Full band sleeve monopole antenna with equivalent electrical...

Details Full band sleeve monopole antenna with equivalent electrical... Full band sleeve monopole antenna with equivalent electrical...

2008-03-17

2009-06-30

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Active sleeve surrounds feed line

C343S7000MS, C343S895000

Reexamination Certificate

active

07554506

ABSTRACT:
An inductance is coupled to the radiator and a set of inductances is coupled to the sleeve for increasing the resonant electrical lengths of the radiator and the sleeve. A set of impedances is coupled to the sleeve to absorb the reflective power of the radiator for increasing the bandwidth of the antenna. The winding layout of radiator and sleeve and the disposition of passive elements (such as inductance and resistance) allow the sleeve monopole antenna with full band FM radiation to have small size.

REFERENCES:
patent: 5231412 (1993-07-01), Eberhardt et al.
patent: 6963313 (2005-11-01), Du
patent: 7193566 (2007-03-01), Chen et al.
patent: 7365688 (2008-04-01), Tseng et al.

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