Hawai'i Center for Advanced Communications
Hawai'i Center for Advanced Communications
Hawai'i Center for Advanced Communications
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Hawai‘i <strong>Center</strong> <strong>for</strong> <strong>Advanced</strong><br />
<strong>Communications</strong><br />
An Incubator <strong>for</strong> Nurturing the<br />
Telecommunications Technology in Hawai‘i<br />
Multidisciplinary<br />
Research<br />
Research<br />
Infrastructure<br />
Outreach<br />
Activities<br />
Partnership<br />
with Industry<br />
Innovative<br />
Education<br />
Multidisciplinary<br />
Research<br />
Vision & Strategic Plan<br />
Partnership<br />
With<br />
Industry<br />
Technology<br />
Incubator<br />
Diversified<br />
Economy<br />
Economic<br />
Development<br />
in Hawaii<br />
Sponsors:<br />
NSF, ONR, ARO, DHS, Kyocera, Motorola, Raytheon, BAE<br />
Systems, Corning, L-3 <strong>Communications</strong>, OpCoast, Archinoetics,<br />
Agilent, LG, and Partners in Development Foundation
Hawai‘i <strong>Center</strong> <strong>for</strong><br />
<strong>Advanced</strong> <strong>Communications</strong><br />
HCAC is a <strong>Center</strong> <strong>for</strong> <strong>Advanced</strong> Wireless <strong>Communications</strong> and Radar<br />
Technologies with joint research and educational activities that promote<br />
national and international collaboration and partnership with industry<br />
For Further In<strong>for</strong>mation:<br />
University of Hawai‘i<br />
College of Engineering<br />
1680 East-West Road POST 201 Honolulu, HI 96822 (808) 956-3434<br />
http://hcac.hawaii.edu http://www.retinhawaii.info
Outreach Programs<br />
Research Experience <strong>for</strong><br />
Teachers (RET) Program<br />
http://www.retinhawaii.info<br />
Currently Serving 25 Middle Schools<br />
Throughout the State of Hawai‘i<br />
Sponsors:<br />
State of Hawaii, National Science Foundation,<br />
AT&T Foundation, and Partners in Development Foundation
Research Lab Facilities<br />
Microwave Network Analysis Laboratory<br />
Wireless <strong>Communications</strong> Test Bed<br />
Indoor Antenna Range<br />
UXO Test Bed<br />
Probe Station<br />
Sputtering Chamber<br />
Hybrid Smart Antennas <strong>for</strong> <strong>Advanced</strong><br />
Wireless <strong>Communications</strong><br />
Hybrid Smart Antenna System<br />
8-Channel 2.4 GHz Digital Receiver<br />
2-Channel 60 GHz Digital Receiver Prototype<br />
Response to Small Changes in<br />
User Position at 2.4 GHz
Geospatial Resources <strong>for</strong> Propagation Modeling<br />
Automatic 3-D Building Reconstruction from<br />
Google Earth Images<br />
Simulations & Measured Results <strong>for</strong><br />
Rosslyn City, VA<br />
Propagation Modeling Using<br />
Google Earth Maps<br />
<strong>Advanced</strong> Phased Array Antenna Systems<br />
Hybrid EBG/Ferrite Ground Plane with<br />
Raytheon’s Long Slot Array Antenna<br />
High Per<strong>for</strong>mance, Low-Cost Phased<br />
Array Antenna Design<br />
Radiation Pattern of Raytheon’s Long<br />
Slot Array Ant enna with Hybrid<br />
EBG/Ferrite Ground Plane<br />
Patents:<br />
• A new coplanar waveguide continuous transverse<br />
stub (CPW-CTS) antenna <strong>for</strong> wireless<br />
communications, US Patent, 7,079,082.<br />
• Coaxial Continuous Transverse Stub Element<br />
Device Antenna Array and Filter,<br />
U.S. Patent 6,201,509.<br />
• Ferrite phase shifter and phased array radar<br />
system, U.S. Patent 7,417,587
Research in Dual-Use Technology Areas<br />
Ground Penetrating Radar (GPR) <strong>for</strong><br />
UXO Detection and Classification<br />
UXO UXO detection/Classification<br />
detection/Classification<br />
GPR Measurement System Development<br />
Simulation Simulation Capabilities, Capabilities,<br />
GPR GPR Laboratory Laboratory & Testbed Testbed<br />
Automatic Classification Scheme<br />
High resolution GPR image<br />
Air-soil<br />
interface<br />
Pre-processing<br />
Pre-processed image<br />
Output<br />
Vector Network<br />
Analyzer<br />
Input (Broadband Signal: two<br />
ports <strong>for</strong> dual polarization)<br />
Removing surface<br />
Select target area<br />
Feature extraction<br />
Confidence level assignment<br />
Skeleton pattern<br />
AP clutter AT<br />
Complement<br />
threshold<br />
resize<br />
1<br />
0<br />
0<br />
0<br />
1<br />
0<br />
0<br />
0<br />
1<br />
Digital Signal<br />
Processing<br />
R ough surface, R ectangular target<br />
Dual polarization bow-tie antenna<br />
Dielectric<br />
Antenna Antenna Design Design and and testing testing<br />
Metal<br />
High Frequency Radar <strong>for</strong> Homeland Security<br />
T = t 1<br />
T = t 1 +dt<br />
33.5”(L) x 17.7”(W) x 20.7”(H)<br />
Goals:<br />
L<br />
W<br />
H<br />
• Small footprint<br />
• Minimal environmental impact<br />
• Portability<br />
• Multiple frequency operation<br />
Small Antenna Model<br />
Antenna Prototype<br />
Simulated Radiation Pattern<br />
Simulat ed Current<br />
Distribution<br />
Comparison of Simulated and<br />
Measured Results
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