK | 14.5-22.0 | 1.5 | 25 | 10° | 10° | Linear | SMA Female |
| AO42-SGAH252.92K | 17.6-26.7 | 1.5 | 25 | 10° | 10° | Linear | 2.92mm Female |
| AO34-SGAH252.92K | 21.7-33.0 | 1.5 | 25 | 10° | 10° | Linear | 2.92mm Female |
| AO28-SGAH252.92K | 26.5-40.0 | 1.5 | 25 | 10° | 10° | Linear | 2.92mm Female |
Integrated Cavity Tuning in Built-in Connector Horns
Built-in connector horn antennas eliminate the bolted flange interface between the waveguide horn and a separate waveguide-to-coaxial adapter. In this design, the transition probe is machined directly into the back-short cavity of the horn structure.
Tuning the transition probe directly within the horn's back-short requires precise mechanical alignment during fabrication. AO Microwave utilizes specialized internal tuning structures and 3D electromagnetic simulations to optimize the probe geometry, ensuring a flat, broadband VSWR response without the need for a separate transition adapter. This integrated design reduces overall size and weight, making it suitable for compact, space-limited testing.
Target Applications & Operational Advantages
By providing direct coaxial connection and low-reflection impedance matching, our built-in connector horn antennas secure critical measurement setups:
Compact Anechoic Chamber Testing
Function: Radiates or receives RF signals inside compact, space-limited anechoic chambers.
Advantage: Integrated construction eliminates the bulky flange interface, reducing physical space requirements and simplifying cable routing.
Portable Field Strength Monitoring
Function: Measures outdoor electromagnetic fields in spectrum monitoring and site surveys.
Advantage: Lightweight aluminum construction and direct coaxial connection simplify transport and setup, reducing operator fatigue.
Radar Cross-Section (RCS) Measurements
Function: Radiates and receives RF signals to measure the radar cross-section of targets.
Advantage: Highly precise gain calibration and low VSWR (<1.25) ensure consistent and repeatable measurements.
Built-in Connector Standard Gain Horn FAQs
Need compact Built-in Connector Standard Gain Horns?
Specify your frequency band, nominal gain (10/15/20/25 dBi), and coaxial connector type — we'll quote in 24 hours.
