| Antenna and Quasioptical Products |
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The series SFH is a conical horn antenna with corrugation on the inside walls. This feature provides symmetrical radiation patterns in E- and H-planes. This antenna also provides lower sidelobes as compared to the series CHA, conical horn antenna. The standard design has a 3 dB beamwidth of 25° (typical) from 18 to 220 GHz. The series SFH is offered with circular or rectangular waveguide output. The circular waveguide output version can support multiple polarization and be used in conjunction with other Millitech products such as the POL, SPL and WAC series
Click
Here to download the SFH product datasheet
Electrical Specifications
| Performance Parameter | SFH Range Available |
|---|---|
| Frequency range | 18 to 220 GHz (Note 1) |
| Beam angles, HPBW | 25° dB (nom) (Note 2) |
| Gain | 5 to 23 dBi (nom) (Note 3) |
| Sidelobes | -30 dB (typ) |
| VSWR | 1.5:1 (typ) |
| Cross polarization isolation | >30 dB |
1) For other frequencies, please
consult Millitech.
2) 10 to 60 possible, 25 standard.
3) 5 to 23 dBi standard, depending on beam angle.
The series CRA Cassegrain reflector antenna is available from 18 to 220 GHz with reflector diameters from 6 to 48 inches. The 3 dB beamwidth and gain of the antenna are dependent on the diameter of the main reflector and the frequency. The sidelobes are slightly higher than those of the GOA series. The series CRA design offers compactness, versatility and high gain. It can support multiple polarization by incorporating the series OMT orthomode transducer.
Click
Here to download the CRA product datasheet
Electrical Specifications
| Performance Parameter | Range Available | Remarks |
| Frequency range | 18 to 220 GHz | Practical range for waveguide feeds. |
| Standard reflector diameters | 6, 10, 12, 18, 24, 36, 48 inches | Custom diameters available. |
| Beamwidth, HPBW | 0.1° to 8.0° (nom) | Beamwidth depends on frequency and diameter selected. |
| Gain | 26 to 62 dBi (nom) | Depending upon the frequency and diameter selected. |
| Sidelobes | 18 dB (typ) | Typical value for standard product. Blockage by subreflector determines sidelobe level. |
| VSWR | 1.5:1 (typ) | Return loss 14 dB typical. |
Note: Nonstandard reflector diameters are available. Please consult Millitech.
These 18 - 40 GHz Gaussian Optic Antennas provide superior efficiency due to low blockage and low-loss optics. The dual-polarization versions have excellent cross-polarization isolation using a grid polarizer and two linear polarized feeds.
FEATURES AND APPLICATIONS:
- High Efficiency / No Blockage
- Available in 6”, 9” and 12” versions
- Linear and Dual-Linear Configurations
- High Polarization Isolation (Dual-Pol)
- 2.92mm connector(s)
Click
Here to download the 18 - 40 GHz Antenna product datasheet
Electrical Specifications
| Parameter | Specification | ||||||||
| Frequency Range | 18 - 40 GHz | ||||||||
| Polarization Isolation, typ. | 30 dB | ||||||||
| Effective Aperture | 6" | 9" | 12" | ||||||
| Active Frequency (GHz) | 18 | 29 | 40 | 18 | 28 | 40 | 18 | 29 | 40 |
| Gain, typ. (dBi) | 26.1 | 30.3 | 33.1 | 29.7 | 33.8 | 36.6 | 32.1 | 36.3 | 39.1 |
| Beamwidth, Typ. (deg) | 7.7 | 4.8 | 3.5 | 5.2 | 3.3 | 2.4 | 3.9 | 2.4 | 1.8 |
The series GOA is a Gaussian optics lens antenna that provides high efficiency and low sidelobes. It offers symmetric antenna patterns in E- and H-planes. The antenna is available in frequencies ranging from 18 to 220 GHz. The gain and 3 dB beamwidth depend on the aperture size of the lens and the frequency. The antenna can be configured in a number of ways to offer polarization diversity.
Click
Here to download the GOA product datasheet
Electrical Specifications
| Performance Parameter | Range Available | Remarks |
| Frequency range | 18 to 220 GHz (Note 1) | Practical range for waveguide feeds. |
| Lens diameters | 3 in / 7.62
cm 6 in / 15.24 cm 9 in / 22.86 cm 12 in / 30.48 cm |
Other diameters available as custom products. |
| Beam angles | 0.1 to 10ø (typ) | Depending on lens diameter selected and frequency of operation. |
| Gain | 25.0 to 53.9 dBi (typ) | Depending on lens diameter selected and frequency of operation. |
| Sidelobes | 23 dB (typ) | Depending on lens size and requirements. |
| VSWR | 1.5:1 (typ) | Return loss 14 dB (typ) |
| Cross polarization isolation,(dual polarization version) | >30 dB | Scalar feed with polarizer grid provides very high cross polarization isolation |
1) Other ranges available upon request. Please consult Millitech for details.
The series ODA omnidirectional antenna contains a half wave or quarter wave dipole and an integral radome. It provides 360° coverage in azimuth, and a typical gain of 2 dBi at the beam peak, that is ±10° from the horizon. The typical bandwidth is 5% around a center frequency ranging from 20 to 96 GHz. The series ODA antenna has a very compact design.
Click
Here to download the ODA product datasheet
Electrical Specifications
| Model | ODA-42 | ODA-28 | ODA-22 | ODA-15 | ODA-10 |
| Frequency (GHz) ± 5% | 22 | 35 | 43 | 60 | 94 |
| Azimuth | 360° | ||||
| Elevation | +140° from beam peak to -20° from beam peak | ||||
| Beam peak | ± 10° from horizontal center | ||||
| Gain | 2 dB (nom) | ||||
| Polarization | Vertical | ||||
The series POL linear-circular polarizer converts a polarized signal from linear to circular, or the reverse. The frequency range is 10% maximum of center frequency, with a low axial ratio of 1 dB. The series POL linear-circular polarizer offers low insertion loss with broadband operation.
Click
Here to download the POL product datasheet
Electrical Specifications
| Performance Parameter | Linear-Circular Polarizer |
| Frequency range (GHz) | 18 to 170 |
| Axial ratio 10% bandwidth (max) | 1.0 dB |
| Cross polarization isolation (dB) (typ) | 20 |
| VSWR (typ) | 1.3:1 |
The series GFS freestanding wire grid polarizer consists of an array of parallel wires stretched tightly into a planar surface and affixed to a mounting frame. The closely spaced wires reflect essentially 100% of the electric field components parallel to the direction of the wires and transmit the component of the field perpendicular to the wires.
Theoretical Grid Performance (max grid size 10”)
Click
Here to download the GFS product datasheet
Electrical Specifications
| Wire diameter (in/mm) (Note1) | Wires per inch | Maximum operation (GHz) | Typical power transmission at maximum frequency | |
| E Field perpendicular to wires | E Field parallel to wires | |||
| 0.001 / 0.025 | 200 | 200 | >0.99 | 0.01 |
| 0.001 / 0.025 | 300 | 650 | 0.98 | 0.01 |
1) Wire diameter of 0.0005 in
also available. Please consult Millitech for details.
Please consult Millitech for specific requirement requests.
The series OMT orthomode transducer is used to combine or separate two orthogonal linearly polarized signals simultaneously. Typically, the output (or input) port is in the circular waveguide, which can support linear polarization. Isolation is greater than 25 dB between the two linear polarizations, and nar¬rower band versions with greater isolation are also available. This transducer can be used in conjunction with the series POL polarizer to handle circular polarized signals.
Click
Here to download the OMT product datasheet
Electrical Specifications
| Performance Parameter | |
| Frequency range | 18 to 100 GHz (Note 1) |
| Bandwidth (Note 2) | 5 - 10% |
| Isolation (Note 3) | 25 to 40 dB |
| VSWR (Note 4) | 1.4:1 (typ) |
| Power handling | 100 Watts, CW |
1) Higher frequencies quoted
upon request.
2) Please contact Millitech to discuss bandwidth options.
3) Depending on requirements.
4) Lower VSWR options may be available depending on requirements.
The series SGH standard gain horns, offered as conical and pyramidal, are used to measure gain of other antennas. These horns are offered from 18 to 325 GHz in twelve waveguide bands. The SGH horns are ideally suited for reference sources in dual channel antenna test receivers, and can be used as pickup horns for radiation monitoring.
Click
Here to down the SGH product datasheet
Electrical Specifications
| Pyramidal Horn (Gain = 24 dBi) | ||||||
| Frequency band | K | Ka | Q | U | V | E |
| Range (GHz) | 18-26.5 | 26.5-40 | 33-50 | 40-60 | 50-75 | 60-90 |
| VSWR (typ) | 1.2:1 | 1.2:1 | 1.2:1 | 1.2:1 | 1.2:1 | 1.2:1 |
| Frequency band | W | F | D | G | --- | --- |
| Range (GHz) | 75-110 | 90-140 | 110-170 | 140-220 | 170-260 | 220-325 |
| VSWR (typ) | 1.2:1 | 1.25:1 | 1.25:1 | 1.25:1 | 1.25:1 | 1.25:1 |
| Conical Horn (Gain = 21 dBi) | ||||||
| Frequency band | K | Ka | Q | U | V | E |
| Range (GHz) | 18-26.5 | 26.5-40 | 33-50 | 40-60 | 50-75 | 60-90 |
| VSWR (typ) | 1.2:1 | 1.2:1 | 1.2:1 | 1.2:1 | 1.2:1 | 1.2:1 |
| Frequency band | W | F | D | G | --- | --- |
| Range (GHz) | 75-110 | 90-140 | 110-170 | 140-220 | 170-260 | 220-325 |
| VSWR (typ) | 1.2:1 | 1.25:1 | 1.25:1 | 1.25:1 | 1.25:1 | 1.25:1 |
| A low cost alternative to the SFH series, this antenna provides a 3 dB beamwidth ranging from 10° to 60°. It is offered with either a circular or rectangular waveguide output, but the circular output product can support multiple polarization, and can be used with other Millitech products such as the POL, SPL, and WAC series. |
|
Click Here to download the CHA product datasheet
|
The series WAC circular-to-rectangular waveguide adapter provides transition from standard rectangular to circular waveguide. The adapter can be used with conical and scalar feed horns, and provides wide bandwidths with low loss and low VSWR. The series WAC adapter is available in a complete range of flange patterns.
Click
Here to download the WAC product datasheet
Electrical Specifications
| Performance Parameter | Circular-to-Rectangular Waveguide Adapter |
| Frequency range (GHz) | 18 to 170 |
| Axial ratio, 10% bandwidth (max) | --- |
| Cross polarization isolation (dB) (typ) | >25 |
| VSWR (typ) | 1.15:1 |
The series MPC monopulse comparator features unrivaled insertion loss performance far superior to typical industry counterparts. The comparator is a 5-port device that can be used in target acquisition and tracking systems.
Electrical Specifications
| Model | MPC-10 | MPC-28 | |
| Frequency range (GHz) | 94 to 96 | 34 to 36 | |
| Insertion loss (dB) (typ) | 1.0,Σ port | 1.0,Σ port | |
| VSWR | Sum (Σ) port (typ) | 1.6:1 | 1.6:1 |
| Δ Az port (Σ Az) (typ) | 1.8:1 | 1.8:1 | |
| Δ El port (Σ El) (typ) | 1.8:1 | 1.8:1 | |
| Null depth (dB) (typ) | 30 | 30 | |
Note: Custom frequencies available upon request.
Please consult Millitech for details.
Millitech will engineer custom variations of our standard MMW components, as well as, multi-component assemblies and solutions, with minimal non-recurring engineering (NRE) costs, to meet your specific requirements. Typically these modification are to meet one or more of the following requirements:
- Tuned for specific performance characteristics
- Extended operational temperatures
- MIL/Space qualified
- Hi-rel screening
- RoHS compliant
- ITAR compliant
Click Here for more information on Millitech's custom capabilities, components, assemblies and solutions.
Please contact your local sales representative or Millitech's sales team for information and quoting.