Low impedance loop antennas

Details Low impedance loop antennas Low impedance loop antennas

1999-01-28

2000-12-12

Le, Hoanganh

Communications: radio wave antennas

Antennas

Loop type

343867, 343741, 343742, H01Q 1112

Patent

active

061605255

ABSTRACT:
Low impedance loop antennas utilize a loop separated into a plurality of radiating segments fed in parallel. A four point feed loop antenna, including radiating segments 12, 13, 14, 15 had a measured input impedance varying from 1.8 to 5.8 Ohms over a range of 5 to 15 MHz, without excessive radiation Q degradation. An incorporated feed network includes transmission line segments, with conductors on opposite surfaces of a thin substrate, connecting the radiating segments to a centrally mounted coaxial connector for parallel excitation. Operating bandwidth of the loop antenna is determined by the characteristic impedance of the transmission line feed segments. Low impedance loop antennas which are small relative to operating wavelength can be fabricated on a thin flexible substrate for field transport and use. Incorporation of the antenna into a jacket or other clothing enables field use while minimizing restriction of activity of the user.

REFERENCES:
patent: 2749544 (1956-06-01), Pike
patent: 5142292 (1992-08-01), Chang
patent: 5402134 (1995-03-01), Miller et al.
patent: 5625371 (1997-04-01), Miller et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-222224