  The THz band (0.1-10 THz) has attracted considerable attention for
next-generation wireless communications, due to the large amount of available
bandwidth that may be key to meet the rapidly increasing data rate
requirements. Before deploying a system in this band, a detailed wireless
channel analysis is required as the basis for proper design and testing of
system implementations. One of the most important deployment scenarios of this
band is the outdoor microcellular environment, where the Transmitter (Tx) and
the Receiver (Rx) have a significant height difference (typically $ \ge 10$ m).
In this paper, we present double-directional (i.e., directionally resolved at
both link ends) channel measurements in such a microcellular scenario
encompassing street canyons and an open square. Measurements are done for a 1
GHz bandwidth between 145-146 GHz and an antenna beamwidth of 13 degree;
distances between Tx and Rx are up to 85 m and the Tx is at a height of 11.5 m
from the ground. The measurements are analyzed to estimate path loss,
shadowing, delay spread, angular spread, and multipath component (MPC) power
distribution. These results allow the development of more realistic and
detailed THz channel models and system performance assessment.
