Antenna and an antenna feed structure

Details Antenna and an antenna feed structure Antenna and an antenna feed structure

2006-06-21

2008-10-21

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S859000, C343S860000

Reexamination Certificate

active

07439934

ABSTRACT:
A dielectrically-loaded helical antenna has a cylindrical ceramic core bearing metallised helical antenna elements which are coupled to a coaxial feeder structure passing axially through the core. Secured to the end face of the core is an impedance matching section in the form of a laminate board. The matching section embodies a shunt capacitance and a series inductance.

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