STLP 9128 E Special – Stacked Log Periodic Antenna

Schwarzbeck STLP9128E special Double Stacked Log-Per Antenna
Schwarzbeck STLP9128E special Double Stacked Log-Per Antenna

Schwarzbeck STLP9128E special without the rear part of the Antenna
Schwarzbeck STLP9128E special without the rear part of the Antenna
STLP 9128 E special - Typical Antenna Factor
STLP 9128 E special – Typical Antenna Factor

STLP 9128 E special - Typical Antenna Gain
STLP 9128 E special – Typical Antenna Gain
The STLP 9128 E special is a linear polarized stacked logarithmic periodic broadband antenna with N- or 7/16-connector for receive and transmit applications.

The STLP 9128 E special is nearly identical like the STLP 9128 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 defined high field strength levels for radiated immunity testing.

Frequency Range:80-1700 MHz
Usable Frequency Range:80-2700 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
Height1499 mm
Weight:9.8 kg
Mounting:22 mm diameter tube

Datasheet STLP 9128 E special
Radiation Pattern
Short Measuring Distances
VSWR
Assembly of STLP Antennas
Fastlinks (for quick removal of the rear parts of the antenna).

Video: STLP 9128 E Special – Stacked Log Periodic Antenna with AM 9144 M-TILT Mastfoot