Microwave and terahertz horn antennas
TeraSense offers quite a few models of terahertz and sub-THz sources (IMPATT diodes), Each THz source can be ordered either with respective WR- output flange or with rigidly fixed conical horn antenna. A detachable horn antenna is an optional add-on element, which can be attached to a respective WR- output flange. All in all, TeraSense offers a few types of horn antennas, as described below:
W-band antennas
Conical horn antenna for 100 GHz sources
- Frequency range: available with 100 GHz; 140 GHz; 180 GHz sources
- Beam shape: gaussian
- Divergence angle: +/- 9 degrees
- Gain: 20 dB
- Mounting provisions: rigidly fixed inside impatt case
- Weight: 0.059 kg (0.13 lbs)
- Size: 39 x 16 mm (1,54’’ x 0.63’’ in)
- VSWR typical: < 1.2
Detachable conical horn antenna for 100 GHz sources
- Frequency range: available with 100 GHz sources
- Beam shape: gaussian
- Divergence angle: +/- 7 degrees (WR-10), +/- 9 degrees (WR-8)
- Output aperture diameter (average): 16 mm (WR-10), 12 mm (WR-8)
- Gain: 25 dB (WR-10), 20 dB (WR-8)
- Mounting option 1: attached to WR-8 output flange (UG387/UM)
- Mounting option 2: attached to WR-10 output flange (UG387/UM)
- Weight: 0.033 kg (0.072 lbs)
- Size: 43 x 19 mm (1.7’’ x 0.75’’ in)
- VSWR typical: < 1.2
F-band antennas
Detachable conical horn antenna for 140 GHz sources
- Frequency range: available with 140 GHz sources
- Beam shape: gaussian
- Divergence angle: +/- 7 degrees
- Output aperture diameter (average): 10.4 mm
- Gain: 25 dB (WR-6)
- Mounting option: attached to WR-6 output flange
- Weight: 0.02 kg (0.044 lbs)
- Size: 29 x 19 mm (1.14’’ x 0.75’’ in)
Terahertz antennas
Detachable diagonal horn antennas for ~300 GHz sources
Medium-gain horn
- Frequency range: available with ~ 280 GHz – 290 GHz sources
- Beam shape: gaussian
- Divergence angle: ±11.5 degrees (H-plane), ±9 degrees (E-plane)
- Gain: 19 dB
- Mounting option: attached to WR-3.4 output flange
- Weight: 0.010 kg (0.023 lbs)
- Size: 17 x 19 mm (0.65’’ x 0.75’’ in)
High-gain horn
- Frequency range: available with ~ 280 GHz – 290 GHz sources
- Beam shape: gaussian
- Divergence angle: ±6.5 degrees (H-plane), ±6 degrees (E-plane)
- Gain: 24 dB
- Mounting option: attached to WR-3.4 output flange
- Weight: 0.020 kg (0.046 lbs)
- Size: 43 x 19 mm (1.69’’ x 0.75’’ in)
In the configuration with horn antennas our THz sources are used to ‘couple’ radiation to free space (free space impedance). Such horn antennas considerably enhance THz beam generated by IMPATT diode and improve their stability.