half-power beamwidth of a self-adapting conformal 1 x 4 microstrip array
DESCRIPTION
NORTH DAKOTA STATE UNIVERSITY. Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array. Neil F. Chamberlain Spacecraft Antennas Group Jet Propulsion Laboratory California Institute of Technology Pasadena, CA, USA. Dimitris E. Anagnostou ECE Department - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/1.jpg)
Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array
Benjamin D. Braaten*Masud A. Aziz
Sayan RoySanjay Nariyal
ECE DepartmentNorth Dakota State University
Fargo, ND, USA.
Neil F. Chamberlain
Spacecraft Antennas Group
Jet Propulsion Laboratory
California Institute of Technology
Pasadena, CA, USA.
Dimitris E. Anagnostou
ECE Department
South Dakota School of Mines and Tech.
Rapid City, SD, USA.
![Page 2: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/2.jpg)
1) Introduction and Background
2) The SELFLEX Array
3) Measurement and Simulation Results
4) Discussion and Guidelines
5) Conclusion
Topics
![Page 3: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/3.jpg)
-Compact SELF-adapting FLEXible (SELFLEX) Arrays
Overview: this project is investigating the possibility of embedding flexible sensors into the design of a flexible antenna array to compensate for surface curvature.
Short Introduction and Background
![Page 4: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/4.jpg)
Short Introduction and Background-Antenna elements on a singly curved surface:
Required phase correction [1]:
[1] R. L. Haupt, Antenna Arrays: A Computational Approach, John Wiley and Sons, Ltd., Hoboken, New Jersey, 2010.
![Page 5: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/5.jpg)
The SELFLEX Antenna
![Page 6: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/6.jpg)
Measurement and Simulation ResultsVaractor Loaded TL at 2.95 GHz:
SMT voltage controlled varactor phase shifter: 1)Manufactured by Skyworks Solutions, Inc. (part number: SMV1247-079) [3].2)Printed on a 1.27 mm thick Rogers RT/duroid 6010 substrate (same as the array).
[3] Skyworks Solutions, Inc. www.skyworksinc.com.
![Page 7: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/7.jpg)
Measurement and Simulation ResultsThe sensor circuitry:
Manufactured by Measurement Solutions Inc. [2]
[2] Strain Measurement Solutions, Inc., www.strainmeasurementsolutions.com.
![Page 8: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/8.jpg)
Measurement and Simulation ResultsTesting the flexible strain gauge:
0 20 40 60 80 1000
1
2
3
4
5
VR (
V)
bend angle (degrees)
Output voltage vs. bend angle
![Page 9: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/9.jpg)
Measurement and Simulation ResultsVaractor Loaded TL controlled by the sensor circuit:
Analytical computationsMeasured phase compensation
![Page 10: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/10.jpg)
The SELFLEX AntennaThe manufactured prototype SELFLEX array:
Printed on a 1.27 mm thick Rogers RT/duroid 6010 substrate.
![Page 11: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/11.jpg)
The prototype SELFLEX array under test:
Measurement and Simulation Results
![Page 12: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/12.jpg)
A prototype SELFLEX array under test:
Measurement and Simulation Results
![Page 13: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/13.jpg)
A prototype SELFLEX array under test:
Measurement and Simulation Results
![Page 14: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/14.jpg)
1) A short intro. and background on conformal antennas was presented.
2) The SELFLEX antenna was introduced.
3) Measurement and simulation results were compared – showing that the HPBW of a 1 x 4 microstrip array could be preserved for various bend angles (flexing).
Conclusion
![Page 15: Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array](https://reader036.vdocuments.net/reader036/viewer/2022062718/56812bdb550346895d904ac4/html5/thumbnails/15.jpg)
Thank you for listening!
This research was supported by NASA ND EPSCoR, Defense Microelectronics Activity (DMEA) and the DARPA/MTO Young Faculty Award.
Questions?