Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1997-01-29
2000-08-01
Wong, Don
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343818, 3405727, H01Q 916
Patent
active
060973471
ABSTRACT:
An antenna, used as a voltage and power source, is designed to operate with an arbitrary load, or front end. One or more stubs are added to one or more of the antenna elements. The stubs act as two conductor transmission line and are terminated either in a short-circuit or open-circuit. Where the transmission line is odd multiples of the guided wavelength in length, the short-circuit stubs act as lumped inductors and the open-circuit stubs act as lumped capacitors. The magnitude of these lumped capacitors and inductors (reactances) is affected by a stub length, a stub conductor width, and a stub spacing. Zero or more short-circuit stubs and zero or more open-circuit stubs are added to one or more of the antenna elements to change the reactive (imaginary) part of the antenna input impedance. In a preferred embodiment, the reactive part is changed to equal the negative magnitude of the reactive part of the front end input impedance.
REFERENCES:
patent: Re24413 (1958-01-01), Weiss
patent: 5528222 (1996-06-01), Moskowitz et al.
The ARRL Antenna Book, The American Radio Relay League, Ch 2, 8, & 24, 1988.
Antenna Theory Analysis and Design, Constantine A. Balanis, Harper & Row Pub., pp. 496-501, 1982.
Communications Components, GaAs & Silicon Products Designer's Catalog, RF Components for RF/ID and RF Tags, Hewlett-Packard Co. 5091-4574E, pp. 2-16 to 2-17, Jan. 1993.
Duan Dah-Weih
Heinrich Harley Kent
Intermec IP Corp.
Malos Jennifer H.
Percello Louis J.
Wiegand James W.
Wong Don
LandOfFree
Wire antenna with stubs to optimize impedance for connecting to does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wire antenna with stubs to optimize impedance for connecting to , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire antenna with stubs to optimize impedance for connecting to will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-668380