Stacked Logarithmic Periodic Broadband Antennas

 

STLP9128C Stacked Log.-Per. Antenna STLP9128 D Stacked Log.-Per. Antenna STLP9128 E Stacked Log.-Per. Antenna STLP 9129  Stacked Log.-Per. Antenna STLP 9148 Stacked Microwave Log.-Per. Antenna #STLP 9149 Stacked Microwave Log.-Per. Antenna STLP100-500 Stacked Log.-Per. Antenna

STLP 9128 C - Stacked Log Periodic Antenna

 
  • Schwarzbeck STLP9128C stacked log.-periodic antenna
  • Schwarzbeck STLP9128C stacked log.-periodic antenna_2

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.  

 

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

 

pdficon small Datasheet STLP 9128 C

Radiation Pattern

Short Measuring Distances

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 STLP 9128 C Opt. 13-30

Assembly of STLP Antennas


 


STLP 9128 D - Stacked Log Periodic Antenna

 
  • STLP 9128 D - Typical Antenna Factor
  • STLP 9128 D - Typical Antenna Gain
  • Schwarzbeck STLP 9128D

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.

 

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

 

[fastlinks.pdf] for quick removal of the rear parts of the antenna.

 

Recommended Adapter: AA 9209.

 

 

Datasheet STLP 9128 D

Radiation Pattern

Short Measuring Distances

Assembly of STLP Antennas

 

 


STLP 9128 D special - Stacked Log Periodic Antenna

 
  • STLP 9128 D special - Typical Antenna Factor
  • STLP 9128 D special - Typical Antenna Gain
  • Schwarzbeck STLP 9128 D special

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.

 

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

 

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.

 

pdficon small 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.

 

 

 

 

pdficon small Datasheet STLP 9128 D special

Radiation Pattern

Short Measuring Distances

Assembly of STLP Antennas

 

 


STLP 9128 E - Stacked Log Periodic Antenna

 
  • Schwarzbeck STLP9128E
 

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.

 

Main Application: Generation of definded 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

 

 

 

[fastlinks.pdf] for quick removal of the rear parts of the antenna.

 

Recommended Adapter: AA 9209.

 

 

Datasheet STLP 9128 E

Radiation Pattern

Short Measuring Distances

VSWR

Assembly of STLP Antennas


 

 


STLP 9128 E special - Stacked Log Periodic Antenna

 
  • STLP 9128 E special - Typical Antenna Factor
  • STLP 9128 E special - Typical Antenna Gain
  • Schwarzbeck STLP9128E special Double Stacked Log-Per Antenna
  • Schwarzbeck STLP9128E special without the rear part of the 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.

Main Application: Generation of definded 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

 

[fastlinks.pdf] for quick removal of the rear parts of the antenna.

 

Recommended Adapter: AA 9209.

 

pdficon small Datasheet STLP 9128 E special

Radiation Pattern

Short Measuring Distances

pdficon small VSWR

Assembly of STLP Antennas

 


STLP 9129 - Stacked Log. Periodic Antenna

NEW

  • STLP 9129 - Typical Antenna Factor
  • STLP 9129 - Typical Antenna Gain
  • Schwarzbeck STLP 9129 Stacked Log-Per-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.

 

Main Application: Generation of definded 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

Max. Power:

1.5 KW (f<100 MHz)
500 W (f<1 GHz)
200 W (f<8 GHz)

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

 

pdficon small fastlinks for quick removal of the rear parts of the antenna.

 

Recommended Adapter: AA 9209.

 



pdficon small Datasheet STLP 9129

Radiation Pattern

Fieldstrength

Assembly of STLP Antennas

 


STLP 9148 - Stacked Microwave Log-Per Antenna

 
  • STLP 9148 - Typical Antenna Factor
  • STLP 9148 - Typical Antenna Gain
  • Schwarzbeck STLP9148 stacked log. periodic antenna

Stacked Logarithmic-Periodic Broadband Antenna for Linear polarised RX- and TX-applications in the microwave frequency range.  

 

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

 

pdficon small Datasheet STLP 9148

Radiation Pattern

Short Measuring Distances

Fieldstrength

 


STLP 9149 - Stacked Microwave Log.-Per. Antenna

 
  • STLP 9149 - Typical Antenna Factor
  • STLP 9149 - Typical Antenna Gain
  • Schwarzbeck STLP9149 stacked log. periodic 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.  

 

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

 

pdficon small Datasheet STLP 9149

Radiation Pattern

Short Measuring Distances

Fieldstrength

 


STLP 100-500 - Stacked Log.-Per. Antenna

Linear polarized stacked Logarithmic Periodic Broadband Antenna with aluminium tubing for immunity testing with extremely high power.  

 

Frequency Range:

(75)100-500 (550) MHz

Polarisation:

linear

Pattern Type:

directional

typ. Gain:

11.5 dBi +/- 1.1 dBi

   Max. Input Power: 

5 kW cont.

   Connector: 

Type 13/30 female

Impedance: 50 Ohms nominal

 

Length: 4.02 m
Width: 1.66 m
Height 1.78 m
Weight: 52 kg

 

pdficon small Datasheet STLP 100-500