Antenna device

Details Antenna device Antenna device

2005-06-07

2005-06-07

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000, C343S852000

Reexamination Certificate

active

06903688

ABSTRACT:
An antenna device is adapted for use in at least two frequency bands, wherein the mean wave length of the higher of said frequency bands is λ. The antenna device comprises an antenna element in the form of a reed (10) mounted on a conductive support structure (20) having a projected area of less than λ2. The reed comprises a feeding portion (12) connectable to a feed device (32) and at least one impedance is connected between the reed and the conductive support. Also, the phase difference of transmitted and/or received signal waves within said at least two frequency bands over the reed is less than 120° in order to increase radiation con-ductance. A multi-band antenna device with a relatively wide upper frequency band is thereby provided.

REFERENCES:
patent: 5124733 (1992-06-01), Haneishi
patent: 6268831 (2001-07-01), Sanford
patent: 6326921 (2001-12-01), Egorov et al.
patent: 6346914 (2002-02-01), Annamaa
patent: 6614400 (2003-09-01), Egorov
patent: 6836246 (2004-12-01), Kadambi et al.
patent: 0932219 (1999-07-01), None
patent: 1052723 (2000-11-01), None

Affiliated with

Also associated with

Rating

Antenna device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3498070