| dc.contributor |
Jenn, David C. |
|
| dc.contributor |
Walters, Donald L. |
|
| dc.contributor |
Naval Postgraduate School (U.S.). |
|
| dc.contributor |
Department of Physics |
|
| dc.creator |
Tong, Chin Hong Matthew |
|
| dc.date |
2012-03-14T17:33:07Z |
|
| dc.date |
2012-03-14T17:33:07Z |
|
| dc.date |
2005-12 |
|
| dc.date.accessioned |
2022-05-19T06:14:34Z |
|
| dc.date.available |
2022-05-19T06:14:34Z |
|
| dc.identifier |
http://hdl.handle.net/10945/1802 |
|
| dc.identifier |
63129855 |
|
| dc.identifier.uri |
http://localhost:8080/xmlui/handle/CUHPOERS/99102 |
|
| dc.description |
An opportunistic array is an integrated ship-wide digital phased-array radar, where antenna elements are placed at available open areas over the entire shipâ s length. Such an array has the potential to fulfill many of the Navyâ s missions, including ballistic missile defence (BMD) where the radar mission encompasses exo-atmospheric surveillance, tracking and preliminary discrimination. Advantages of opportunistic arrays include enhanced stealth â since low-profile antennas reduce the shipâ s RCS; high angular resolution â as the entire shipâ s length forms the â apertureâ and produces a narrow beamwidth; and potentially lower costs â through the use of COTS technology and a flexible digital antenna architecture that reduces the number of distinct radar systems required. This research first investigated the opportunistic array concept in the context of BMD. A system level tradeoff was performed to size the system and verify that detection ranges greater than 1000 km could be achieved. Next, the research focused on designing a low-profile, broad-band U-slot microstrip patch antenna. Theoretical calculations and parametric studies were performed to develop an antenna element that could operate in the upper VHF/lower UHF frequencies. A set of simple design procedures is proposed to provide approximate rules that result in a good â first-passâ design with prescribed characteristics that require minimal tuning. |
|
| dc.description |
http://archive.org/details/systemstudynddes109451802 |
|
| dc.description |
Approved for public release; distribution is unlimited. |
|
| dc.format |
xviii, 88 p. : col. ill. ; |
|
| dc.format |
application/pdf |
|
| dc.publisher |
Monterey California. Naval Postgraduate School |
|
| dc.subject |
Ballistic missiles |
|
| dc.title |
System study and design of broad-band U-Slot microstrip patch antennas for aperstructures and opportunistic arrays |
|
| dc.type |
Thesis |
|