Multiple loop antenna

Details Multiple loop antenna Multiple loop antenna

1996-04-19

1998-06-09

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

Loop type

343742, 343748, 343868, H01Q 2100

Patent

active

057641960

ABSTRACT:
In a multiple loop antenna comprising a combination of a plurality of loop antennas, at least one factor among the diameter of each loop antenna, the number of turns thereof, the direction thereof, the effective permeability thereof, the relative values of electric currents of loop antennas and the phase difference of electric currents is controlled in such a way that the magnetic field intensity within the range extending from the multiple loop antenna to the distance of transmission wavelength of the multiple loop antenna decreases in inverse proportion to the n-th power (n>3) of the distance from the multiple loop antenna. This makes it possible to obtain a multiple loop antenna that has a high-intensity magnetic field within the predetermined communication zone but can steeply decrease the magnetic field intensity according to an increase in distance from the antenna and surely control the magnetic field intensity to be not greater than a stated value on the outside of the communication zone.

REFERENCES:
patent: 3956751 (1976-05-01), Herman
patent: 5218371 (1993-06-01), Copeland et al.

Affiliated with

Also associated with

Rating

Multiple loop antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multiple loop antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple loop antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2205417