Stub Loaded Helix Antenna

Description:
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:
Title App Type Country Serial No. Patent No. File Date Issued Date Expire Date
Stub Loaded Helix Antenna US Utility *United States 08/888,324 5,986,621 7/3/1997 11/16/1999 7/3/2017
Stub Loaded Helix Antenna Foreign Europe 98 935 538.3-1248 1 016 164 7/2/1998 9/22/2004 7/2/2018
Stub Loaded Helix Antenna Foreign Australia 84762/98 762172 7/2/1998 10/2/2003 7/2/2018
Stub Loaded Helix Antenna Foreign Japan 11-507,452 3959123 7/2/1998 8/15/2007 8/15/2027
Stub Loaded Helix Antenna Foreign Canada 2,295,171 2,295,171 7/2/1998 10/18/2005 7/2/2018
Stub Loaded Helix Antenna Foreign Korea 1999-7012488 0489795 12/29/1999 5/6/2005 7/2/2018
Stub Loaded Helix Antenna Foreign China 98 8 06838.9 ZL 98 8 06838.9 1/3/2000 12/10/2003 7/2/2018
Stub Loaded Helix Antenna Foreign Mexico 2000/000143 213475 1/3/2000 4/2/2003 7/2/2018
Stub Loaded Helix Antenna Foreign Hong Kong 01100554.7 HK 1029870 1/22/2001 9/3/2004 7/2/2018
Category(s):
Communication
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
© 2017. All Rights Reserved. Powered by Inteum