A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
| Published: |
Massachusetts Institute of Technology
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/82359 |
| _version_ | 1811091729835622400 |
|---|---|
| author | Yee, Steven C. (Steven Christopher), 1989- |
| author2 | Amy Duwel and Dana Weinstein. |
| author_facet | Amy Duwel and Dana Weinstein. Yee, Steven C. (Steven Christopher), 1989- |
| author_sort | Yee, Steven C. (Steven Christopher), 1989- |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013. |
| first_indexed | 2024-09-23T15:07:08Z |
| format | Thesis |
| id | mit-1721.1/82359 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:07:08Z |
| publishDate | 2013 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/823592019-04-12T21:30:26Z A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches Yee, Steven C. (Steven Christopher), 1989- Amy Duwel and Dana Weinstein. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science. Electrical Engineering and Computer Science. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013. Cataloged from PDF version of thesis. Includes bibliographical references (p. 78-80). Reconfigurable antennas with adaptable frequency, pattern, and polarization offer flexibility and size reduction for wireless systems that must increasingly execute multiple missions with less volume. These antennas will also complement anticipated cognitive radio systems, which promise more efficient use of the electromagnetic spectrum. Microscale liquid metal switches are proposed to overcome the series loss, mechanical fatigue, and limited power handling reliability of common methods of antenna reconfiguration such as semiconductor diodes and microelectromechanical switches. The proposed microswitches consist of mercury droplets that selectively connect solid metal traces. Both fluidic and electrostatic switch actuation mechanisms are investigated, and an electrostatic switch is demonstrated. Electrostatically actuated switches are designed into a compact single-feed patch antenna configurable between two communication frequency bands and a GPS band with different circular polarizations. The antenna topology is based on a corner truncated square patch with switched sets of extensions to achieve resonant frequency and axial ratio control. Measurements of reconfigurable prototypes demonstrate frequency and polarization configurability in good agreement with full-wave simulations. The proposed reconfiguration mechanism is compared to other methods, and future directions for the integration of microfluidics in reconfigurable radio frequency systems are proposed. by Steven Christopher Yee. S.M. 2013-11-18T19:13:23Z 2013-11-18T19:13:23Z 2013 2013 Thesis http://hdl.handle.net/1721.1/82359 861979561 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 80 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Electrical Engineering and Computer Science. Yee, Steven C. (Steven Christopher), 1989- A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| title | A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| title_full | A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| title_fullStr | A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| title_full_unstemmed | A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| title_short | A frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| title_sort | frequency reconfigurable circularly polarized microstrip patch antenna using liquid metal microswitches |
| topic | Electrical Engineering and Computer Science. |
| url | http://hdl.handle.net/1721.1/82359 |
| work_keys_str_mv | AT yeestevencstevenchristopher1989 afrequencyreconfigurablecircularlypolarizedmicrostrippatchantennausingliquidmetalmicroswitches AT yeestevencstevenchristopher1989 frequencyreconfigurablecircularlypolarizedmicrostrippatchantennausingliquidmetalmicroswitches |