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Stub Loaded Helix Antenna
Case ID:
96.059
Web Published:
9/24/2014
A novel antenna design which exhibits performance characteristics similar to the traditional helical antenna such as gain and circular polarization. The antenna is about one third smaller in diameter and one-half as long as traditional helix antenna. The antenna is suitable for use in satellite communication systems, wireless local area networks, and the emerging personal communications systems (PCS) market.
Patent Information:
App Type
Country
Serial No.
Patent No.
File Date
Issued Date
Patent Status
US Utility
*United States
08/888,324
5,986,621
7/3/1997
11/16/1999
Issued
Foreign
Europe
98 935 538.3-1248
1 016 164
7/2/1998
9/22/2004
Issued
Foreign
Australia
84762/98
762172
7/2/1998
10/2/2003
Abandoned
Foreign
Japan
11-507,452
3959123
7/2/1998
8/15/2007
Issued
Foreign
Canada
2,295,171
2,295,171
7/2/1998
10/18/2005
Expired/Unpaid Fees
Foreign
Korea
1999-7012488
0489795
12/29/1999
5/6/2005
Issued
Foreign
China
98 8 06838.9
ZL 98 8 06838.9
1/3/2000
12/10/2003
Expired/Unpaid Fees
Foreign
Mexico
2000/000143
213475
1/3/2000
4/2/2003
Issued
Foreign
Hong Kong
01100554.7
HK 1029870
1/22/2001
9/3/2004
Expired/Unpaid Fees
Category(s):
Communication
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For Information, Contact:
Mike Miller
Senior Licensing Manager
Virginia Tech Intellectual Properties, Inc.
(540) 443-9228
mmiller@vtip.org
Inventors:
R. Michael Barts
Warren Stutzman
Keywords:
Communications
Wireless Portfolio