STLP 9128 E Special – Stacked Log Periodic Antenna

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
Height	1499 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).