File:Method of moments analysis of displaced-axis dual reflector antennas (IA methodofmomentsn1094538558).pdf
Original file (1,275 × 1,650 pixels, file size: 2.2 MB, MIME type: application/pdf, 80 pages)
Captions
Captions
Summary[edit]
Method of moments analysis of displaced-axis dual reflector antennas
(   ) |
||
|---|---|---|
| Author |
Vered, Nissan |
 |
| Title |
Method of moments analysis of displaced-axis dual reflector antennas |
|
| Publisher |
Monterey, California. Naval Postgraduate School |
|
| Description |
Small symmetric dual reflector antennas suffer from low efficiency due to subreflector blockage of the main reflector and subreflector scattering. These can be reduced by slicing the main dish and translating its rotational axis, along with modifying the subreflector geometry. This type of design is usually applied to low-frequency reflectors, but high-frequency analysis techniques are used. Consequently the agreement between measured and computed data is not as good as it would be for a rigorous solution such as the method of moments. This thesis modifies an existing method of moments computer code to handle the displaced axis geometry, and computes the radiation pattern and the efficiency of this antenna as a function of geometrical and electrical design parameters. Optimum configurations are identified for several feed types. Subjects: Antennas, Reflector; Method of moments analysis of displaced-axis dual reflector antennas |
|
| Language | English | |
| Publication date | March 1992 | |
| Current location |
IA Collections: navalpostgraduateschoollibrary; fedlink |
|
| Accession number |
methodofmomentsn1094538558 |
|
| Source | ||
| Permission (Reusing this file) |
Copyright is reserved by the copyright owner. | |
Licensing[edit]
|
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
|
 |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:36, 9 July 2020 |  | 1,275 × 1,650, 80 pages (2.2 MB) | Fæ (talk | contribs) | FEDLINK - United States Federal Collection methodofmomentsn1094538558 (User talk:Fæ/IA books#Fork8) (batch 1990-1992 #5745) |
You cannot overwrite this file.
File usage on Commons
The following page uses this file: