Introduction:
VULP 9118 E Special is a log-periodic antenna manufactured by Schwarzbeck (Germany) and distributed by EUTTEST (Shenzhen). The antenna is available from 60 MHz to 2000 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 use the antenna for immunity testing of DUTs with high radiated field strengths.

Plot of input power versus electric field strength
The Special version is the same as the VULP 9118 E The gain is the same, the difference being 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”AM9144
Graph of related technical parameters:

Isotropic Gain Curve
There is more about antennas with folded antenna oscillators:
VULP 9118 E 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