Small L-band antenna

Details Small L-band antenna Small L-band antenna

2001-02-14

2002-11-26

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S773000, C343S807000, C343S896000

Reexamination Certificate

active

06486849

ABSTRACT:

TECHNICAL FIELD OF THE INVENTION
This invention relates to RF antennas, and more particularly to L-band antennas.
BACKGROUND OF THE INVENTION
Log-periodic antennas have been used for L-band applications, but are generally relatively large. Dipole stub antennas have also been used for certain L-band frequencies, but provide unsatisfactory performance at higher frequencies in the L-band range from 500 MHz to 2 GHz.
Bi-conical antennas have been employed for low frequency applications below L-band
It would therefore be advantageous to provide an L-band antenna which is relatively small and has good wide-band performance.
SUMMARY OF THE INVENTION
An L-band antenna is described, and includes a plurality of elongated radiating elements arranged in a conical configuration, the radiating elements having first and second ends, the first ends of the elements attached in a tapered fashion to provide a conductive tapered end. The tapered end is attached to a connector.


REFERENCES:
patent: 2599896 (1952-06-01), Clark et al.
patent: 4074268 (1978-02-01), Olson
patent: 5260820 (1993-11-01), Bull et al.
patent: 5923299 (1999-07-01), Brown et al.
patent: 6154182 (2000-11-01), McLean
patent: 6198454 (2001-03-01), Sharp et al.
Mingyu and Changsheng, A High-quality Ultra-wideband Omni-Direction Antenna, 1997 International Symposium on Electromagnetics Compatibility Proceedings, 1997, pp. 122-125 (Tsinghua University, Beijing, China).

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