  A high momentum resolution is required for the precision measurement of Higgs
boson at the International Linear Collider (ILC) using the recoil mass
technique. The International Large Detector (ILD) is designed to meet this
requirement by an MPGD-readout Time Projection Chamber (TPC) providing about
200 sample points each with a spatial resolution of 100 $\mu$m operated in a
magnetic field of 3.5 T. However, there is a potential problem that many
positive ions generated in the gas amplification process in the end-plane
detector modules would flow back into the drift volume of the TPC and distort
its electric field. These positive ions must be removed by a gating device
before reaching the drift volume. We have developed a GEM-like gating device
(gating foil) to prevent ions from back-flowing to the drift volume and
evaluated its performance. The performance measurement was carried out at DESY,
using a 5 GeV electron beam and the Large Prototype TPC in a 1 T magnet field.
We have measured the spatial resolution of our MPGD module equipped with the
gating foil and the electron transmission rate of the gating device. This was
the world first test beam experiment of a "wireless" TPC equipped with a high
performance gating device. In this report, we present our results on the
spatial resolution and the electron transmission rate.
