Introduction:
VULP 9118 G Special is a log-periodic antenna manufactured by Schwarzbeck (Germany) and distributed and serviced by EUTTEST Shenzhen. The antenna is available from 45 MHz to 1500 MHz, and the specially customized special log-periodic antenna is capable of inputting up to 1 kW of power over the full frequency range, which allows EMC testers to test the immunity of DUTs with high radiated field strengths.

Input power vs. field strength graph - 1 meter test distance
The Special version has the same gain as the VULP 9118 G. The difference is that the Special version collapses the longest antenna oscillator at the rear end, which prevents the antenna from being too long and touching the darkroom ground plane when switching antenna polarization.
Technical parameters:
Product Specification Sheet:
“Reminder: swipe tables left and right”Graph of related technical parameters:

Isotropic Gain Curve
There is more about antennas with folded antenna oscillators:
VULP 9118 G special (this page)
EUTTEST is an official authorized distributor of SCHWARZBECK, whose full official name is: SCHWARZBECK MESS - ELEKTRONIK OHG
Ltd. is authorized by schwarzbeck to sell all products in China and provide technical service for the products sold.

Schwarzbeck Product List Schwarzbeck
BBHA 9120 D Schwarzbeck
Helmholtz coils Schwarzbeck
ETS 6512 ETS-Lindgren
FESP 5133-F Schwarzbeck
ETS 3144 ETS-Lindgren
VULB 9163 Schwarzbeck