Wide band dipole radiating element with a slot line feed having

Details Wide band dipole radiating element with a slot line feed having Wide band dipole radiating element with a slot line feed having

1993-05-20

1995-06-27

Hajec, Donald

Communications: radio wave antennas

Antennas

Slot type

343770, 343795, H01Q 1310

Patent

active

054283647

ABSTRACT:
A wideband radiating element including an input mechanism for receiving electromagnetic energy from a source and a balanced feeding mechanism extending from the input mechanism for transmitting the electromagnetic energy and for providing impedance matching over a range of frequencies. Finally, a dipole mechanism extending from the balanced feeding mechanism is provided for radiating the electromagnetic energy where the dipole mechanism has a shape to provide wide bandwidth impedance matching. In a preferred embodiment, an input mounting block is connected to the two opposing sides of a planar dielectric substrate. A balanced narrow conductor slot line extends from the input mounting block on both sides of the dielectric substrate to transmit the electromagnetic energy and to provide impedance matching over a frequency range of (0.5 to 18) GHz. The narrow conductor slot line is tapered to match the radiation resistance of a dipole element utilized to radiate the electromagnetic energy. The dipole element extends from the balanced narrow conductor slot line on both sides of the dielectric substrate with each wing having an expanded width for accommodating surface current of various distributions over the frequency range. The dipole element also includes an inner taper for radiating energy over the frequency range with the position of the dipole element relative to a ground plane being optimized to minimize radiation reflection.

REFERENCES:
patent: 4425549 (1984-01-01), Schwartz et al.
patent: 4573056 (1986-02-01), Duome et al.
patent: 4760400 (1988-07-01), Lait
patent: 4782346 (1988-11-01), Sharma
patent: 4905013 (1990-02-01), Reindel
patent: 5021799 (1991-06-01), Kobus et al.

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