Crank quadrifilar slot antenna

Details Crank quadrifilar slot antenna Crank quadrifilar slot antenna

1999-03-05

2000-12-12

Ho, Tan

Communications: radio wave antennas

Antennas

Slot type

343767, 343895, 343700MS, H01Q 1310, H01Q 136

Patent

active

061605239

ABSTRACT:
A quadrifilar crank slot antenna for GPS receivers. The antenna has a cylindrical dielectric body covered with a conductive coating. Four crank shaped slots are formed in a helical pattern in the antenna and extend around one half of its circumference to provide a right hand circular polarization for receiving GPS signals. A microstrip feed system is provided and is arranged to create balanced currents along both sides of each slot so that the impedance transformation is not adversely affected.

REFERENCES:
patent: D363488 (1995-10-01), Shumaker
patent: 2665381 (1954-01-01), Smith et al.
patent: 2877427 (1959-03-01), Butler
patent: 4012744 (1977-03-01), Greiser
patent: 4203070 (1980-05-01), Bowles et al.
patent: 4297707 (1981-10-01), Brunner et al.
patent: 4451830 (1984-05-01), Lucas et al.
patent: 4612543 (1986-09-01), DeVries
patent: 4675691 (1987-06-01), Moore
patent: 4843403 (1989-06-01), Lalezari et al.
patent: 5068670 (1991-11-01), Maoz
patent: 5200757 (1993-04-01), Jairam
patent: 5216430 (1993-06-01), Rahm et al.
patent: 5255005 (1993-10-01), Terret et al.
patent: 5353040 (1994-10-01), Yamada et al.
patent: 5427032 (1995-06-01), Hiltz et al.
patent: 5754143 (1998-05-01), Warnagiris et al.
patent: 5854608 (1998-12-01), Leisten
patent: 5955997 (1999-09-01), Ho et al.
patent: 5986616 (1999-11-01), Edvardsson
patent: 5995064 (1999-11-01), Yanagisawa et al.

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