 |
|
|
|
|
|
 Title: |
US5600342:
Diamond lattice void structure for wideband antenna systems
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Pikulski, Joseph L.; Westlake, CA
Lam, Juan F.; Agoura Hills, CA
|
| Assignee: |
Hughes Aircraft Company, Los Angeles, CA
other patents from HUGHES AIRCRAFT COMPANY (260265) (approx. 5,163)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1997-02-04
/ 1995-04-04
|
| Application Number: |
US1995000416626
|
| IPC Code: |
Advanced:
H01Q 1/38;
H01Q 3/44;
Core:
H01Q 3/00;
more...
IPC-7:
H01A 15/00;
|
| ECLA Code: |
H01Q1/38; H01Q3/44;
|
| U.S. Class: |
Current:
343/909;
343/795;
Original:
343/909;
343/795;
|
| Field of Search: |
343/846,795,909,911 R,834
|
| Priority Number: |
| 1995-04-04 |
US1995000416626 |
|
| Abstract: |
A diamond lattice structure is employed as a ground plane in an array antenna system. The ground plane structure reflects incident energy radiated by the antenna radiating elements. The structure is fabricated from a layer of dielectric photonic band gap material in which a periodic void structure is defined. The void diameter is selected to maximize the void volume within the structure. Methods of constructing the ground plane are described.
|
| Attorney, Agent or Firm: |
Duraiswamy, V. D. ;
Denson-Low, W. K. ;
|
| Primary / Asst. Examiners: |
Hajec, Donald T.; Phan, Tho
|
| INPADOC Legal Status: |
Show legal status actions
|
| Family: |
None
|
First Claim:
Show all 17 claims |
What is claimed is:
1. An antenna array comprising:
- an array of radiators; and
- a substrate disposed below said array of radiators for reflecting incident energy radiated by said array, said substrate comprising a layer of dielectric photonic band gap material, said layer comprising a periodic structure of nonintersecting voids formed in said dielectric material to form a diamond lattice void structure emulating an atomic diamond lattice structure, said substrate fabricated without resonant defects in said periodic structure of voids.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 18 U.S. patent(s) that reference this one
|
|
|
|
|
|
|
| Foreign References: |
None
|
| Other Abstract Info: |
DERABS C97-118494
DERC97-118494
|
| Other References: |
K. M. Ho, C. T. Chan and C. M. Soukoulis, "Existence of Photonic Band Gap in Periodic Dielectric Structures," Phys Rev. lett. vol. 65, No. 25, 17 Dec. 1990, pp. 3152-3155.
(4 pages)
Cited by 45 patents
E. R. Brown, C. D. Parker and E. Yablonovitch, "Radiation Properties of a Planar Antenna on a Photonic-Crystal Substrate," J. Opt. Soc. Am. B, vol. 10, No. 2, Feb. 1993, pp. 404-407.
(4 pages)
Cited by 14 patents
[ISI abstract]
E. Yablonovitch, "Photonic Bandgap Structures," J. Opt. Soc. Am. B, vol. 10, No. 2, Feb. 1993, pp. 283-295.
(13 pages)
Cited by 47 patents
[ISI abstract]
|
|
 Nominate this for the Gallery...
|
|
