Dielectrically-loaded antenna

Details Dielectrically-loaded antenna Dielectrically-loaded antenna

2011-03-08

2011-03-08

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S850000

Reexamination Certificate

active

07903044

ABSTRACT:
A dielectrically loaded multifilar helical antenna having an operating frequency in excess of 200 MHz has an electrically insulative core with a relative dielectric constant greater than 5 occupying the major part of the interior volume defined by a three dimensional antenna element structure having, in one embodiment, eight coextensive helical tracks and, in another embodiment, six such tracks. The antennas are backfire or endfire antennas, all helical elements being phased so as to contribute to a circular polarization resonance at the operating frequency.

REFERENCES:
patent: 3503075 (1970-03-01), Gerst
patent: 4008479 (1977-02-01), Smith
patent: 4011567 (1977-03-01), Ben-Dov
patent: 5828348 (1998-10-01), Tassoudji et al.
patent: 5990847 (1999-11-01), Filipovic et al.
patent: 6072441 (2000-06-01), Tanabe
patent: 6278415 (2001-08-01), Matsuyoshi et al.
patent: 6421029 (2002-07-01), Tanabe
patent: 6608604 (2003-08-01), Sharaiha et al.
patent: 6886237 (2005-05-01), Leisten et al.
patent: 7002530 (2006-02-01), Chung et al.
patent: 2003/0184496 (2003-10-01), Louvigne et al.
patent: 2006/0125712 (2006-06-01), Sharaiha et al.
patent: 0 427 654 (1991-05-01), None
patent: 1 041 671 (2000-10-01), None
patent: 0 896 385 (2001-10-01), None
patent: 0 917 241 (2002-06-01), None
patent: 1 643 594 (2006-04-01), None
patent: 2 292 638 (1996-02-01), None
patent: 2 309 592 (1997-07-01), None
patent: 2 310 543 (1997-08-01), None
patent: 2 317 057 (1998-03-01), None
patent: 2 338 605 (1999-12-01), None
patent: 2 346 014 (2000-07-01), None
patent: 2 351 850 (2001-01-01), None
patent: 2 367 429 (2002-04-01), None
patent: 2 399 948 (2004-09-01), None
patent: 2 419 037 (2006-04-01), None
patent: 2 424 521 (2006-09-01), None
patent: WO 2006/045769 (2006-05-01), None
patent: WO 2006/136809 (2006-12-01), None
patent: WO 2006/136810 (2006-12-01), None
S.H. Zainud-Deen et al.;Investigation of an Octafliar Helix Antenna; Nineteenth National Radio Science Conference; Mar. 19-21, 2002; pp. 72-80; Alexandria.
British Search Report for GB 0700276.9; Filed Jan. 8, 2007.
The British Search Report for Application No. GB 0800222.2; Date of Search Apr. 18, 2008.

Affiliated with

Also associated with

Rating

Dielectrically-loaded antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dielectrically-loaded antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectrically-loaded antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2697142