|
A World-Class Laboratory
Over the years, we have equipped our
laboratories with the state-of-the-art apparatuses and facilities worth tens of
million dollars through funds from various channels, including the university
equipment budget, private donation, industrial sponsorship, and research grant.
These provisions facilitate us to conduct precision antenna appraisals and
circuit measurements from the base band to the intermediate frequency, and to
the radio frequency/microwave frequency/millimeter-wave frequency up to
110 GHz.
Here, we are especially proud of the first
compact antenna measurement range ever installed in China. This anechoic
chamber makes possible experimental studies of small antennas. However, it
is not big enough to measure a base-station antenna for a mobile phone network
because the effective quiet zone is less than a meter in diameter. Of course,
it is not adequate to assess large antennas such as satellite transmitting
antennas and phased arrays for radars. To support further developments of
cellular phones and other users of large antennas, we have adopted an
alternative approach, namely, the near-field antenna measurement technique.
Today, we are glad that installation of the Near Field Antenna Measurement
Chamber was completed in 2004. It was funded by a $2.5 million Central
Allocation Vote in 2000 and a supplementary grant of over $2 million from the
Research Center. It was designed from scratch by our professors and the most
advanced materials and equipment from Belgium, Israel, and the United States of
America were used. This supplement enables us to measure a low-profile antenna
with a surface area as large as 4.0 m x 2.5 m. With this addition, we are
assured that our laboratory is one of the best equipped in the region, in
quantity and in quality.
Besides development of novel technologies for
making hi-tech products and design of innovative products for the emergent
market, the Research Center is committed to provide our industrial clients a
one-stop service, including pre- and post-production engineering tests.
To this end, we have equipped our laboratories with facilities for conducting
tests on electromagnetic compatibility, reliability, failure analysis, and other
vital-but-often-overlooked studies. At the end of the day, we need to assure
that our outputs are safe, robust, defect-free, and compatible with all legal
requirements.
In line with this vision, we have acquired the
needed apparatus and wave absorbent materials to convert the roof top just above
the Applied Electromagnetic Laboratory into an open field test site for
assessing electromagnetic compatibility and electromagnetic interference of an
electrical and electronic device. Together with the ferrite-lined anechoic
chamber acquired in 1994, the Research Center is the only unit among all
universities in Hong Kong that is staffed and equipped to carry out EMC/EMI
pre-compliance tests.
All in all, our laboratory is recognized by our peers as one of the
best equipped in applied electromagnetics in the Asia Pacific region, if not the
world.
|