Stacked Logarithmic Periodic Broadband Antennas
STLP 9128 C – Stacked Log Periodic Antenna
The stacked Logarithmic Periodic Dipole Antenna consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary Log.-Per. designs could be maintained using the stacked LP design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of ca. 2-3 dB compared to an ordinary LPDA. This is especially important for immunity testing, where a maximum fieldstrength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimised illumination of the EuT with minimised ground reflection influence. Further the STLP 9128 C has an excellent cross-polar rejection.
Datasheet
Radiation Pattern
Short Measuring Distance
VSWR
Option: with 7/16-connector 3 kW
Option: with [13-30-connector] limited to 2500 MHz
but higher power up to 8 kW including adapter similar to AA 9202
Datasheet
Assembly of STLP Antennas
| Frequency Range: | (150)200-1500 (4000) MHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Max Power (7/16): | 2 kW (const.) |
| 3 kW (intermitt.) | |
| Max Power (N): | 1 kW (const.) |
| 2 kW (intermitt.) | |
| Connector: | Type 7/16 female |
| Type N female | |
| Impedance: | 50 Ohms nominal |
| Length: | 890 mm |
| Width: | 930 mm |
| Height | 940 mm |
| Weight: | 4.6 kg |
| Mounting: | 22 mm diameter tube |
STLP 9128 D – Stacked Log Periodic Antenna
The stacked Log Periodic Dipole Antenna (Stacked LPDA) consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary LPDA designs could be maintained using the stacked LPDA design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of 2.5 dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum fieldstrength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimised illumination of the EuT with minimised ground reflection influence.Further the cross polar rejection of the STLP 9128 D is excellent. The fastlinks allows to disassemble the rear elements without any need for further tools within a few seconds. These fastlinks divide the antenna into five parts, which can be stored and transported easily.
Datasheet
Radiation Pattern
Short Measuring Distance
Assembly of STLP Antennas
[fastlinks.pdf] for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
| Frequency Range: | (65)80-3000(4000) MHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Max Power (7/16): | 2 kW (const.) |
| 3 kW (intermitt.) | |
| Max Power (N): | 1 kW (const.) |
| 1.5 kW (intermitt.) | |
| Connector: | Type 7/16 female |
| Type N female | |
| Impedance: | 50 Ohms nominal |
| Length: | 1460 mm |
| Width: | 1850 mm |
| Height | 2000 mm |
| Weight: | 8.1 kg |
| Mounting: | 22 mm diameter tube |
STLP 9128 D special – Stacked Log Periodic Antenna
The stacked Log Periodic Dipole Antenna (Stacked LPDA) consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary LPDA designs could be maintained using the stacked LPDA design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement 2.5 dB compared to an ordinary LPDA Antenna. This is especially important for immunity testing, where a maximum fieldstrength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimised illumination of the EuT with minimised ground reflection influence.
Datasheet
Radiation Pattern
Short Measuring Distance
Assembly of STLP Antennas
The fastlinks allows to disassemble the rear elements without any need for further tools within a few seconds. These fastlinks divide the antenna into five parts, which can be stored and transported easily.
fastlinks for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
Main Application:
Generation of defined fieldstrength levels for immunity testing with good field uniformity and limited space.
| Frequency Range: | (70)80-3000(4000) MHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Max Power (7/16): | 2 kW (const.) |
| 3 kW (intermitt.) | |
| Max Power (N): | 1 kW (const.) |
| 1.5 kW (intermitt.) | |
| Connector: | Type 7/16 female |
| Type N female | |
| Impedance: | 50 Ohms nominal |
| Length: | 1480 mm |
| Width: | 1480 mm |
| Height | 1340 mm |
| Weight: | 8.1 kg |
| Mounting: | 22 mm diameter tube |
STLP 9128 E – Stacked Log Periodic Antenna
The stacked Log Periodic Dipole Antenna (Stacked LPDA) consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary LPDA designs could be maintained using the stacked LPDA design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of 2.0 dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum fieldstrength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimised illumination of the EuT with minimised ground reflection influence.Further the cross polar rejection of the STLP 9128 E is excellent. The fastlinks allows to disassemble the rear elements without any need for further tools within a few seconds. These fastlinks divide the antenna into five parts, which can be stored and transported easily.
Datasheet
Radiation Pattern
Short Measuring Distance
VSWR
Assembly of STLP Antennas
[fastlinks.pdf] for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
Main Application:
Generation of defined high field strength levels for radiated immunity testing.
| Frequency Range: | (65)80-1500(3000) MHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Max Power (7/16): | 2 kW (const.) |
| 3 kW (intermitt.) | |
| Max Power (N): | 1 kW (const.) |
| 1.5 kW (intermitt.) | |
| Connector: | Type 7/16 female |
| Type N female | |
| Impedance: | 50 Ohms nominal |
| Length: | 1660 mm |
| Width: | 2160 mm |
| Height | 1940 mm |
| Weight: | 10.0 kg |
| Mounting: | 22 mm diameter tube |
STLP 9128 E special – Stacked Log Periodic Antenna
The STLP 9128 E special is nearly identical like the STLP 9120 E but with folded longest elements and smaller structure angle.
The stacked Log Periodic Dipole Antenna (Stacked LPDA) consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary LPDA designs could be maintained using the stacked LPDA design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of 2.5 dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum fieldstrength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimised illumination of the EuT with minimised ground reflection influence.Further the cross polar rejection of the STLP 9128 E special is excellent. The fastlinks allows to disassemble the rear elements without any need for further tools within a few seconds. These fastlinks divide the antenna into five parts, which can be stored and transported easily.
Datasheet
Radiation Pattern
Short Measuring Distance
VSWR
Assembly of STLP Antennas
[fastlinks.pdf] for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
Main Application:
Generation of defined high field strength levels for radiated immunity testing.
| Frequency Range: | 80-1700(2700) MHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Max Power (7/16): | 2 kW (const.) |
| 3 kW (intermitt.) | |
| Max Power (N): | 1 kW (const.) |
| 1.5 kW (intermitt.) | |
| Connector: | Type 7/16 female |
| Type N female | |
| Impedance: | 50 Ohms nominal |
| Length: | 1738 mm |
| Width: | 1404 mm |
| Height | 1499 mm |
| Weight: | 9.8 kg |
| Mounting: | 22 mm diameter tube |
STLP 9128 F – Stacked Log Periodic Antenna
The stacked Log Periodic Dipole Antenna (Stacked LPDA) consists of two ordinary Log.-Per. structures. The excellent characteristics (flat gain over a large bandwidth, low SWR) of the ordinary LPDA designs could be maintained using the stacked LPDA design. The stacked design helps to focus the directional pattern of the H-plane somewhat, resulting in a typical gain improvement of 2.0 dB compared to an ordinary LP antenna. This is especially important for immunity testing, where a maximum fieldstrength and a good field uniformity is required. The beamwidth in the E-plane and the H-plane are nearly identical, providing an optimised illumination of the EuT with minimised ground reflection influence.Further the cross polar rejection of the STLP 9128 F is excellent. The fastlinks allows to disassemble the rear elements without any need for further tools within a few seconds. These fastlinks divide the antenna into five parts, which can be stored and transported easily.
Datasheet
Assembly of STLP Antennas
[fastlinks.pdf] for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
Main Application:
Generation of defined high field strength levels for radiated immunity testing.
| Frequency Range: | (55)70-1500(3000) MHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Max Power (7/16): | 2 kW (const.) |
| 3 kW (intermitt.) | |
| Max Power (N): | 1 kW (const.) |
| 1.5 kW (intermitt.) | |
| Connector: | Type 7/16 female |
| Type N female | |
| Impedance: | 50 Ohms nominal |
| Length: | 1950 mm |
| Width: | 2260 mm |
| Height | 2540 mm |
| Weight: | 11.0 kg |
| Mounting: | 22 mm diameter tube |
STLP 9129 – Stacked Log. Periodic Antenna
The STLP 9129 was especially designed for wideband immunity tests. The unique STLP 9129 is able to cover the entire frequency range from 70 MHz to 10 GHz with a typical isotropic farfield gain of 8.6 dBi with a ripple of less than +/- 2.3 dB only.
This unrivalled bandwidth was achieved by combining the both well proven antenna designs STLP 9128 D and the STLP 9149. The STLP 9129 does provide the optimum out of gain and field uniformity at the same time as well as both basic antennas do.
Datasheet
Radiation Pattern
Fieldstrength
Assembly of STLP Antennas
[fastlinks.pdf] for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
Main Application:
Generation of defined high field strength levels for radiated immunity testing acc. IEC 61000-4-3.
| Frequency Range: | 70 MHz – 10 GHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Connector: | Type N female |
| Type 7/16 female | |
| Impedance: | 50 Ω nominal |
| Length: | 1.69 m |
| Width: | 1.64 m |
| Height | 2.02 m |
| Weight: | 10.2 kg |
| Mounting: | 22 mm diameter tube |
STLP 9129 special – Stacked Log. Periodic Antenna
The STLP 9129 special is nearly identical to the STLP 9129 but with smaller dimensions because of the folded longest elements.
The STLP 9129 was especially designed for wideband immunity tests. The unique STLP 9129 is able to cover the entire frequency range from 70 MHz to 10 GHz with a typical isotropic farfield gain of 8.6 dBi with a ripple of less than +/- 2.3 dB only.
This unrivalled bandwidth was achieved by combining the both well proven antenna designs STLP 9128 D and the STLP 9149. The STLP 9129 does provide the optimum out of gain and field uniformity at the same time as well as both basic antennas do.
Datasheet
Assembly of STLP Antennas
[fastlinks.pdf] for quick removal of the rear parts of the antenna.
Recommended Adapter: AA 9209.
Main Application:
Generation of defined high field strength levels for radiated immunity testing acc. IEC 61000-4-3.
| Frequency Range: | 80 MHz – 10 GHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| Material: | Aluminium |
| Connector: | Type N female |
| Type 7/16 female | |
| Impedance: | 50 Ω nominal |
| Length: | 1.75 m |
| Width: | 1.49 m |
| Height | 1.32 m |
| Weight: | 10.2 kg |
| Mounting: | 22 mm diameter tube |
STLP 9148 – Stacked Microwave Log-Per Antenna
Stacked Logarithmic-Periodic Broadband Antenna for Linear polarised RX- and TX-applications in the microwave frequency range.
Datasheet
Radiation Pattern
Short Measuring Distances
Fieldstrength
| Frequency Range: | (0.7)1-18 (20) GHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| typ. Gain: | 9 dBi |
| Max. Input Power: | 50 W |
| Connector: | Type N female |
| Impedance: | 50 Ohms nominal |
| Length: | 490 mm |
| Width: | 270 mm |
| Height: | 270 mm |
| Weight: | 1.2 kg |
| Mounting: | 22 mm diameter tube |
STLP 9149 – Stacked Microwave Log.-Per. Antenna
Stacked Logarithmic-Periodic Broadband Antenna for Linear polarised RX- and TX- applications in the microwave frequency range. The antenna structure is made of laser-cut brass. For protection of the fine antenna structure against damage the antenna is equipped with a low loss plastic protection cover. The STLP 9149 is especially suitable for Immunity Testing acc. to IEC 61000-4-3 because of its good field uniformity. Further outstanding characteristics of the STLP 9149 are the wide bandwidth, the nearly constant high gain, very good impedance matching as well as equal beamwidth in E- and H-plane.
Datasheet
Radiation Pattern
Short Measuring Distances
Fieldstrength
| Frequency Range: | (0.6)0.7-9 (10.5) GHz |
| Polarisation: | linear |
| Pattern Type: | directional |
| typ. Gain: | 10.3 dBi ± 1.5 dBi |
| Max. Input Power: | 300 W (f=1 GHz) |
| 150 W (f=6 GHz) | |
| Connector: | Type N female |
| Impedance: | 50 Ohms nominal |
| Length: | 460 mm (+215 mm) |
| Width: | 270 mm |
| Height | 270 mm |
| Weight: | 3.7 kg |
| Mounting: | 22 mm diameter tube |