Selective-Band Splashplate Antennas (Docking Feeds)
The frequency bands described below are some of our most popular however any frequency band is possible, within the range 1.5 to 22 GHz, with roughly a 0.4 GHz bandwidth for 2:1 VSWR. With a reduced VSWR specification a much wider bandwidth is achievable.
Please ENQUIRE for further information.

Linear Docking Feeds, covering 2 - 22 GHz frequency range
Circularly Polarised Docking Feeds, covering 1.9 - 13.2 GHz frequency range
Dual (Linear) Polarized Docking Feeds, covering 2 - 21 GHz & 35 GHz frequency range
Reflectors can be ordered using QSR#-* where # is the reflector diameter in mm and * is the focal length of the reflector. Please state 'suitable for docking feed'.
0.6 m reflector 203 mm focal length = QSR600-203
0.9 m reflector 337 mm focal length = QSR900-337
1.2 m reflector 457 mm focal length = QSR1200-457
Linear Docking Feeds
VSWR typically < 2 : 1 over 0.4 GHz bandwidth.
Replace the # with S for SMA connector, N for N Type, K for K-type (2.92 mm)
-
- Circular polarised version shown in picture
Circular polarised version shown in picture
Dipole Style (with radome)
| Frequency Range (GHz) |
Part Number |
| 2.0 - 2.5 |
QDF2-2.5# |
| 2.3 - 2.7 |
QDF2.3-2.7# |
| 2.5 - 2.8 |
QDF2.5-2.8# |
| 3.3 - 3.6 |
QDF3.3-3.6# |
| 3.5 - 4.0 |
QDF3.5-4# |
| 5.4 - 5.8 |
QDF5.4-5.8# |
| 5.9 - 6.4 |
QDF5.9-6.4# |
| 5.7 - 7.2 |
QDF5.7-7.2# |
| 6.5 - 6.9 |
QDF6.5-6.9# |

Splashplate Style
| Frequency Range (GHz) |
Part Number |
| 6.8 - 7.2 |
QDF6.8-7.2# |
| 7.0 - 7.5 |
QDF7-7.5# |
| 7.4 - 7.9 |
QDF7.4-7.9# |
| 7.8 - 8.2 |
QDF7.8-8.2# |
| 8.0 - 8.5 |
QDF8-8.5# |
| 8.4 - 8.7 |
QDF8.4-8.7# |
| 8.7 - 9.9 |
QDF8.7-9.9# |
| 10.8 - 11.6 |
QDF10.8-11.6# |
| 11.7 - 12.2 |
QDF11.7-12.2# |
| 12 - 12.4 |
QDF12-12.4# |
| 12.2 - 12.6 |
QDF12.2-12.6# |
| 12.7 - 13.3 |
QDF12.7-13.3# |
| 14.7 - 15.2 |
QDF14.7-15.2# |
| 17.5 - 19.5 |
QDF17.5-19.5# |
| 21 - 22 |
QDF21-22# |

Fixed splashplate style 17.5 - 19.5 GHz 0.25 m reflector antenna pictured right with integral radome - QDF17.5-19.5S Feed with QSR250-100 Reflector.
Click <HERE> for more information
Circularly Polarised Docking Feeds
VSWR typically < 2 : 1 over 0.4 GHz bandwidth. The circular waveguide ensures excellent out of band rejection of unwanted signals.
Replace the * with LH for left-hand polarisation and RH for right-hand polarisation
Replace the # with S for SMA connector, N for N Type, K for K-type (2.92 mm)

Backfire helix style (with radome)
| Frequency Range (GHz) |
Part Number |
| 1.9 - 2.3 |
QDF1.9-2.3#* |
| 2.0 - 2.4 |
QDF2-2.4#* |
| 2.4 - 2.7 |
QDF2.4-2.7#* |
| 3.3 - 3.7 |
QDF3.3-3.7#* |
| 4.4 - 4.7 |
QDF4.4-4.7#* |
| 4.7 - 5.0 |
QDF4.7-5#* |
| 5.4 - 5.8 |
QDF5.4-5.8#* |
| 5.8 - 6.0 |
QDF5.8-6#* |
| 6.5 - 7.0 |
QDF6.5-7#* |

Splashplate Style
| Frequency Range (GHz) |
Part Number |
| 6.8 - 7.2 |
QDF6.8-7.2#* |
| 7.0 - 7.5 |
QDF7-7.5#* |
| 8.0 - 8.6 |
QDF8-8.6#* |
| 10.0 - 10.5 |
QDF10-10.5#* |
| 10.2 - 10.7 |
QDF10.2-10.7#* |
| 12.2 - 12.5 |
QDF12.2-12.5#* |
Dual Polarised Linear Docking Feeds
VSWR typically < 2 : 1 over 0.4 GHz bandwidth. Isolation between connectors typically >30dB
Replace the # with S for SMA connector, N for N Type, K for K-type (2.92 mm)
Circular polarised version shown in picture
Dipole Style (with radome)
| Frequency Range (GHz) |
Part Number |
| 2.0 - 2.5 |
QDFDP2-2.5# |
| 2.4 - 2.8 |
QDFDP2.4-2.8# |
| 3.5 - 3.7 |
QDFDP3.5-3.7# |

Splashplate Style
| Frequency Range (GHz) |
Part Number |
| 7.0 - 7.7 |
QDFDP7-7.7# |
| 8.0 - 8.5 |
QDFDP8-8.5# |
| 10.2 - 10.5 |
QDFDP10.2-10.5# |
| 10.2 - 10.6 |
QDFDP10.2-10.6# |
| 12.2 - 12.5 |
QDFDP12.2-12.5# |
| 20 - 21 |
QDFDP20-21S |
Fixed splashplate style 20 - 21 GHz Dual polarised 0.25 m reflector antenna pictured right with integral radome - QDFDP20-21S Feed with QSR250-100 Reflector
click <HERE> for more information

