Folded antenna

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C343S7000MS

Reexamination Certificate

active

07598921

ABSTRACT:
An antenna element1is formed such that a plurality of turning parts13, 15, 17are formed by being turned back in zigzag in parallel to a ground conductor film2while extending perpendicularly thereto and the lengths of segments12, 14, 16, 18between the turning parts are shorter on a side of the ground conductor film2(a side of a feeding part4) and increase gradually as the segments are away from the ground conductor film2. The turning parts of the antenna element1are formed such that the antenna resonates at two or more frequency bands, and has a fractional bandwidth of 4% or more of its frequency in a first frequency band and a fractional bandwidth of 15% or more of its frequency in a second frequency band by adjusting the lengths L1, L2and L3of respective segments and the intervals d1, d2and d3between adjacent segments. Consequently, a wideband antenna is realized in two or more multi-frequency bands, for example 2.4 to 2.5 GHz and 5 to 6 GHz, by using a single folded antenna.

REFERENCES:
patent: 3355740 (1967-11-01), Mayes
patent: 4286271 (1981-08-01), Barbano et al.
patent: 6674405 (2004-01-01), Wang
patent: 6693604 (2004-02-01), Washiro et al.
patent: 10-013135 (1998-01-01), None
patent: 11-168318 (1999-06-01), None
patent: 2002-314322 (2002-10-01), None
patent: 2003-069331 (2003-03-01), None
patent: 2003-124737 (2003-04-01), None
patent: 2003-218623 (2003-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-4138510

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.